The bug bug is a dangerous pest. It feeds on grain crops, especially by activating at the moment when their growth and maturation begins. It is especially harmful in that it damages plants that are mostly valuable for humans, both in the fields and in the vegetable gardens. In addition, it can penetrate into the granary or barn and cause considerable damage there. In the houses, apartments and cottages he does not live.
Description of the larvae
During its development, which takes about a month, the larva goes through five specific stages. It changes, sheds and begins to look more and more like an adult. After complete transformation, they pass from the stalks, on which the eggs were laid, to the neighboring ones and begin to actively eat them.
Description of the adult
Adult harmful bug looks very harmless and even pleasant-looking. She has a flat oval body up to twelve millimeters long. From above it is covered with a dense shell, covered with dots or lines. The color can range from gray to brown.
Favorite delicacy of these bugs is wheat. Sometimes they damage the planting of barley, oats. May spoil the stock of corn. When the harvesting is over, the settlements of bugs migrate to granaries and barns. Some go to the forests and bury themselves in the upper vegetation layer, about three centimeters.
This type of bedbugs does not harm the person directly. They do not bite or cause allergic reactions. If they hit the dwelling, you can simply throw them out the window.
What harm does
In order to begin the fight against bugs of this species, you need to know the signs by which you can determine its appearance:
- on a certain area of planting begins the complete withering of young shoots,
- spikes are deformed, become white,
- grains are damaged and change color.
Even if the bugs are not completely destroyed by landing, grains from damaged plants they are not suitable for use. Their saliva contains special enzymes that change the chemical structure of the grain. By pushing the stalks with their proboscis, they inject this liquid there, and it reaches the ear and spoils the grain. At the same time, it is impossible to distinguish such flour from healthy one. The presence of the enzyme can only show wet conditions. Therefore, they begin to appear in the preparation of the dough. This is reflected in its viscosity, ductility and gray. Such flour is absolutely not suitable for further baking.
Ways to fight
The first step is to carry out preventive work to prevent the appearance of a harmful turtle:
- use planting material of varieties that are highly resistant to infestation by parasites,
- fertilize the soil with potash and phosphate preparations,
- regularly destroy weeds,
- land near forest fields or areas with wild vegetation. They are gradually settled by the enemies of bugs: beetles, ants, spiders and birds,
- on small plots in domestic conditions it is possible to fight a harmful turtle with the help of chickens. During the day, each individual can kill up to one and a half thousand bugs,
- harvesting ripened crops should be timely. For this, direct combining should be applied.
How to deal with bedbugs yourself? For this purpose, specially designed chemicals are used - insecticides. You can use the tools "Decis", "Fastak", "Mavrik" and even a number of drugs of similar action. It is necessary to regularly change the compositions in order to avoid insects getting used to them.
It is necessary to begin to process plants when the spikes are gaining milky ripeness: it is at this very moment that the harmful turtle populates the fields and separate sections of the bugs. Spraying carried out at this time will have the greatest effect.
It is possible to carry out the treatment of contaminated planting areas either by air or in a local orientation on plants. The use of drugs of this type can not only get rid of this type of bedbugs, but also destroy a fairly large number of dangerous pests of field plants. In order to spray correctly and do not harm the plantings, it is necessary to strictly observe the dosage and precautions that are indicated on the package. For each drug, they will be individual.
About corn moth can be found in this article.
Knowing the external signs of the bug, the specifics of its behavior, the means and methods of dealing with it, it is quite possible to take timely measures for its prevention and destruction. And thanks to this, the proper quality of your harvest will be safely preserved.
Bug control measures harmful bug
Bug bug (Eurygaster integriceps) - an insect, a family of moths, looks like its fellow bugs.
Bug harmful turtle biological features and control measures
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The insect has an oval, wide, flattened body, the size of which reaches an adult individual in length up to 13 mm, width up to 7 mm. The color of the chitinous shell is light and dark brown with a yellow or grayish undertone, the design of the shell is dotted or oblong.
The wings of a harmful turtle, unlike some of its relatives, are very well developed. She is able to overcome distances from 50 to 200 km in search of the field. The mechanism of the oral apparatus is piercing-sucking.
With this shield pest agrotechnical and chemical control measures are applied.
Bug harmful turtle developmental phase and where it occurs
This type of pest lives one year. Only adult individuals winter. They begin to mate in the spring. Awakened from hibernation, looking for a field for reproduction and life. Having found a suitable place, no later than the end of May, in the crops of early winter crops, the females, after two weeks, begin to lay eggs.
Egg develops and grows depending on temperature, from 7 to 20 days. After ripening, the larvae begin to appear. Larvae grow from 20 days to two months. During this period, they have five stages of development and increase in size from 1.5 mm to 10 mm. The fifth stage of maturation of the larvae and fledging is called the stage of the imago and is possible only when feeding the larva with young shoots of grass.
The adults winter in the forest belt, away from the field and move to wintering areas during the winter harvest harvest until the end of October. The imago should accumulate the necessary fat reserves for winter, and if they are undernourished, and the crop has been harvested, they are fed in the litter on the field or along the road with seeds of wild trees and wild cereals. In the spring the cycle repeats.
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The population of harmful turtles is found in steppe forest belts of Russia (Lower Volga region, Stavropol and Krasnodar Krai, Rostov Oblast and other regions), Ukraine, European countries, and in some countries of Asia and North Africa.
What eats bug bug turtle?
The turtle eats mainly valuable wheat varieties - spring and winter, less often - rye and barley, extremely rarely - corn and millet.
For a good harvest you need to fight while still plowing the ground and the condition of the plant must be monitored from the very beginning of sowing. Bedbugs lay eggs on the leaves of plants, but adults can hide inside the ear.
Processing the field should be carried out twice - the first time from adult harmful bugs that survived the winter, the second - from their larvae. Larvae develop in good weather very quickly and if they do not have time to process the field on time, their numbers will quickly increase, the field will en massely hit adults, which are harder to fight. The damage to the crop will be irreparable.
Records of bugs on the field are maintained and, if their quantity standards are exceeded, insecticidal treatments should be carried out as a matter of urgency. Counting is per m2, processing should be carried out upon detection: 2 adults who survived winter, blooms and up to the milky state from 5 larvae of adults, with further growth - if 2 adult individuals are found per 1 m of area.
Preventive methods of struggle are:
- Early harvesting - it does not allow the bugs to eat and prepare for wintering.
- Early autumn ground cultivation, which contributes to the significant destruction of parasites.
- In time carried out during the growing season insecticidal treatment.
- Soil fertilizer with potassium and phosphorus.
- Processing grain before sending it to storage in the barn.
How to get rid of the bug bug turtle quickly?
The most effective result when detecting overwintering imago is provided by a spraying method in two stages. The first is to fight adult adults and the second stage is to destroy their larvae. The second stage, always coincides with the formation of a young colossus.
- Alpha Tzipi, EC
- Volley, EC
- Imidor, VRK
- Karachar, KE
- Tagore, KE
- Tarzan, VE
- Faskord, EC
- Espero, COP
- Tsunami, KE and others.
Before use, carefully read the instructions and remember the safety measures.
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Bug harmful turtle: appearance, photo, how to get rid of it, what it feeds on, distinctive features
Bug harmful turtle - a pest of cereal crops, which, however, can eat and other plants. This enemy of the fields can not only affect the amount of the harvest, but also spoil the baking qualities of the grain. It is important to monitor in time to detect the pest and begin to fight it. It can be carried out in various ways.
Bug harmful turtle: general information about the pest
Harmful turtle has a fairly extensive range. In addition to Russia, the insect is found in the territories:
- North African
- Central Asia
- Of Ukraine.
The bedbug goes through several developmental stages typical of insects, with the exception of the “pupa” stage. This is the so-called type of incomplete transformation. Within one year only one generation of the harmful turtle can develop. They overwinter in the form of adult imago. For a cool season, bugs choose dry places in deciduous and mixed forests with sparse vegetation. Usually these are edges or glades with a litter of foliage about 3 cm. With the onset of heat, insects awaken and migrate to fields with cereal crops. It occurs in the spring when the air temperature reaches 12-14 ° C.
The population of noxious turtles can be observed in warm and calm weather. They migrate to places with an abundance of food in the amount of several dozen individuals at a height of three meters.
When the migration begins, first the females fly out from the wintering grounds, then the males. Insects explore nearby areas, then move on, but rarely travel long distances. The exceptions are individuals that inhabit the mountainous areas of the Caucasus and Central Asia. They are able to overcome distances of up to 200 km.
Bedbugs breed just like most other insects. After fertilization, female individuals lay eggs of yellowish-green color. Masonry has several rows (usually 2 or 3). In each of them is located seven eggs. As they develop, they change their appearance: in a week, an anchor-like pattern appears on their shell. And when the larva is almost formed, the egg will get a pink tint. Young pests, nymphs, cause major damage to plants. Eating, they make punctures and literally suck the juice from the crops.
What a bug bug looks like
In appearance, the noxious turtle resembles other known pests of cereal crops:
- Austrian bug
- Moorish bug.
It is especially difficult to find differences in the early stages of insect development. Adults can easily be distinguished by the lateral edges of the back and the shape of the head. They are rounded, while the pests listed above are straight or concave.
The turtle's head is slightly flattened at the top, the base is wider than its length. And other members of the genus Eurygaster it is pointed.
Austrian bug looks different from a harmful turtle pointed head
What is harmful insect and how to detect it
Young plants suffer most from the pest. If one of them has significant damage to the larva of the noxious turtle, then it will be noticeable on the leaves and stalks: yellowing and fading will begin. Eating a young individual with its saliva harms the unformed grain. As a result - a decrease in baking qualities. The fact is that before you start eating, the larvae change the "structure" of the grain so that its contents can be sucked. Under the influence of insect saliva, the destruction of protein and carbohydrate complexes occurs. This intervention spoils the gluten.
Pest infestation in mature plants will appear as wrinkling. If the insect "stuck" to the ears during the period of bud formation, then this can lead to a white-collar, as a result of which the yield is significantly reduced.
Therefore, if the above signs (yellowness or white-collar, wilt or shriveling) were detected, then the invasion of a harmful turtle can be suspected.
When a harmful little turtle cannot complete its development before the collection of bread, the nymphs and young imagos remain in the fields and feed on the compressed or fallen ears. Then adult individuals fly to wintering grounds.
The stability of crops to the pest can be increased by observing some simple rules of agricultural culture:
Pay attention to the seeds. Choose a quality seed. Do not forget about the norms of planting: observe the best methods of planting, the depth of the bookmark. The better the seedlings develop, the thicker the vegetation will be. And this, in turn, is worse for the bug, as below there will be poor illumination and inappropriate temperature conditions. It is known that on thinned crops of over-wintering bugs, turtles occur more, and the survival rate of the larvae is also high.
Fertilize. In order to form a thick and strong stalks, feed winter wheat in spring. Nitrogen fertilizers help well during the development of ears. It has also been observed that ammonium nitrate and melt have a toxic effect on the harmful bug at all stages of development (adults, egg-laying, larvae). The death of adult insects occurs when these fertilizers get on the skin.
Use early wheat varieties. Harvesting as soon as possible and in a short time. Remember that the pest can continue to feed on the spikes.
Choose the right place to plant. You should not grow crops on the lands adjacent to the lower slopes of the hills.
Under natural conditions, the bedbug population is reduced by:
- telennomies - strike eggs of a harmful turtle,
- flies-phases - parasitize on the hatching larvae of the bug,
- ground beetles
- pathogenic microorganisms.
Predatory insects and birds destroy bugs and turtles at different stages of development.
You must try to keep the number of natural enemies in the fields and gardens. Like other insects, they die during the treatment of crops with insecticides, therefore, the spraying time should be selected taking into account the following factors:
- chemical treatments against overwintered bugs are the most destructive for telenomin and other entomophages;
- the springtime use of organophosphorus drugs against the noxious turtle reduces the infestation of eggs with telenomines 1.5–3 times,
- special care should be exercised when working with tank mixtures of insecticides and herbicides, exterminating up to 100% of beneficial insects that fight the turtle,
- summer treatments are more gentle on the natural enemies of the bug.
You can also help attract insect helpers to the fields. Factors increasing their number:
- location of grain crops near forests, old-growth forest belts, fields of perennial grasses, rapeseed and virgin lands (in these places there are usually more nectar-bearing plants),
- planting a crop near the wintering grounds of beneficial insects. Так, теленомины в холодное время года локализуются под корой древесно-кустарниковой растительности, реже в корзинках подсолнечника, стеблях кукурузы и других укрытиях. После зимовки они концентрируются на посевах озимых культур.
Защита злаковых культур от вредной черепашки при помощи химических средств даёт ощутимый эффект. For these purposes, there are a large number of insecticides registered in Russia. These are predominantly neurotoxic poisons. Since crops are harmed both by adult bugs and larvae, the treatment should be carried out twice: during the flight period of over-wintering bugs and during the beginning of feeding of the larvae.
When planning chemical treatments should take into account the period of complete decomposition of the drug. Harvesting is safe only after a certain time has passed since spraying.
There are the following forms of insecticidal drugs:
- cdg - water-soluble granules,
- ke - emulsion concentrate,
- VRP - water soluble powder,
- pn - soluble powder,
- ve - water emulsion,
- μs - microencapsulated suspension.
How is the processing of fields
Treatment with chemical solutions occurs by spraying. For this are used:
- ground boom sprayers,
- ground fan sprayers,
- small aircraft (light aircraft).
The flow rate of the working solution during ground processing is 200–400 l / ha, and during air treatment it is much lower: 25–50 l / ha. It is believed that it is better to spray the fields in the early morning hours or in the evening.
Vinegar - the most common folk remedy for harmful turtle
Do folk remedies help?
Of course, compared with insecticidal treatment, folk methods are far less effective and sometimes even completely useless. However, they can be tested when it comes to small areas with crops, and the number of bugs (judging by external signs) is not critical. The most effective method of dealing with a harmful bug is spraying vinegar 9%. Having collected it in a spray, it is necessary to process a harvest. The procedure is repeated many times (up to 10 times), once every 4-5 days.
Reviews on the fight with a harmful bug
Bug harmful turtle - the most common pest that affects not only garden plants, but also whole cereal fields. When choosing methods of dealing with it, it is important to consider the benefit of natural enemies and not to destroy them when processing crops with chemical means. The drugs give a long-lasting effect, but with frequent use the bug begins to show stability. Therefore, it is desirable to alternate and combine treatments with different substances.
- Author: Evgenia Suchkova
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Features of the species, habitat
Bug harmful turtle belongs to the family of shushnikov-turtles. This name was given to this species for appearance, since the body of the insect looks like a little turtle, and the relief and color of the elytrice resemble shell. The size of an adult individual varies from 10 to 15 mm in length.
In everyday life, this species is classified as a grain bug. The popular name is due to the gastronomic preferences of the parasite. A bug bug photo is presented below.
Bugs of a turtle belong to the order of hemiptera and have two pairs of wings. Pests fly perfectly and move easily between feed bases.
In search of food, the bug turtles can overcome tremendous distances, migrating not only between fields, but also administrative areas.
Parasites show their activity with the onset of stable heat, when the temperature reaches 15 degrees above zero. The sex of the future insect does not play a role in the intensity of feeding of the larvae. During this period, overwintered individuals begin to actively eat winter varieties of cereals. The bug bug is especially common in wheat, he likes young succulent stems.
After the larvae that have left wintering pupate, a period of intensive mating and laying of eggs begins. Female bugs of turtles lay from 140 to 250 eggs for a short favorable period, which is just over a month.
The harmful bug bug has 14 eggs in the abdomen, which allows her to lay 14 eggs at the same time.
Under favorable climatic conditions, an embryo develops within a week, after which a larva hatches. Its dimensions do not exceed 1.4-1.6 mm. From the moment of appearance and until reaching the mature form, the larva has to go through 5 stages of development. With each phase, the appearance of the young individual more and more resembles an adult insect.
During the growth period, the larvae actively feed and accumulate the mass necessary for transformation into the next stage. It doesn't matter what the bug bug eats, whether it is corn or wheat, but its mouth apparatus does not allow eating solid food. In the early stages of development, the larvae make punctures in the stems of plants and suck its juices. Older individuals parasitize on the seeds of cereal crops and in order to liquefy hardened grains they inject a special enzyme.
Habitat grain bug distributed from the steppe zone to the forest-steppe. The insect is moderately thermophilic, so in the hot months, when the temperature rises to 30-35 degrees, it moves from the fields to the forest edges, parks and squares.
During this period, the pests are frequent guests in homestead land and summer houses, where the bugs are harmful turtle damages corn crops or other succulent plants. By the time the harvest begins, the insects are gaining enough fat mass for a successful wintering and with the onset of cold weather go into a sleeping state.
Danger to humans and animals, harm to agriculture
Despite the fact that the mouth apparatus of all the bugs has the same structure, not every species parasitizes animals during feeding. Bug harmful turtle can not cause physical harm to a person or another member of the warm-blooded, despite their formidable appearance.
Sometimes pests accidentally fly into a dwelling, but they do not carry any threat. But taking the shield with bare hands is not recommended, as it releases a special strong-smelling enzyme to scare away birds of prey. Therefore, the insect is often referred to as a bug stinker.
Shchitniki-turtles harm agricultural plants. Their favorite foods are barley, maize or other valuable cereal crops. Most often parasitic bug bug on wheat. Sometimes during the period of mass reproduction, pests reduce yields by 15%, causing severe economic damage not only to agricultural organizations, but also to private horticulture and household plots.
The bug bug bugs feed on the sap of the plant, for this it pierces the stem or spike and ferments the contents internally, and then sucks it out. Weathered crops lag far behind in growth and do not gain the necessary ripeness.
Grain damaged by a bedbug loses its commodity value and is practically unsuitable for making flour. The product obtained from the grains infected with enzymes is not suitable for baking, it has a gray color and a strong viscosity when kneading dough. To get high-quality wheat bread, flour should not contain damaged grains.
The main signs of damage to crops bedbug harmful bug are:
- withering of young shoots in the focus of infection,
- white color of ears and shoots
- the presence on the mature grains of microscopic chips and points at the bite points of the bug.
Bug harmful turtle prefers to eat the most valuable and expensive types of crops.
Due to its high mobility, the insect very quickly populates large areas, increasing its number and without special protection measures is able to destroy crops on large areas.
Fighting bug bug
There are two main ways to deal with parasitic bugs harmful turtle:
- Chemical, when insects are eliminated with the help of potent insecticides.
- Biological, in which parasitic individuals are destroyed by other living creatures: smaller insects or fungi.
An additional measure of protection against pests are preventive measures and the creation of adverse conditions for the life and reproduction of parasites.
The most effective drugs to combat the bug-bugs are:
- Fagot - intestinal insecticide from the group of synthetic pyrethroids causes a massive death of adults and larvae, which heals infected areas and allows plants to develop normally.
- Alpha Tzipi is a synthetic pyrethroid that affects larvae at any stage. Effective for the treatment of large areas, can simultaneously cure several hectares of cereal crops.
- Aktara is an insecticide from the group of neonicotinoids, which within an hour after treatment slows down the vital activity of the parasites, the bug bug stops feeding and a day later most of the population dies.
The biological methods of combating parasites include exposure to spores of various fungi that lead to infection and death. This method is environmentally friendly. Effective method of distribution in the habitat of turtle-insects of other predatory insects, using bugs as a food resource.
To get rid of the bug on the plots you can with the help of some breeds of chickens, each of which is able to peck up to 100 larvae per day. As a comprehensive measure, use early harvest and use special varieties of grass, resistant to parasites.
Bugs are harmful turtles - serious pests that can destroy entire wheat fields of expensive solid varieties. For successful pest control it is necessary to take a whole range of measures aimed not only at exterminating insects, but also at creating unfavorable conditions for their development.
Bug turtle enemy of cereal crops
Agriculture can not do without, the products are supplied not only to the villages, but also to the cities. For us, it is a useful food, for agricultural firms or private farmers - a good income. Cereals are included in the list of products, which is the basis of the economy of almost any state.
It is important to monitor the condition of the plants and in the presence of pests, immediately get rid of. After all, if you do not take any measures, any of them, for example, a bug bug bug, can greatly spoil the harvest. And the representative mentioned carries a serious threat to wholesome crops. Usually this enemy is dangerous for large industrialists of agriculture. But at the same time, it can also harm ornamental crops. Therefore, the need to combat it should reflect any person who has at least some relation to the industry.
It is not so difficult to recognize him by a flat and oval calf of 10-13 mm in size. It differs from other agricultural pests by a more dense and rigid shell, which is rounded to the top, but can sometimes be straight.
Bug harmful turtle
Several color options are pure gray with a brown or yellow tint. At the same time, the protective shell is not simply painted in a uniform color, but is covered with dots or lines that form a pattern. Often they are whitish, although occasionally there may be a light green or silver shade.
Under the shell are hidden rounded wings and body. The bug bugs well, and the wings are so developed that it can fly over a distance of about 200 km. The head of a triangular shape is two times smaller than the bugs themselves are a harmful turtle. The mouth has a piercing-sucking structure, due to which the pest damages the stems of the cereals in search of a life-giving juice.
Habitat and wintering
The area of distribution of turtles in Europe falls on the steppe zones and southern parts of the forest-steppe. On the territory of Russia it can be found in the North Caucasus, the Volga region, the Chelyabinsk region and Bashkortostan. In addition, the pest can settle in any other territory.
With the arrival of winter, the bugs are looking for a temporary shelter under the leaf litter or are looking for perennial weeds for themselves. At the same time choose places with low humidity. Sometimes they may live in a barn or wheat bins for the winter.
Bedbugs do not tolerate cold, so some of them die. If the winter is snowy and moderate, then the death of pests is not more than 15%. In the presence of sharp fluctuations in temperature, along with a weak physiological state and the absence of snow cover, losses can amount to 80-90%.
When warming from +12 to +14 g. insects come out of hibernation, and with a slight increase in temperature to + 16-17 g. bug bug gets out. Warming for another 2-3 grams. leads to their mass flight to the fields with cereals. At this time, as buds begin to bloom on poplars, maples. Depending on what weather conditions hold, the flight period may last until the end of spring.
Reproduction, the species of larvae
In the period of active breeding, the bugs almost evenly cover the forest, but in other cases they can be found only on well-lit areas and forest edges. The turtles start mating several days later (as a rule, 5-12 days) after the flight to the crops. Females begin to postpone future offspring on the surface of plants, and without leaving the place of laying, even with a significant cooling.
Females differ in the enviable fecundity of about 50-400 eggs, and in one clutch there can be up to 40 pieces. They are no more than 1 mm in size. They have a spherical shape, with a translucent structure. A fresh egg has a green tint, which after some time begins to darken. The female lays two-row laying on the leaves of cereals, weeds, or on lumps of soil. The process can last until mid-summer, after which the harmful bug dies.
Bug turtle and larvae
After 5-6 days after laying eggs, you can see the embryo. Its development takes 6-12 days, but if the weather is cool, the process can take up to 20 days. The development of the larva continues for 20-60 days, while it goes through 5 so-called stages or ages.
- The hatched larva has an almost black tint. Size - up to 1.5 mm.
- With the onset of the 2nd age abdomen brightens, but the head and chest remain dark. Dimensions are extended to 2-2.3 mm.
- At the third age, the larva becomes gray, the rudiments of wings appear. The body grows to 5-6 mm.
- With the onset of stage 4, it adds another 3-4 mm in length, while you can clearly see the features of the protective shell.
- at the final stage turns into a full-fledged bug.
At the first two stages of development, the larvae are very vulnerable and highly dependent on many external factors, including weather conditions. Often the causes of their mass mortality are low temperature, and an abundance of precipitation, which leads to an increase in humidity. If at this time to take the necessary measures, then the crop will be saved.
The larvae begin to feed on grain at the third stage of development, and upon reaching the fifth age they turn into an imago - a full-fledged individual. Usually, the ripening of cereal grains coincides with the period of mass insect fledging. And if the larva predominantly lives in only one place, then the young and already mature individual moves to the neighboring ears. Thus, the pests "capture" a vast area.
Stage 1 development of bedbugs
Harm from the bug
Since cereals make up the basic diet of the insect, one can understand how harmful the little turtle is to agriculture. A turtle does not pose any threat to a person and its bite does not cause serious consequences; it is often just a manifestation of an allergic reaction. When detecting a bedbug in the house, you can simply throw it away without fear.
Pest saliva is characterized by the content of a special enzyme, due to which significant changes in chemical composition occur in wheat. In the grains of cereals, the level of gluten is noticeably reduced. Such wheat is no longer suitable for further use.
By pushing the stalk of the grass with the help of a proboscis, the turtle injects its own special liquid, which reaches the ear. If the damaged grains are ground into flour, then in appearance it will be no different from ground healthy spikelets. Here are just the properties of such flour leaves much to be desired. Poisoning enzymes take effect when kneading dough. It is more viscous, viscous and dark gray. Of course, the dough made from this flour is not suitable for baking.
A characteristic feature of the insect can be considered the ability to choose the most valuable varieties of cereal crops that grow quickly and produce a lot of nutritious juice. Therefore, this enemy can doom the harvest to destruction, which in the end will bring nothing but losses.
Turtles pests of grain crops
Methods of struggle
Before you begin to fight the pest, you need to make sure that the harmful little turtle settled on the crops.
Signs of harmful turtles on crops:
- Young shoots start to wither and if insects have not yet spread to the whole field, then the unhealthy plant species is observed only in a certain focus of damage.
- Spikelets change their original shape.
- On the grains of the ear, you can see bite marks (dots) against the background of a light yellow spot, often they change their color.
Dots on wheat from bug bug bites
Natural enemies of turtles
If insects were found, measures should be taken immediately. Борьба с ними может вестись разными способами, которые будут рассмотрены. Как действенный вариант можно воспользоваться естественными потерями среди вредителей. У этого коварного врага тоже есть свой неприятель.
Одним из них является паразитирующий организм теленомус, который производит кладку непосредственно на потомство клопа черепашки. As a result of infection, the eggs of the pest acquire a completely black color, sometimes with a blue tint.
Phase flies also pose a serious danger to pest turtles. Adults make laying directly on the shell. After the larvae hatch, they penetrate under the protection and begin to eat the bug until it dies.
But besides them, the harmful turtle is afraid of other predatory insects that pose a threat to them at any stage of development. Spiders so generally hunt for everything that moves.
A number of different research institutes and special factories specialize in breeding entomophages (some insects that eat other similar representatives). This happens in laboratories, and when the need arises, insects are released. Such biological protection has advantages over the use of chemicals, some of which are toxic. But it implies the presence of nuances and is carried out only by experts.
The treatment of cereals with preparations of chemical origin today remains an effective method in the fight against harmful bugs. Some of them are adapted just for the view. There is a wide range of insecticides on the market.
Aktara. The effectiveness of this drug comes an hour after spraying. The bugs "lose their appetite", and disappear completely in a day. Its use is relevant in the case of large concentrations of pests. It is necessary to spray in the mornings and evenings when there is no wind. If rainy weather is expected in the coming hours, it is not recommended to use the drug.
Karate Zeon. The tool is sold as a suspension and has no less effective. It adversely affects the nervous system, with the result that the harmful little turtle dies in a matter of hours or days. Unlike other chemicals, has no effect on the bees. When preparing the solution, you should use it on the same day.
It is necessary to treat plants with plants twice: the first is a protective measure against bugs after wintering, and the second is protection from the larvae.
In this case, you should do everything in accordance with the attached instructions and observe safety precautions. It is possible to pick up the necessary insecticidal means according to the reference book which contains the full list of the allowed chemical preparations in Russia.
Bowerin. It is a safe means to combat insect pests. His use causes him to be infected with the white muskardine. A fungus, once inside the bug, begins to poison him with the help of its toxins. In addition, it grows through an insect, enveloping it with mycelium, which causes the death of the bug.
In order to pre-protect the cereal from encroachment from harmful bugs of turtles, it is worth taking preventive measures.
- timely harvesting ripened ears of a combine,
- time to remove wild weeds from the field,
- it is necessary to process the fields with potash or phosphate fertilizers,
- choose for planting the most resistant to the parasite varieties of culture.
As for the weeds clause, the vegetation around the perimeter of the field should be left untouched. So you can save a population of natural enemies of pests.
Getting on crops, bug bugs can cause great damage to agriculture. For this reason, do not underestimate him, and immediately act accessible methods. Moreover, if you carry out prevention, you can do without chemistry. Only in this case is it really possible to avoid large crop losses.
Signs of appearance
The basis of the bug bug control is its early detection. The sooner people notice changes in plants, the more effective the pest control will be. The main signs of the appearance of this insect:
- Mass withering of young shoots or the whole plant.
- The presence of white bloom on the shoots of grain crops.
- Deformation of leaves and shoots.
- The appearance of cracks on the grains and bite marks.
As a rule, the bug bug chooses the most juicy and healthy plants. In the process of evolution, they developed such an ability, so first of all it is necessary to pay attention to ideally growing shoots.
Pest control has always been a priority for agricultural landowners. Over the years, a tactic has been developed that reduces the number of harmful bugs and does not harm crops. Among them are the following:
- Ripened cereal must be cleaned on time and only with the help of a combine.
- It is necessary to constantly maintain the purity of sowing. To do this, it is necessary to remove all weeds in a timely manner and keep a forest area along the perimeter.
- To help plants grow and develop, which are home to insects - the enemies of turtles.
- To carry out fertilization of the soil by means which structure includes phosphorus and potassium.
- Grow those varieties of crops that endure pest invasions.
In addition to carrying out all the mandatory measures to protect the crop from the harmful turtle, additional methods can be applied. Despite their simplicity, they are effective and significantly reduce the risk of pests. These include:
- Burning of fallen leaves in neighboring plantings before the onset of cold weather. This will destroy the insects hiding in them preparing for winter hibernation.
- Sowing of false fields with useless or low-quality cereal crops. There is a high probability that pests will settle there and will not harm the main crop.
- Fallen leaves are buried in deep pits along with wintering insects.
This method of dealing with turtles is an extreme measure and is used only if the number of insects is very large. Another possible circumstance for the use of chemicals is the struggle not with adults, but with their larvae. For this, the whole field is treated with special preparations during the maturity of the crop.
It is very important to remember that bedbugs quickly adapt to new conditions for them and can develop immunity to a particular chemical agent. To eliminate this possibility, you need to change the drug annually. In addition, it is important not to overdo it with chemicals and not to treat the field with an excessive amount of it. This will not only adversely affect the crop, but may also cause harm to human health.
Harmful turtle - this is one of the most unpleasant bedbugs pests. He is able to quickly multiply and destroy large areas of crops. People have developed many effective methods to combat this insect, which help to eliminate it and protect the crop.