2024 Author: Gavin MacAdam | [email protected]. Last modified: 2023-12-16 13:38
Elia nosaty is especially common in the steppe and forest-steppe. Her favorite delicacy is wheat, but she will not refuse to taste barley and rye. This funny pest is unpleasant because not only its larvae, but also adult bugs, cause damage. As a rule, the larvae have a detrimental effect on the volume of the crop, and the adults on its quality: the grain loses not only its germination capacity, but also its baking properties. Young shoots are most affected, the yellowed central leaves of which quickly dry out. And in dry seasons, especially if crops were sown late, the crop can be almost completely destroyed
Meet the pest
The little body of the nosed elia, in contrast to turtles and other bugs, has an ovoid-elongated shape and is endowed with a triangular shield covering no more than two-thirds of the abdomen. The chair of this colorful pest with cheekbones slightly extended forward also looks like a triangle. The proboscis plates below are equipped with large denticles, and small black spots can be seen on the lower surfaces of the middle and lower thighs. The color of the body of funny pests is usually yellowish, with bizarre patterns formed by a combination of light longitudinal stripes with dark ones. In length, the nosy aelia usually grows up to 10 - 12 mm.
The size of the larvae reaches 7.5 mm, and their body is covered with dark, hairless stripes, often having a slightly blurred appearance.
Adults overwinter under the remains of plants near the places of their revival on forest edges, in forest belts, in fields in perennial stubble and on the slopes of ravines. Having got out of their wintering places in the spring, the bugs begin to settle on perennial grasses, and closer to May, when an ear is ejected, they will move over to the crops of spring and winter crops. At about the same time, they begin to lay eggs. The process of oviposition, which coincides with the phases of waxy and milky ripeness, continues until the very end of the life of the nosy elia. On average, each female lays from one hundred to one and a half hundred eggs, and they usually lay eggs in groups of twelve pieces on the upper sides of the leaves. Most often, the laid eggs are placed in two rows. All of them are covered with a whole net of fleecy ribs and are painted in pale cream shades. It takes nine to ten days for the development of eggs at an air temperature of about twenty degrees, and if the thermometer rises to twenty-five degrees, five to six days will be enough. The beginning of the revival of voracious larvae almost always coincides with the stages of wheat flowering and the formation of its grains.
The larvae start feeding from the second age - their main food is the juice of young stems with leaves. After some time, the harmful larvae move to the grain, where they remain until it ripens. As a rule, the development of larvae takes from thirty to forty days, during which they manage to go through as many as five instars. The revival of adult bedbugs is observed in late June and early July. Having fed enough on wheat and a huge amount of wild-growing cereals, gluttonous bugs rush to wintering places. During the year, only one generation of the nosotid elia develops.
As a rule, the external signs of damage to growing crops by the nose alee resemble the damage caused by harmful turtles, however, the negative influence of the nose alee on the quality of the crop is still somewhat less.
How to fight
For preventive purposes, it is imperative to destroy all weeds on the site, and it is important to have time to harvest the crop at the earliest optimum date. Autumn fall plowing will not hurt either.
Both against larvae and against the imago of pests, the use of various chemical means of protection is allowed. Such means as "Almetrin", "Bi-58", "Decis", "Karate" and "Karate Zeon" will become excellent assistants in the fight against alea nose.
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