2024 Author: Gavin MacAdam | [email protected]. Last modified: 2023-12-16 13:38
The green grasshopper, found almost everywhere, eats alfalfa, soybeans, mogar, millet, corn, barley with wheat, and many other crops. In addition, it feeds on some insects and medium-sized butterflies, and sometimes it can even be cannibalistic. However, most often, in the absence of insects, the green grasshopper completely switches to plant food, eating an impressive amount of buds, leaves and flowers of trees and shrubs, numerous cereals, as well as leaves and stems of wild herbs. He does not ignore all kinds of agricultural crops
Meet the pest
The green grasshopper is an insect with an adult size of 27 to 42 mm. Its legs and body are light green, and the length of the reddish bristle antennae at the tips is slightly longer than the length of the body. Sometimes on their wings and on the chest you can see small brown spots. The head of a green grasshopper is equipped in front with a laterally compressed and well-separated crown apex. Elytra protrude noticeably beyond the end of the ovipositor and abdomen; the length of the ovipositor in this case reaches a length of 22 to 32 mm. The ovipositor itself has a xiphoid, saber or crescent shape and is slightly compressed from the sides. As for the elytra, in males they are equipped with a special chirping organ located at their base, consisting of a stridulation part and a speculum (this is the name of a resonating transparent membrane, better developed on the right elytra). The left elytra in green grasshoppers is always on top of the right one. And the organ of hearing is located on the shins of the front legs.
The size of the cylindrical eggs of green parasites rounded at the tips is 6 mm. As a rule, they are all elongated and colored in brownish shades. And the larvae of green grasshoppers are equipped with underdeveloped wings and have a green color.
The eggs laid in the soil overwinter in groups, each of which contains from two to eight eggs. In the spring, as soon as warm weather sets in, larvae emerge from them, the development of which takes about fifty to seventy days, during which they have time to shed as many as five times. First, the harmful larvae feed on wild crops, and a little later they move to vegetable and field crops, as well as to vineyards. The larvae turn into young grasshoppers, bypassing the pupal stage. Only one generation of green grasshoppers develops per year.
The main habitats of these polyphagous parasites are meadow mows, semi-moist and moist pastures, the edges of cereal fields, herbaceous swamps, wet meadows, herbaceous thickets on the outskirts of woodlands and woodlands located in coastal strips.
It is noteworthy that the length of the green grasshopper's jump is several times the length of itself. Also, this green gourmet is capable of flying at speeds of up to one and a half kilometers per hour.
How to fight
Unfortunately, at present, measures to combat the green grasshopper have not yet been developed enough. However, for extermination and prophylactic purposes, it is recommended to locate tobacco plantings as far as possible from the egg-laying sites of these pests, and also to process these plantings together with the adjacent territory with permitted insecticides. Treatments with insecticides directly during the egg-laying period of parasites are especially important.
Also, in places where green grasshoppers are located, it is recommended to place poisoned baits, for the manufacture of which you need to take arsenic acid soda (0.8 - 1.2 kg), water (24 liters) and bran (30 - 60 kg). If the area is small, the dosage of the above ingredients can be reduced, while maintaining the proportion. And arsenic-sour soda, in its absence, can be replaced with white arsenic or Parisian greens - for the same initial amount of the mixture, they will need 2 - 2, 5 kg.
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