SU488564A1 - The method of mass breeding predatory Galician aphidymia - Google Patents

Description

This invention relates to a method for protecting a plant grown in a green field from a biological method against damage by their aphids. There is a known method of breeding a plant of a single insect-pine sawfly: By breeding insects in cages, at a given temperature and humidity. Insecticides used in greenhouse control in greenhouses lead to the emergence of resistant pest populations, adversely affect the condition of plants, create an accumulation of residues and fruits and poisoning of workers Biological, aphid control method - using their natural enemies (predatory gallip larvae) is devoid of these shortcomings, but its practical application is impossible due to the lack of a method of mass breeding of aphidophages. ; The purpose of the invention is to obtain the maximum number of pseudobods with continuous laboratory dilution of the hash gallipses of Afidimiz / Lpa / co (letes ' jstj / diw aUofid for later use in greenhouses. This is achieved by using wick aphids propagating on feed bean , with a duration of one reproduction cycle of 17 days. In order to obtain the greatest number of eggs of gall midge, the fodder beans with the vika aphid propagated on them are placed in closed cages and kept at 24 26 C and relative humidity This is carried out as follows: Every day, a series of fodder bean plants grown in pottery pots and pre-populated with pickling gummy plants (jumbo vriciae) j are populated by predatory Gallah eggs. Hatching larvae are fed with aphids, the resulting cocoons are removed from a layer of sand and used to control aphids in greenhouses. The method includes the following operations: sowing beans, planting vika plants

aphids, gall midges, rearing the gadlip larvae, collecting cocoons.

Wick aphid beans are infested 5 days after sowing the seedlings with seeds and leaving them in multi-section vertical cages in the laboratory at 24-26 ° C and relative humidity 40-50%. For two days, the plants were transported with tl into the closed cages, where the adult gall midges were preliminarily expelled, and maintained at the same temperature, but at a higher humidity (80%) during the day. Then, the plants are transferred to multisecondia cages set here for 5 days, after which they are cut and together with the larvae of gall midges that have reached II fBoapacTa, are placed in single-sided cages, at the bottom of which are behind. Previously, sand was filled with a layer of at least 2 cM, previously passed through a sieve with openings of 0.25 mm and calcined.

In each cage with galliums there are aphids with reserve plants at the rate of at least one adult per 1 gall midge larva. In the next two days, the amount of food is increased by 3-4 times. 11 days after planting

With gall midges, the larval pupation ends, and sand is passed through a sieve with holes ø 45 mm. The gallium cocoons remaining on the sieve are taken into account by weight or by volume and used to combat aphids or lay on sfanenna.

P rdmet invention

1. The method of mass dilution of the predatory gall midge of aphidymia, which includes its cultivation in closed cages at a temperature and humidity on natural food, which is characterized by the fact that, in order to radiate the maximum number of predator footsies, for later use in closed ground, as food for larvae gall midges use vicoy aphids. propagated by fodder beans, with a duration of one breeding cycle of 17 days.

2. The method according to PD, characterized in that, in order to obtain the greatest number of eggs of gall midges, the fodder beans with the spawn of aphids propagated on them are placed in closed cages and kept at 24-26 ° C and relative humidity of 8 O% during O11 days.