Яйцепаразит гороховой зерновки Uscana senex Grese и пути повышения его полезной роли

Abstract

Spreading of the parasite on the agrocenosis of the pea field should be carried out taking in account its maximal possible search of the harmful pest for eggs deposition at a radius not more than 5 meters from the site of release, i.e. at the 125 points on 1 hectare, and on a equal distance from one other. Release of 300 thousand of the parasite females on 1 hectare at a density of ovipositor of the pea weevil not prevailing its economic threshold of danger by 10 times, will ensure protection at a level of 9% of the economic threshold of harmless.