Mass Breeding of Phytophagous Insects Using Biologically Active Substances

Abstract

The purpose of the study is to develop a method to increase the efficiency of the production of host insects for the mass breeding of entomophages. Mass cultivation of cereal aphids includes sowing seeds of wheat or barley, settling aphids in plants, collecting and counting aphids. To identify plant growth regulators (PPR) that stimulate the output (yield) of cereal aphids during its cultivation, the following preparations were tested: Immunocytofit (Tablets), Albit (fluid paste), Chitosan Bio (wettable soluble powder), Radipharm (liquid), Hydromix (microgranules), Kendal (solution), Biodux (liquid), Zircon (solution), Krasnodar-1 (solution). The experiment was established by pre-sowing seed treatment. Three days after germination, the wheat was infested with aphids, the effectiveness was determined by weighing the aphid biomass. The effectiveness of the preparations was determined by weighing the biomass of aphids before infection and 9 days after infection in comparison with the control variant. We studied the possibility of growing entomophages of harmony variable (Harmonia axyridis Pallas) and the aphid parasite Aphidius chamomile (Aphidius matricariae Hal.) It has been established that the use of plant growth regulators Immunocytofit (Tablets), Biodux (liquid), Chitosan Bio (wettable soluble powder) and Krasnodar-1 (solution), significantly increases aphid biomass (almost 4 times in all cases compared with control: about 550 mg is the average value of the biomass of aphids grown using the preparations Immunocytofit (Tablets), Chitosan Bio (wettable soluble powder), Biodux, (liquid), and Krasnodar-1 against 140 mg in control) and does not adversely affect the process of breeding aphidophages. The rapid increase in the number of aphids is promising for the technologies of mass breeding of phytophagous insects in the programs of biological plant protection.