Estimation of electrostatic field influence on quality indicators of grain moth eggs for production Trichogramma

Abstract

The effectiveness of Trichogramma that is used in the production of environmentally safe products is also determined by the quality of grain moth eggs used in its production. A portion of 300 g of grain moth eggs was divided in half, one part of which was passed through the electric separator, and the other used as a control. The level of regeneration of grain moth caterpillars, the level of grain contamination by grain moth caterpillars, and the total fecundity of grain moth females were determined. The influence of the electrostatic field on the fractional composition of grain moth eggs was also determined. To study the levels of regeneration of grain moth caterpillars and of grain contamination by grain moth caterpillars, experimental and control portions of grain moth eggs were placed in 100 kg of barley, respectively. The total fecundity of grain moth females was determined by the daily collection of eggs and the summation of their total weight after finishing the process of production of grain moth eggs. To determine the fractional composition of grain moth eggs, 100 eggs were selected from each portion to determine their volume. The results of the studies showed that the level of regeneration of grain moth caterpillars for eggs treated by the electric separator was 91%, and for the control – 93%, the level of grain contamination by grain moth caterpillars for eggs treated by the electric separator was 93%, and for the control – 95%. It was also found that the total fecundity of grain moth females was 1,028 g for eggs treated by the electric separator, and for the control – 1010 g, and the number of large eggs in the portion treated by the electric separator was 39%, and for the control – 29%. Thus, when the electric separator is used, the levels of regeneration of grain moth caterpillars and of grain contamination by grain moth caterpillars are within the experimental error, while the total fecundity of grain moth females and egg size improved.