METHOD AND DEVICE FOR INFECTING PLANT PESTS WITH ENTOMOPHAG Russian patent published in 1995 - IPC

FIELD: agriculture. SUBSTANCE: device comprises batching hopper 1 with sections 2 provided with gates and lower guides 4 accommodated in feedstock storage chamber with extensible cover 6. The device comprises chamber 7 for making trichograms with side section 8 provided for letting in the mother trichogram. Chamber 7 also accommodates metal plates 9 coated on both sides with dielectric material and connected to a source of electric charges 10. Each section 2 is filled with a portion of biomaterial, closed by gates 3 and stored in chamber 5. Mother trichogram is admitted into side section 8 and electric charge source 10 is switched on. Then cover 6 and gates 3 are opened and the biomaterial is placed into chamber 7. Passing between electrified plates 9, eggs of grain moth are attracted and held on said plates under the effect of electric charges. The biomaterial that failed to stick to the plates falls into hose 21 and is carried into batching hopper by fan 25 through air duct 24. Then gates 14 and 15 are closed and hose 22 opened. After a certain period the process of infection of grain moth eggs ends. On completion of the cycle, source 10 is switched off and the biomaterial is collected in bag 23. Then the cycle is repeated over again. EFFECT: improved functional and operating characteristics. 2 cl, 3 dwg