QURILMADA KO‘PAYTIRILGAN BRACON HEBETOR SAY AVLODLARINING ASOSIY BIOLOGIK KO‘RSATKICHLARINI BAHOLASH

Abstract

This article evaluates the biological efficiency of a specially designed device developed for the mass rearing of the parasitoid Bracon hebetor Say. The studies were conducted laboratory conditions at the Research Institute of Plant Quarantine and Protection. Last-instar larvae of the greater wax moth (Galleria mellonella L.) were used as host insects. The parasitization activity, progeny productivity, adult emergence, sex ratio, and post-storage reproductive performance of Bracon hebetor Say reared in the newly developed device were comparatively assessed against those reared using the conventional method. The results demonstrated that the number of parasitized host larvae reached 191.4 individuals in the device, exceeding that of the traditional method. The average number of adults emerging from a single parasitized host larva was 10.7, compared with 8.4 under the conventional technology. A total of 2,047.9 adults were obtained using the device, providing more than 33% additional biological material. The female-to-male ratio reached 7.9:2.1, indicating a higher reproductive potential of the parasitoid population. Furthermore, storage studies revealed that +10°C was the most favorable temperature regime, ensuring the highest fecundity and biological activity after storage. The obtained results confirm the biological and technological advantages of the developed device and demonstrate its potential for efficient mass production and storage of Bracon hebetor Say in biolaboratory conditions.