Investigations on dynamics of juvenile hormone mimics on the economic parameters of silkworm, Bombyx mori L.

Juvenile hormone mimics are known to prolong larval life in insects and thus sericulture, it has been shown boost good cocoon silk yield. In the present experiment, double hybrid (FC1XFC2) silkworm was utilized analysed performance of economic traits. The influence juvenile ie., phytojuvenoids from Pinus (Pinus roxburghii), Custard apple (Annona squamosa) Tapioca (Manihot esculenta), a commercially available mimic Serimore Pyriproxyfen recorded as quantitative characters when administered topically with two different doses at distinct instars. quantum expression trait like weight, shell ratio, filament length denier were found be increasing increase number treatments which is administration rate 20% 30% concentration for treated larvae. case custard larvae, treatment showed best results. Single 5µl 10µl pyriproxyfen gave similar outcome respect all parameters. Among all, on par characters.