Bioactive influence of essential oil (Aloe-vera) on the number of fertilized eggs (%) and incubation period of multivoltine mulberry silkworm Bombyx mori Linn.

The evaluation of essential oil (Aloe-vera) on the Bomyx mori has been proved to be in Sericulture industry. This study was carried out to show the influence of Aloe-vera oil on the number of fertilized eggs (%) and incubation period of Bombyx mori eggs. In 0.25, 0.5 and 0.75 ml. amount of Aloe-vera oil, the incubation period decreased slowly and slowly, in single (treated the 5th instar larvae only one times) and double treatment (in first treatment treated the 4th instar just before two days of 4th moulting instar, second treatment for the same larvae was given to the 4th instar just before two days of spinning) but 1.00 ml. amount of Aloe vera oil in all the treatment caused considerable increase in the incubation period of eggs. The minimum incubation period was noticed (8.29±1.357 days) in case of double treatment by 0.75 ml. amount of Aloe-vera oil. Maximum number of fertilized eggs was noticed (81.00±2.239 %) in case of double treatment by 0.75 ml. amount of Aloe-vera oil. In conclusion, it may be suggested that, Aloe-vera oil in sericulture may be useful for boosting up the Sericulture industry as well as the economy of silkworm rearing.