#Agrochemical #Pesticides #Insecticides #Bacillus Thuringiensis Kurstaki #Bacillus thuringiensis subsp. kurstaki #BTK #Bio Insecticides #Bioinsecticides #Biopesticides #Biological Pesticides #Caterpillar
This video mainly introduces a bio-insecticide special target on caterpillars, Bacillus thuringiensis subsp. kurstaki (BTK). BTK is a group of bacteria used as biological control agents against lepidopterans. BTK, along with other BT products, is one of the most widely used biological pesticides due to its high specificity; it is effective against lepidopterans, and it has little to no effect on non-target species, safe for crops and human beings.
It is a natural spore-forming bacterium that occurs in soils everywhere. As the spore matures, it produces a protein crystal that is toxic for lepidopteran insects like spruce budworms. When larvae ingest B.t., it destroys the lining in their gut, and they stop feeding and die within days.

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