What is Bacillus Popilliae?
As a pesticide active ingredient, the spores of this bacterium Spores of Bacillus popilliae infect larvae (grubs) of Japanese beetles, eventually killing the larvae and preventing their development into adult beetles.
How does Bacillus Popilliae work? (Mode of Action)
When the spores are ingested by Japanese beetle larvae (grubs) as they feed in the ground, the spores become active bacteria and multiply in the grubs, which continue to live. However, the large numbers of bacteria prevent larval maturation. When the larvae's bacterial population reaches a high enough density, bacterial spores are released to the soil to await ingestion by future beetle larvae. The infected beetle larvae die when the spores are released. Once the bacteria and spores become established in a geographic area, they greatly decrease the numbers of grubs and adult Japanese beetles, thereby reducing plant damage.
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