An analysis of data covering 12 years and 10 U.S. Corn Belt states reveals that farmers suffer economic loss from the overuse ...

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Bt must be applied no less than once a week to be effective, as it breaks down in sunlight. Timing is also important as ...

Bt, depending on the strain ... have hatched but before larvae are large enough to pupate. It is not a contact insecticide but should be sprayed on plant surfaces where larvae are active.