Birds antifeedants

Antifeedant/birds shikim./salicylalddiyde salicyl alcohol of willow leaves as dietary metabolite in beetles. Ins. 

While the greatest emphasis is on insects and other arthropods and mollusks because of the enormous commercial damage they do, and the difficulties in controlling them, studies of antifeedants is not confined to them only, and a considerable body of effort has been expended in seeking ways to control the feeding of higher animals and birds. 

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