Buchloe dactyloides extracts having insecticidal properties

Details Buchloe dactyloides extracts having insecticidal properties Buchloe dactyloides extracts having insecticidal properties

A - Human Necessities

01

N

A01N 65/44 (2009.01) A01P 7/04 (2006.01) C12N 15/82 (2006.01) C07K 14/415 (2006.01)

Patent

CA 2230245

The invention comprises a substance or plurality of substances extracted from the seeds of buffalo grass, Buchloe dactyloides. The crude extract was found to comprise one or a plurality of substances having molecular weights of less than 20 kDa which are natural insecticides against corn rootworm. Bioassays show corn rootworm mortality of up to 100 % when larvae are fed a diet containing crude or purified buffalo grass extract.

L'invention porte sur une ou plusieurs substances extraites des graines de l'herbe à bisons, la Buchloe dactyloides. L'extrait brut s'avère contenir une ou plusieurs substances d'un poids moléculaire inférieur à 20 kDa constituant des insecticides naturels contre la chrysomèle des racines du maïs. Des dosages biologiques ont mis en évidence une mortalité allant jusqu'à 100 % chez des larves dont la nourriture contient des extraits bruts ou purifiés de l'herbe à bison.

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