Response of adult large pine weevils (Hylobius abietis L.) to neonicotinoids (chloronicotinyls) and fenylpirazoles insecticides

摘要

The responses (knock-down and mortality) were studied of large pine weevil (Hylobius abietis L.) adults toselected insecticides with different mechanisms of action, such as neonicotinoids (clothianidin, acetamiprid); acting onthe nicotinic receptors of acetylcholine (ACh), and fenylpirazoles (fipronil); interfering with gamma butyric acid(GABA) receptors. Taking into account the speed of insect decay the order of effectiveness was as follows: the mosteffective insecticides were those that interfered with GABA receptors and second best insecticides acted on nicotinicreceptors of ACh.