The utility model discloses an insecticidal subsides of fragrant yellow wild snout moth's larva of prevention and cure whitewood, a serial communication port, including fit, fit one side is equipped with smooth surface and viscidity face, adopt the utility model provides an insecticidal subsides of fragrant yellow wild snout moth's larva of prevention and cure whitewood, simple structure, convenient operation, when using manpower sparingly material resources, the prevention effect is showing, can not lead to the fact pesticide residue on the fragrant tree of whitewood, not only environmental protection, medicinal material quality that in addition can not dialogue smell of timber tree and operating personnel healthy leads to the fact the influence.