Patent ID: 6074656
Filing Date: 2000-06-13
Classification: A01N

Abstract:
A heat-transpiration insecticidal method, comprising:impregnating a fibrous mat with at least one insecticidal ingredient of pyrethroid selected from the group consisting of allethrin, furamethrin, prallethrin, tefuramethrin, terallethrin, empenthrin, 5-propargyl-2-methyl-3-furyimethyl 2,2,3,3-tetramethylcyclopropanecarboxylate and fenfluthrin, and as a volatilization controlling agent piperonyl butoxide, in a weight ratio of said insecticidal ingredient of pyrethroid to said volatilization controlling agent equals 3 or less, and with not less than 50 mg per mat of said insecticidal ingredient of pyrethroids;setting the mat on a radiation plate which has an area of 0.2 to 0.6 time as large as the base area of the mat and has a heating temperature of 70 to 170.degree. C.; andmaintaining the insecticidal effect continuously for not less than five days.