Complex long-acting insecticidal spraying agent and application thereof

Abstract

The invention provides a long-acting insecticidal spraying agent, containing an active compound, a solvent and a propellant. The active compound accounts for 0.5-20% of a gross weight of the spraying agent, and is comprised of an ingredient A and an ingredient B; the solvent accounts for 0.1-50.0% of the gross weight of the spraying agent; the ingredient A in the active compound is a pyrethroid compound shown as a formula (I), wherein R1 and R2 represent methyl, trifluoro methyl, H atom or C1 atom, and R3 represents H atom, methyl or methoxy methyl; the ingredient B is one or a combination selected from a plurality of pyrethrin compounds. The insecticidal spraying agent of the present invention is equivalent to mosquito-repellent incense, liquid mosquito-repellent incense and electric mosquito-repellent incense mat on terms of insect long time control, and is more convenient and safe for usage. The invention also provides a sanitary insect control method through sprinkling microscale of the spraying agent on surfaces of building constructions or household objects.

Description

technical field [0001] The invention relates to an insecticide, in particular to a compounded long-acting insecticidal spray and a method for preventing and controlling sanitary pests by spraying a small amount of the spray on the surface of building structures or household objects. Background technique [0002] Dimefluthrin, Metofluthrin, Transfluthrin and Sefluthrin are novel pyrethroid compounds with high basic insecticidal activity. It has a good knockdown effect on sanitation pests, especially mosquitoes. In our patent CN101637178A, we proposed a quantitative spray with seflumethrin as an active ingredient. Compared with the traditional spray type, it is about 25m when used 3 In the room, you need to keep pressing and spraying for more than 2 seconds, and the total amount of liquid sprayed is about 8g. Quantitative sprays only need to press 1 to several times to spray 0.1-2g of liquid quantitatively, and the spray volume is reduced by more than 4 times. Reduce the am...

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Problems solved by technology

[0003] Our further study found that perflumethrin, methofluthrin, transfluthrin, and sefluthrin were used in this quantitative spray formulation, although within 6-8 hours after spraying Mosquitoes have very good control effect, but the degradation rate of these pyrethroid raw materials is relatively fast, and the lethal killing activity on pests is relatively weak, which leads to a decline in the control effect after 8-9 hours, and before the attack The fallen mosquitoes may revive and reactivate

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