Sumitomo Chemical Company, Limited

Hiromu Akizuki

Mitsuyasu Makita

Takeo Tsukii

An insecticidal and acaricidal smoke fumigant formulation obtained by mixing granules A having a bulk specific gravity of 0.3 to 0.9 and containing a pyrethroid compound as an active ingredient, an inflammable substance and an organic blowing agent, with granules B having a bulk specific gravity of 0.5 to 1.1 and containing potassium perchlorate, potassium nitrate and/or potassium chlorate, burning agent, heat generation-regulating agent, perchlorate-decomposing aid and inorganic filler, the mixing ratio (weight ratio) of the granules A and the granules B being 1 to 0.5-4.

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Wakayama, Japan

Hiromu Akizuki