Abstract
When incorporated with irrigation water, benzene hexachloride dust is highly effective in destroying the Asiatic rice borer, Chilo suppressalis (Walker), feeding on the aerial part of the rice straw, into which gamma isomer dissolved in the water is translocated by absorption by the root system and by the straw (leaf sheaths). However, under conditions of a dosage somewhat larger than the average, the amount of the toxicant translocated through the root system was mostly rather low, and penetration into the straw was the main mode of entry.

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