It was found that the death of the full age of rice weevil. There is a value added to increased concentration of cypermethrine. Up the intensity of the rice weevil cypermethrine that causes death 50% LC50. Is equal to a ppm? And this time, the death of rice weevil full age 50% (LT50) is equal to a minute up to 50 LT are reduced when the increased concentration of cypermethrin.Found that the death of the adult weevil rice. The increased concentration of cypermethrine increase. The concentration of cypermethrine The rice weevil death of 50% LC50 due to 0.091And the time that a full 50 percent of rice weevil age (LT50) is equal to a minute up to 50 LT are reduced when the increased concentration of cypermethrin.
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