Rice Water Weevil (Lissorhoptrus oryzophilus) is the principal insect pest in California rice fields and has been controlled with carbofuran. However, the EPA withdrew registration of carbofuran use in rice, effective this year. Newly registered compounds for weevil control will appear in pesticide use data for the year 2000. An insecticide for weevil control is applied once per season and routinely on only 35% of the rice acreage. Compared to many other crops, rice production is a small user of insecticides. Below, information necessary for efficient control of rice water weevil is presented.
Life Cycle
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