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在美国,稻水象甲是路易斯安那、阿肯色、得克萨斯、密西西比及加利福尼亚等州的重要作物—水稻上的最重要的害虫。由于成虫对稻田的趋性,使得雌成虫有机会在水淹的水稻叶鞘内产卵。新孵化的幼虫在叶鞘里取食一段时间后离开叶鞘,通过水移动到土壤和根内。稻田灌水后1—2周是稻水象甲集中产卵期。卵期因温度高低而小有差异,一般4—9天,灌水后8天开始出现幼虫。 分蘖及叶片生长是水稻营养生长期的重要生长现象。在路易斯安那,条播条件下,分蘖高峰期出现在播种后的30—50天。
In the United States, Asiatic weed is an important crop in the states of Louisiana, Arkansas, Texas, Mississippi and California - the most important pests on rice. Adult adults have the opportunity to lay their eggs in the leaf sheath of flooded rice due to the tendency of adults to paddy fields. The newly hatched larvae leave the leaf sheath after feeding on the leaf sheath for a period of time and move to the soil and roots by the water. 1-2 weeks after irrigation in paddy rice water chestnut as a concentrated spawning period. Eggs due to temperature and small differences, usually 4-9 days, eight days after the start of larvae. Tillers and leaf growth are important vegetative growth stages of rice. In Louisiana, under the sowing conditions, the tillering peak appears 30-50 days after sowing.