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中华稻蝗是危害水稻的主要害虫之一。1989～1990年两年,我们在抚宁县、昌黎县、唐山市东矿区进行了扣笼接虫试验,明确了不同虫口密度对水稻生长及产量的影响,得出了中华稻蝗防治的经济阈值,并初步提出了我省北部稻区的防治指标为每平方米10头。
Chinensis locust is one of the major pests that endanger rice. In the two years from 1989 to 1990, we carried out the catch-cage test in Funing County, Changli County and the east mining area of Tangshan City. The effects of different insect population density on the growth and yield of rice were clarified. The economic threshold , And preliminarily proposed that the prevention and control index of the rice planting area in the northern part of our province is 10 heads per square meter.