摘要
根据稻象甲虫量与水稻产量的关系 ,结合现行的稻谷价格 ,产量水平和防治费用等因素 ,进行了稻象甲危害损失的测定 ,制定了稻象甲的防治指标。采用累积虫日作为防治指数 。
Based on the relationship between population density of Echinocnemus squameus and rice yield loss, combined with rice price, yield level and control costs, the rice yield losses caused by E. squameus were tested, and the economic thresholds of controlling E. squameus were set up. With cumulative insect-day as control index, the optimum control period of E. squameus was determined in Jiangxi Province.
出处
《植物保护》
CAS
CSCD
北大核心
2002年第3期12-15,共4页
Plant Protection
关键词
稻象甲
危害损失
防治指标
防治适期
水稻产量
水稻害虫
Echinocnemus squameus Billberg
yield loss
economic threshold
optimum control period
