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江西省和全国农技中心科研人员通过田间试验,观察并分析了2种用药方案对稻田害虫天敌群落结构影响的差异。试验结果表明,噻嗪酮与氯虫苯甲酰胺混配(用药方案Ⅰ)后施用,田间害虫天敌的科数和虫数均多于吡虫啉与毒死蜱混配(用药方案Ⅱ)后施用的田块;用药方案Ⅰ处理的田间天敌群落香农指数和均匀性指数均显著高于用药方案Ⅱ处理的田块;用药方案Ⅰ处理田间捕食类天敌狼蛛科和肖蛸科的优势度显著高于用药方案Ⅱ处理和空白对照;用药方案Ⅰ处理田间茧蜂
Jiangxi Province and National Center for Agricultural Science and Technology researchers through field trials, observed and analyzed two kinds of drug programs on the rice pests natural enemies community structure differences. The test results showed that the combination of buprofezin and chlorantraniliprole (application scheme Ⅰ), the number of field pests and the number of insect pests were more than imidacloprid combined with chlorpyrifos (drug program Ⅱ) after the application of plots . The Shannon index and evenness index of the natural enemy community in treatment Ⅰ were significantly higher than those in the treatment Ⅱ. The dominance of treatment Ⅰ in treating field predators was similar to that of the medication Ⅱ treatment and blank control; Medication program I deal with the field callus