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大豆苗期的主要害虫是大豆蚜虫Aphisglycines Matsumura和豆秆黑潜蝇Melana-gromyza sojae(Zehntner),常年因两种害虫减产30％左右。本试验的主要目的是进一步筛选对大豆蚜虫有显著控制效果而对天敌无明显杀伤作用的新型农药,以期达到保护和利用害虫天敌维持豆田生态平衡的目的,免蹈北方棉田、南方稻田化学防治中产生恶果的覆辙。
The major pests of soybean seedling are soybean aphid Aphisglycines Matsumura and Melana-gromyza sojae (Zehntner), which reduce perennial pests by about 30%. The main purpose of this experiment is to further screen for new pesticides that have significant control effects on soybean aphids but have no obvious killing effect on natural enemies in order to achieve the purpose of protecting and using pests and natural enemies to maintain the ecological balance of soybean fields, Produce consequences of evil.