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研究探明了山东省苹果主产区土壤、灌溉水和果品中农药、重金属等有害物质的污染状况 ,明确了保护利用和释放天敌、果实套袋以及高效生物制剂和低毒化学农药对苹果主要病虫害的防治效果以及常用杀虫剂对捕食性天敌瓢虫、草蛉的杀伤力
The study identified the main producing areas of apple in Shandong Province soil, irrigation water and fruit pesticides, heavy metals and other harmful substances in pollution status, clear protection and utilization of natural enemies, bagging and efficient biological agents and low toxicity of pesticides on apple mainly Prevention and control of pests and diseases as well as the lethality of common insecticides on predatory ladybugs and weeds