【摘要】 食蚜绒螨是蚜虫的重要天敌,对果树蚜虫的控制效果前人尚无深入研究。笔者在徐州市果树站试验基地的多年试验发现,在长期进行无公害综合防治的果园,早期蚜虫不需用药防治,依靠绒螨和瓢虫等天敌的联合作用就能将其控制在经济阈值以内熏而常规防治园需喷2次药。更多还原

【Abstract】 Phytoseiidae is the importance natural enemy of Aphis citricola von der Goot.There are no deep research in the controlling effects of it on the Aphis citricola von der Goot.Through long-time trial in Xuzhou city.We finds Aphis citricola von der Goot don’t need to use agrochemical prevention and cure on earlier period in the Pollution-free orchard.It will be keeped within a accepted level by the combination effection of natural enemy such as Phytoseiidae and Coccinella septempunctta L.Then the normal regulations orchard needs spray 2 times agrochemical.更多还原