矿物油在柑桔主要害虫无公害防治中的应用

经测定矿物油对桔全爪螨、锈壁虱、矢尖蚧、蚜虫和潜叶蛾防效均好。但嫩梢期、现蕾至开花期及果实采收前100d内不能使用。建议花后用于防治桔全爪螨和第1代矢尖蚧。用于加工的品种可1a使用1～2次矿物油，多使用几年即可增加天敌的数量，控制主要害虫(螨)的为害。由于其特殊的杀虫机理及对环境和人畜天敌的安全性，可以作为柑桔固无公害防治的首选药剂。

POLLUTION-FREE USE OF SUNSPRAY OILS FOR CONTROLLING MAIN PESTS OF CITRUS

Sunspray oils (7 E and 9 E) gave satisfactory results in controlling Panonychus citri Mog, Phyllocopta oleivora Ash-mead , Unaspis yanonensis (Kuwana), Toxoptera citricidus and Phyllocnistis citrelle Stainton when foliar sprayed onto citrus trees. However, they should not be used in the periods of current-shoot growth and from flower-budding to blooming and the 100 days before fruit harvest. They are recommended for the control of P. citri Mog and the first generation of U. yanonensis. For varieties for processing, two sprays of Sunspray oils seemed desirable. Sunspray oil treatments in successive years helped increase the number of the natural enemies of insect pests and mites and the damage caused by the pests were brought under control. Owing to their special mechanism of insect control and their security to human beings and domestic animal, Sunspray oils should be given priority in pollution control of pests in citrus orchards.