摘要
河南省自1987年开始在孟县、卢氏等县265亩苹果园中进行生物药剂治疗苹果树腐烂病的试验示范。以刮皮法和划刻法用农抗120、S-921和843康复剂涂抹病疤,一年后在发病季节调查。以刮皮法用农抗120处理的病疤,治愈率达100％,无一复发。以划刻法用农抗120处理的病疤治愈率为78-90％,以S-921和843康复剂处理的治疗效果达100％。作者认为这些生物药剂可取代福美砷治疗苹果树腐烂病。
Field experiments on the control of apple canker with four bio-fungicides were conducted from 1987 to 1989 in 17.7 ha of apple orchards in three counties of Henan Province. The bio-fungicides were Agricultural Antibiotic 120, S-921, and Agroantibiotic 843. The infested apple tree bark was scraped or cut before treatment, then the spot was smeared with a particular bio-fungicide. The control effect (recovery rate) of Antibiotic 120 with scrapping method was 100%, with no reinfestation, and that with the cutting method was 78-90%. Treatments with S-921 and Agroantibiotic 843 also received 100% control effect. It is believed that the commonly used chemical fungicide Asometa can be replaced with the three bio-fungicides in apple canker control.
关键词
苹果树
腐烂病
生物药剂
防治
Agricultural Antibiotic 120 apple canker Valsa ceratosperma plant disease
