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近几年,我县黄花菜受锈病危害严重,过去使用的敌锈钠不能控制。1984年试用15%粉锈宁可湿性粉剂取得了良好的效果。 试验方法是用15%粉锈宁可湿性粉剂加水配成300、500、600、800、1000倍液,每亩喷150斤,3次重复,喷清水为对照。分3次施药:第一次,锈病始见期(黄花初苔期);第二次,锈病流行盛期(初蕾期);第三次,锈病流行高峰期(黄花始摘期)。每次相距10天。每次施药后3、5、8天进行药效调查,主要观察记载夏孢子堆发展情况。 实地考察证明:15%粉锈宁可湿性粉剂是防治黄花菜锈病的理想药剂,药后8天的防效为40—85%,平均73%,药后20天的防效为73—92%,平均85%;药后30天后防
In recent years, my county lily by the serious endangering of rust, the enemy used in the past can not control the rust sodium. 1984 trial 15% triadimencin WP made good results. The test method is to use 15% triadimen wettable powder and water to form 300,500,600,800,1000 times, spraying 150 pounds per mu, 3 times repeated, spraying water as a control. The first time, the first period of rust (early yellow flowering period); the second, the peak of rust epidemic (early bud); the third, the peak of the epidemic of rust (yellow flower abstraction period). 10 days apart. 3, 5, 8 days after each drug efficacy survey, the main observation records of the development of uredospores. Field study showed that 15% of the powderyzine WP was the ideal medicament for preventing and controlling the rust of Daylily. The control effect was 40-85% after 8 days of treatment, with an average of 73%. The control effect of 20 days after the drug was 73-92% 85%; Anti-drug after 30 days