不同生物制剂对油橄榄叶部病害防治试验

Prevention Test of Different Biological Agents on Olive Leaf Disease

油橄榄叶部病害的发病高峰期在4～6月份。试验用春雷霉素、嘧啶核苷类抗菌素、异菌脲、多粘类芽孢杆菌4种生物制剂相应浓度梯度的药液对其进行防治。结果表明：单次施药10 d后多粘类芽孢杆菌2 000～3 000倍液防治效果达到67.21%,异菌脲1 500倍液防治效果为59.02%,防治效果均超过50%,可作为速效药剂施用;2次施药10 d后异菌脲1 000倍液、多粘类芽孢杆菌2 000倍液防治效果达到71.95%,说明这2种生物制剂可以多次施用达到长期防治目的。

The crest-time of olive leaf disease in April to June. The experiment with different concentrations of kasugamycin, pyrimidine nucleoside antibiotics, iprodione and paenibacillus polymyxa prevented and treated cycloconiun oleaginumcast. The result showed that： 10 days after the firest application, sprayed with 2 000 and 3 000 times liquid of paenibacillus polymyxa, the death rate reached 67.21%, and sprayed with 1 500 times liquid of iprodione,the death rate reached 59.02%, control effects were over 50%, can be used as available pesticide application; 10 days after the second application, sprayed with 1 000 times liquid of iprodione and 2 000 times liquid of paenibacillus polymyxa, the death rate reached 71.95%. These two kinds of biological agents can apply for many times to achieve long-term prevention.