Control Efficacy of Several Mixed Fungicides on Cucumber Target Leaf Spot
Xing Guang-yao
Abstract
Xing Guang-yao
Abstract
For more effective prevention and control of cucumber target leaf spot(Corynespora cassiicola),we studied the control efficacy of several mixed insecticides against the disease.The results showed that the mixed fungicides were safe to cucumber,and had no bad effect on cucumber growth.The treatment 4% tetraconazole emulsion in water(EW)+25% prochloraz EW possessed the highest control efficiency of 94.02%,the following were 40% isoprothiolane wettable powder+25% prochloraz EW and 10% difenoconazole microemulsion+25% prochloraz EW,and both of their efficiency was above 90%,so the three mixed fungicides could be used to control cucumber target leaf spot.
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For more effective prevention and control of cucumber target leaf spot(Corynespora cassiicola),we studied the control efficacy of several mixed insecticides against the disease.The results showed that the mixed fungicides were safe to cucumber,and had no bad effect on cucumber growth.The treatment 4% tetraconazole emulsion in water(EW)+25% prochloraz EW possessed the highest control efficiency of 94.02%,the following were 40% isoprothiolane wettable powder+25% prochloraz EW and 10% difenoconazole microemulsion+25% prochloraz EW,and both of their efficiency was above 90%,so the three mixed fungicides could be used to control cucumber target leaf spot.
Key concepts: Fungicide, Corynespora cassiicola, Wettable powder, Horticulture, Biology, Leaf spot, Chemical control, Pesticide