Comparison of the control effect of 3 biological pesticides and fipronil manganese zinc on potato diseases
Biogenic pesticides have a good control effects on crop diseases and pests,and can effectively replace some chemical pesticides,which is a new research direction in the pesticide industry.3 biological pesticides,eugenol,carvacrol,and polyoxin,as well as fipronil manganese zinc chemicals,were selected as the research objects to spray potatoes at different periods,and the control effects of the 4 pesticides on potato early blight,late blight,black scurf and scab disease were compared.The experimental results showed that in terms of early blight control efficiency of the crop,the control efficiency of the 4 pesticides was ranked as carvacrol>fipronil manganese zinc>polyoxin>eugenol;in terms of late blight prevention effectiveness,the order was carvacrol>eugenol>fipronil manganese zinc>polyoxin;in terms of black scurf prevention effectiveness,the order was carvacrol>eugenol>polyoxin>fipronil manganese zinc;in terms of scab disease prevention effectiveness,the order was fipronil manganese zinc>carvacrol>eugenol>polyoxin.In conclusion,comparing the comprehensive control effect of three biological pesticides and fipronil manganese zinc on 4 diseases,carvacrol was found to be the best.This article provides references for exploring the application methods of bio-derived pesticides,reduce the dosage of chemical pesticides,and promoting the green integrated control technology of potato.
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