Seven kinds of germicides were tested in the control of cucumber downy milden.The result proved 52.5% of Equation WG 1 500 times,72.2% preuicur WG 800 and 64% sandofan WP 1 000 had the marked effect on control of cucumber downy mildew and,while 1 time application/six days for total of 3 times was as the treatment measure before disease occurrence,the prevention effect was above 85%.
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