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试验表明 ,30 %多·烯可湿性粉剂对梨黑星病具有较好的防效 ,使用安全。防治适期以梨黑星病发病初期为宜 ,重发年份应在发病盛期施药 3次以上。使用浓度以 10 0 0～ 15 0 0倍为宜。为防止病菌产生抗药性 ,应与其他作用机制不同的药剂交替使用
Tests showed that 30% of multi-ene WP wet pear scab has good control effect, safe to use. Preventing and controlling pears scab is suitable in the early stage of disease, and relapse years should be spraying more than 3 times in the peak stage of disease. Use the concentration of 10 0 ~ 15 0 0 times is appropriate. In order to prevent the bacteria from developing drug resistance, it should be used interchangeably with other drugs with different mechanism of action