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波尔多液杀菌剂有成本低、防治范围广、不易被雨水冲刷、残效期长及病菌不易产生抗药性等优点。但在使用中也发现一些问题:如用得过多影响光合作用和果实着色,在平原果园生石灰的来源少以及配制药液较麻烦等。因此,近几年在农药市场上出现“直接对水喷雾的波尔多液”,但效果不理想,并时有药害(烧叶、烧果)发
Bordeaux liquid fungicides have the advantages of low cost, wide range of prevention and control, easy to be washed by rainwater, long residual period and bacteria resistant to antibiotics. However, some problems have also been found in use: if too much is used to affect photosynthesis and fruit coloring, the source of lime in the plain orchards is less and preparation of liquid chemicals is more troublesome and the like. Therefore, in recent years there has been “direct Bordeaux mixture sprayed with water” in the pesticide market, but the effect is not satisfactory and phytotoxicity (burning leaves, burning fruit)