姜伟龙 发表于 2019-5-21 21:23:22

前几天果树叶子还正常,这两天叶子

前几天果树叶子还正常,这两天叶子成这样了,是缺什么肥料还是得了什么病?
https://appimg.guoyetong.com/pic/20190521/1558444989665746_419.jpg?x-oss-process=image/watermark,image_cGljLzIwMTcxMjA4L29zc18xNTEyNzAzODUyMTUwXzUzMl83NjJfNTQ1LnBuZw==,t_50,g_se,x_20,y_20
https://appimg.guoyetong.com/pic/20190521/1558444989774744_472.jpg?x-oss-process=image/watermark,image_cGljLzIwMTcxMjA4L29zc18xNTEyNzAzODUyMTUwXzUzMl83NjJfNTQ1LnBuZw==,t_50,g_se,x_20,y_20
https://appimg.guoyetong.com/pic/20190521/1558444990097371_59.jpg?x-oss-process=image/watermark,image_cGljLzIwMTcxMjA4L29zc18xNTEyNzAzODUyMTUwXzUzMl83NjJfNTQ1LnBuZw==,t_50,g_se,x_20,y_20

白泉好运来 发表于 2020-8-1 14:33:59

是不是最近高温多雨季节引起的

aaa牟光辉 发表于 2020-8-2 05:56:22

真菌病害疱斑病可以用异菌脲或者多抗霉素或者井冈密甘素或者春雷霉素或者吡唑醚菌酯等等防治。
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