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How to treat pear embroidery disease?
Hello! Pear rust, also known as pear scab, macular disease and sheep beard disease, overwinters in pine and cypress diseases. In April of spring, it attacks the tender leaves, new buds and young fruits of pear trees with the wind and rain. When pear buds germinate and young leaves begin to spread, if the weather is rainy and the temperature is suitable for winter spore germination, the disease will be serious.

Prevention and control methods:

1. Clear pines and cypresses from the pear orchard within 5km. If it can't be removed, pine and cypress should be sprayed with 3 ~ 5 Baume sulfur mixture L ~ 2 times before pear trees germinate every spring to eliminate overwintering bacteria.

2. Apply pesticides within 25 days after pear trees germinate and bloom. If there is much rain, spray 1 time before flowering and 1 time l ~ 2 times after flowering. Medicament: 25% triadimefon powder or emulsion 3000 ~ 4000 times L ~ 2 times. After June, spray 65,438+0: 2: 240 Bordeaux mixture, and spray 65,438+0 times every L5 ~ 20 days for 3 ~ 4 consecutive times.