Nanshui pear is resistant to black star disease and rotiferosis, and its main pests and diseases are black spot, mealworm, pear psylllid, pear small heartworm, etc. In mid-March, spray 5 degree stone sulfur mixture during the bud germination period, and spray fungicides and insecticides every half month or so after germination. In the spring spring in early July, the use of polyoxycyanine (polyantimycin) 60 times to prevent and treat black spot has a special effect. Specific pests and diseases are timely controlled according to the situation of orchards, and attention should be paid to the rotation of pesticides.
