How to manage pear trees in summer? Detailed explanation of key technical points
How to manage pear trees in summer? Here are the methods. Summer is the period of the year when pear trees have the greatest amount of vegetative growth and grow the fastest, and it is also the period when pear trees are most affected by external conditions. Summer management of pear trees can be carried out with reference to the following methods: Soil, fertilizer and water management. Fertilizer and water management. In July, after the early-maturing varieties are harvested...
How to manage pear trees in summer? Here are the methodsSummer is the period of the year when pear trees have the greatest amount of vegetative growth and grow the fastest, and it is also the period when pear trees are most affected by external conditions. Summer management of pear trees can be carried out with reference to the following methods:
Soil, fertilizer and water management
Fertilizer and water management. In July, immediately after the early-maturing varieties are harvested, apply a quick-acting nitrogen fertilizer once, as China Agriculture Network, to supplement the nutrient deficiency in the tree caused by fruiting. For mid- and late-maturing varieties, at this time also apply a topdressing of phosphorus and potassium fertilizers once. In August, generally no more fertilizer is applied; only after the fruit is harvested, apply a topdressing of quick-acting nitrogen fertilizer once. After fertilizing, irrigate appropriately according to soil conditions.
Soil management. In summer, temperatures are high and soil humidity is high, so weeds grow easily. Usually after heavy rain or after irrigation, loosen the soil and hoe weeds in time.
Pest and disease control
Young fruit stage. Mainly control rust disease, scab, ring rot, and pear psylla, pear two-tailed aphid, pear lace bug, and pear fruit moth.
Control measures: (1) Manually remove pest-damaged and diseased shoot tips and diseased shoots, and bury them deeply; (2) Spray 80% Penco 800-fold solution and 30% compound carbendazim 500-fold solution, which can control rust and many other diseases. Spray 10% Jianmie emulsifiable concentrate 2500-3000-fold solution to control pests such as pear fruit moth; when pest infestation is severe, mix in 10% imidacloprid for spraying. Note that Bordeaux mixture should not be used 40 days after fruit set, to prevent fruit russeting.
Fruit enlargement stage and ripening stage. During this period, mainly control scab, ring rot, rust, and fruit moth, pear caterpillar, and rust mite. For disease control, spray 80% Penco 800-fold solution or double-strength Bordeaux mixture 200-fold solution; for pest control, spray 10% Jianmie emulsifiable concentrate 2500-3000-fold solution or 30% Taoxiaoling 200-fold solution.
Summer pruning
The purpose of summer pruning is to control excessive tree vigor, promote flower formation, and improve ventilation and light penetration conditions in the tree. For normally fruiting trees, strictly control densely growing branches and vigorous shoots on the back and outer parts of scaffold branches. Comprehensively apply methods such as pinching, bending shoot tips, thinning branches, and pulling branches to regulate the branch vigor and angle of scaffold branches. To promote flower bud formation the following year, in mid to late May, ring-bark the main and secondary branches or nurse branches of young trees.
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