Pear tree aboveground management methods
Pest control: High humidity can easily lead to the occurrence of diseases such as meteorites, and it is necessary to control pesticides in time after the rain. The commonly used agents are 80% of "Mose M-45" 800-1000 times, 70% of thiophanate-methyl 1000-fold, 12.5% ​​of diniconazole 2000-fold, 200-fold of lime-fold Bordeaux mixture (without bagging use). Insect pests mainly include Tenebrio molitor, Pyrosphaeridae, and the like, and the types of medicaments can be 10% imidacloprid 4000 times, 1.8% Qishensu 4000-6000 times, and 10% cypermethrin 1500 times. However, attention should be paid to the alternate use of pesticides to prevent pests from developing drug resistance and to reduce control effects. Pruning on the tree: First, cut down the overlying shoots or overly dense shoots that grow after the heads fall and the big branches retract, and take care of the space left by the size of the new shoots, so that the whole plant leaves are evenly illuminated. In order to prevent the sun from causing sunburn on the exposed center stem or main branch, it is appropriate to leave part of it slightly and pick it up at 15-20 cm to control its growth and promote flower bud formation. It is necessary to eliminate the competing new shoots under the main branch to ensure the advantages of the extended head.
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