How to manage the pear after pollination?

Pear flower after management is the key period of annual management, this period comprehensive management measures are appropriate, directly affect the fruit rate and fruit quality. The main points of management is the period of pear:
A pear, pollination generally open in the morning after 8 day, flowers can be pollinated flowers, the best third days 1~2 days of pollination, pollination and fruit setting rate is very low. The open flower, anther is pink, second rim of some anthers due to rupture of the powder, became dark brown, almost all the third days of anther become dark brown, on this flower, because of wilting discoloration, no stigma pollination. 1, pollination: suitable for pollination trees accounted for more than 20% of the whole park configuration of a uniform orchard, before the flowering of bees, usually 10 acres of a box of bees. 2, the tank will hang pollination: pollination varieties xuehuali pear cut branches, inserted in the bottle, hanging in the upper part of the main varieties of pear tree, each 2~3, the more the better spray effect.
Two, blooming flower period boron spray 350~400 times liquid spray borax plus gibberellic acid 15~20ppm in Sheng, can improve the setting rate of 25%~30%, 10 in the morning before or after 4 p.m. the effect is good.
Between a week three, fruit thinning flower, fruit, small part of malformed fruit and axillary flower and fruit all thinning away; then according to the distance of fruit, pear by 20 centimeters a fruit, a fruit 30~35 cm in Sydney; finally in May 20th before the completion of the selection, a big, fruit shape correct, good location of pear leave, excess thinning out. Fruit, pear trees 2/3 double fruits, 1/3 fruit; peripheral in the upper part of double fruits, the fruit. Sydney all fruit, double fruits in fruit less part. Fruit tree in general, should pay attention to in order to stay 1~2 fruit, pear fruit order, second order fruit sydney.
Four, fruit bagging after thinning in late April to early May for. Bagging before spraying bactericide, with pyrethroid insecticides 2000 times mildothane 1500 times as well as the spraying liquid, with bagging. The fruit bag can choose 50 grams of single black bag. In the long term storage available 40 grams of black bag. After the fruit with wire clamping tight. After bagging to strengthen management.
Five, after the flower is a variety of insect pest control breeding, the peak, amount and concentration, the main pear scab, canker, pear Psylla, Janus Piri and other pests. At 1 weeks after the available mildothane 1000 times and 1500 times the peach heart net snacks first control; two weeks after the prevention of scab available NuStar 8000 times or 2000 times with domestic diniconazole insecticidal star 2000 times liquid second times with 1500~2000 times a mite control.

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