Apricot sprouts and blossoms are earlier than other stonefruit trees, second only to mountain peaches. Apricot trees generally bloom in northern China from the end of March to mid-April, and their flowering time varies according to species and environmental conditions. Prevention of late-flowering apricot trees is earlier than the flowering period and is vulnerable to early spring frost. When the flower was frozen, it was water-stained and the petals discolored and fell off. When weather forecast frost comes, apricot gardens that are vulnerable to late frost before and after flowering season can be protected by a smoked method. Use fresh green pigments and acupuncture NH-snow to spray on flower buds during the expansive period. The whole tree is sprayed with 1% lime water in early spring, which can postpone the flowering period by 5-7 days to avoid the late frost period. Reducing the canopy 1 month before flowering and flowering, spraying 1% urea or 20 mg/kg gibberellic acid twice a day on the tree crown can compensate for tree nutrient deficiencies and reduce the rate of abortion. Spraying 0.2% of borax and 0.2% of urea for 1 to 3 times during the flowering period, flowering the bee or carrying out artificial pollination for 2 to 3 times will help increase the fruit setting rate. Prevention and control of insect pest 1 before flowering prevention and treatment of gum disease, the wound smear 5 degrees lime sulfur or crystal lime sulfur 30 times. 2 Spray phoxim on the underside of the tree before flowering. One kilogram of phoxim to 200 kg of water per mu was used to control the almond bees. 3 For the prevention and control of peach aphid, peach whitefly and other pests, the trunk can be applied at flowering. It is usually applied by 2 to 5 times the paste of monocrotophos and cellulose and coated with plastic paper. After flowering, it can be sprayed with 10% imidacloprid 2000 times to control red spider, apricot aphid, apricot tiger, apricot spot moth and so on. 4 Spray 70% thiophanate-methyl or 50% carbendazim 800 times after flowering to prevent apricot disease. 5 Spray 25% diflubenzuron 1500 times after flowering to prevent leaf miners and leaf roller moths. The overwintering larvae of the winter beetle infestation of the winter beetle were brushed with a brush from late April to early May.
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