First, pest control
It mainly controls red and white spiders, leaf miners, leaf roller moths, aphids, and early deciduous diseases. Prevention of red and white spiders with 1.8% schizophyllan 5,000 times, alone to control red spider use Acarus, green cyclone and other acaricides, the most effective agent for the prevention and control of leaf miner is diflubenzuron 3, control tipping leaf roller moth available Chrysanthemums such as chrysanthemum, beta cypermethrin, control of aphids use imidacloprid and other agents.
Second, top dressing
Each tree chases 50 grams of urea, 50 grams of potassium dihydrogen phosphate, digs 5-10 centimeters around the trunk from 30 to 40 centimeters, or digs 6-8 pits of the same depth or 3-5 times around the small tree. Radial small ditch, after the application of fertilizer into the soil, and then see the rainfall situation, such as the drought should be timely watering. Spray 300 times urea or 300 times more potassium dihydrogen phosphate on the tree every 10 days. Recently, 300 times more urea was added in combination with medication.
Third, the tree management
1. Cut out new shoots less than 50 cm from the ground.
2. When the length of the center tip exceeds 60-70 centimeters, picking up the heart (pick tip) aims to promote the development of the lateral tip.
3. The treatment of the second tip (ie, the competitive branch) under the center of the shoot takes softening of the branch and sprains the other branches to change the growth direction, weaken the basic growth, and promote the healthy growth of the center tip. Up to 7-8, can eliminate the second bud.
4. If the central tip is skewed or the small tree does not grow upright, a pole should be set up next to the small tree and tied with a rope to the center tip or small tree to straighten and straighten.
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