In the process of planting peach trees, the resistance of peach trees is relatively weak, and it is more vulnerable to aphids, red spiders, and beetles in the process of growth. It is also prone to brown spot, leaf shrinkage, and trunk gum disease. Wait. If it is not controlled, it will affect the formation of flower buds and weaken the tree potential. The following small series for you to share the peach tree pests and diseases, how to prevent and control peach trees pests and diseases.
First, the dormant period (from early December to early March)
The main work in this period is to clear the garden, eliminate wintering pests and diseases, and reduce the pests and diseases in the second year.
Control method: Cut off the branches, diseased branches and dead fruits on the tree, and remove the ground branches, fallen leaves, weeds, diseased fruits and diseased branches. Scrape the rot and disease and the old skin of the branches, and apply the protection of the "General Tree Protector". The whole park sprayed a “tree generalâ€, mainly for rot, brown rot and scale insects.
Second, before germination to flowering (from mid-March to early April)
At this stage, it mainly controls peach perforation, leaf shrinkage, and aphids.
Control method: Spray with 25% deltamethrin 500 times + bactericide , the effect is good. In order to prevent the disease and pests from causing the tree to weaken, the nutrient supply is not available. Before the flowering, the young fruit period and the fruit expansion period, the “Guaguo Zilingling†+ 0.3% urea + 0.3% potassium dihydrogen phosphate is applied. If you increase the fruit set rate.
Third, the new shoot growth period (from mid-April to early May)
Mainly control brown rot, perforation, anthracnose, mites, pear small heartworm, leaf curler, leaf miner, red spider.
Control method: remove the damaged new shoots in time, concentrate on burning, and eliminate the small larvae of pears. Use "new high fat film" + 72% agricultural streptomycin 3000 times plus 0.5% avermectin 3000 times spray.
4. Young fruit growth and development period (mid-May to early June)
This period is the first adult adult stage of P. sinensis, and it is the adult stage of P. variabilis. The prevention and control of spraying is the key.
Control method: 40% Fuxing 8000 times plus 20% worm 1200 times plus borocalcium 1200 times for prevention and treatment.
V. Maturity of early maturing varieties (mid-June to early July)
This period is the second generation adult stage of P. sinensis, and the hatching larvae begin to harm the fruit, which is the focus of spraying prevention. In addition, brown rot, perforation, scab, red spider, peach aphid, leaf miner, aphid, and scale insect also cause damage to peach trees.
Control method: Pharmacy selection is 1200 times that of 70% atropine and 8000 times of 20% avermectin.
6. Mature period of mid-maturing varieties (mid-July to early August)
This period is the third generation adult stage of P. sinensis, which is the first adult stage of P. variabilis. Spray control is the key. Brown rot, perforation, anthracnose, cotton bollworm, peach aphid, and red spider continue to be harmful.
Control method: use 70% Daisen zinc, 600 times plus 5% hexaflumuron 2000 times or 3% avermectin 700 times plus 90% Wanling powder 3000 times to control pests and diseases.
7. Mature period of late-maturing varieties (from mid-August to early October)
Continue to control brown rot, anthracnose, leaf miner, pear small heartworm, peach aphid, spider mites, and mites.
Control method: 2, 70% of the 1200 times of the 1200 times plus 22% of the 1200 times and 1200 times of the Kangfubao
Eight, after harvesting to dormant period (mid-October to December)
Focus on the prevention and treatment of peach tree perforation and gum disease.
Control method: After the fruit is harvested, the whole garden will be sprayed once with the “Guardian General†+ stone sulfur mixture for disinfection and prevention of perforation. For the peach tree gum disease, scrape the glue and apply the "tree guard general" to eradicate the flow glue.
Other precautions: The tip of the peach tree has many long growths, peaks and multiple secondary shoots. Therefore, timely pruning in the autumn, it is more important to create good ventilation and light transmission conditions than other tree species. The wound caused by pruning is closed with a "callus anti-corrosion film" to prevent dry cracking. In addition, in the dormant period, use a cone needle to tie two rows of holes in the tender body of the tree body or the lower part of the main branch, and then use the brush ring to brush "Zhuhuawang No. 1" to effectively control the growth of new shoots, promote flowers, save nutrition, and improve Fruiting rate.
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