Autumn and winter pest control is very effective. On the one hand, the pests enter the dormant period, the number is limited, they are inactive, and the premises are more concentrated. On the other hand, the fruit trees in the dormant period have strong anti-drug resistance. There are no luxuriant foliage, and the dosage is small, which can be used during the growing season. The high concentration of liquid used.
Clean the pastoral areas to remove litter, rotten fruit, and weeds in or around the orchard, combine dry pruning to cut dry sticks, pests and branches, remove the remaining fruit on the tree, and scrape off the trunk with wire brush or iron scraps. The rough skin, rough skin, diseased skin, concentrated burned or buried deep clean out of the body. Deeply turning the soil early can kill, freeze, dry, and suffocate pathogens and pests in winter. Orchard irrigation in winter can kill the root eggs and reduce the adult emergence rate. Irrigation night freezing is the most appropriate, the amount of water to ensure penetration of 40 cm to 60 cm deep, to maintain soil moisture in the field of maximum water holding capacity of 60% to 80% is appropriate.
The trapping insects use the habits of leaf miners, red spiders, hibiscus, mealybugs, grasshoppers, grasses, etc. to like to overwinter on the grass. In the fall, they hang grass handles on the big branches or trunks of fruit trees, and solve the grass after winter. burn.
Spray 1 agent Baumidu lime sulfur or 45% crystal lime sulfur agent before clearing the garden, spray 4~5 Baume degree lime sulfur or 45% crystal lime sulfur 30~50 after clear garden Double liquid can effectively prevent and treat diseases such as red spider, pear scab, apple rot, grape black pox. Can also be combined with the trunk and large branches of white coating agent, white trunk can prevent frost damage, and has the role of sterilization, pest management.
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