Scrape bark bark is a good place for persimmon and other pests to overwinter. In the month of January, the rough skin of the persimmon tree can be scraped off (it is not possible to scrape the white skin), and then the whitening agent is applied on the scraping site. When the coating is applied, it should not be lost or dried, and it should not fall off. The proportion of whitening agent is: 10 parts of quicklime, 2 parts of lime sulfur, 1 to 2 parts of salt, 2 parts of clay and 36 to 40 parts of water. Add insecticide. Liquify the lime, filter out the gravel, pour the salt that has been removed, mix with lime sulfur and clay. The overwintering base number of insect pests, such as mud mud, Pakistani kakitos, in the trunk squashing joints of grafted rootstocks (soft dates) is large. Because the soft jujube bark is hard to scrape, it can be applied to the tree trunks with a muddy, thicker mud, and the old mature larvae suffocate in the trees. Digging oocysts and weeds are overwintering in the soil layer within a radius of 30 cm and a depth of 15 cm around the trunk. The eggs are in white oocysts and each oocyst has 40 to 120 eggs, which are easy to identify. After being taken out, it is burned in a centralized manner, or all the soil in this part is moved to the water and drowned, and then replaced with worm-free soil to fill in the cavity. According to the habits of grasshoppers, the raw materials are tied to the base of the newly hatched larvae, and 20 cm wide plastic cloth is tied around the base of the trunk. Use clay on both the top and bottom of the plastic sheet to prevent pests from drilling down. Then mix with 1 part butter and 1 part of engine oil and apply on plastic cloth. The insects can stick when they climb over. Access Control,Access Control System,Fingerprint Scanner Access Control,Contactless Palm Identification Access Control Chongqing Huifan Technology Co., Ltd , https://www.hfsecuritytech.com
Pesticide-infested insects were more likely to be contaminated by buds on the shady side of the tree after they were planted in February. Before the persimmon tree sprouts, it is necessary to spray 75% phoxim emulsion 1000 times, rinsing or spraying, so as to kill pests.