The narrow-necked ginger gecko mainly feeds on the phloem from larvae, and then gradually feeds on the phloem. After it matures, it turns to the xylem and turns on the wormhole. The adults take the pepper leaf to supplement the nutrients, and the damaged trunk is flowed with glue until the bark rots and dries up. Falling off, severely affecting nutrient transport, can lead to yellowing of leaves and even death of entire branches or canopies.
Prevention
1. The clearing of the clear garden should be thoroughly cleaned in winter, and the branches and leaves of the pests should be burned or buried deeply. Spraying 3-5 degrees lime sulfur at the same time can kill the adults and nymphs of the red spider, aphids, and also prevent the prickly ash branches. Diseases, such as leeches, etc.
2, the fine management of reasonable pruning is the premise of the high yield of the pepper tree. Pruning constitutes a certain high-yield tree shape, removes pests and branches in time, and maintains strong tree vigor to achieve the purpose of high quality, high yield, and stable production.
3. Chemical control Before the budding of the prickly ash tree, use 40% omethoate or 48% chlorpyrifos, plus diesel or kerosene, smear the base of the trunk at 1:50. Scrape the fluidized part together with the rotten skin, scrape it to the edge of the good skin, and then apply a layer of rot or rust-proof protective agent.
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