The pests that injure Myrica rubra are mainly pine caterpillars, escargots, and leaf roller moths. In general, the larvae hatch in April and May. The growth characteristics and control methods are briefly described as follows: 1. Dendrolimus punctatus damages a variety of forest trees and its newly hatched larvae cluster The new shoots damaged the young leaves, and they were dispersed and eaten one week later. In severe cases, only leaves and veins remained in the leaves. The pine caterpillars occurred in one generation in one year, and hatched larvae in about the first half of April, and on the middle and middle months of May in the middle of May. Control methods: 1 The newly hatched larvae should be killed in time, or be sprayed with 90% trichlorfon 1000-1300 times or 80% dichlorvos 1000-1300 times; 2 adult phototaxis strong, but also light trapping. 2. Avoidance of debt evasion and pest evasion mainly damage the young shoots of bayberry. 1 generation occurred in 1 year. The mature larvae were used for wintering in the protective sac. In April of the following year, they were pupaed. In early May, the adult eclosion occurred. The females spawned in the protective sac and hatched the larvae in late May. Make a new bag together and start eating. Control methods: larvae use trichlorfon or dichlorvos spray. 3. Leafroller leafroller larvae endanger the leaves of bayberry, and the young shoots are silked and wrapped in leaves, and the larvae are wounded and eaten in the middle of the leaf and larvae. Control methods: It is found that the hazard can be sprayed by 50% to kill 1000 times of Pinus sylvestris, or 20% of phytosterol (quick kill to kill D) by 4000 times.
Our Rubber & Plastic Products is good in quality and competitive in price. We are manufacturer and supplier Rubber & Plastic Products following your specific requirement. We are looking forward to your E-mail and establishing cooperative relationship with you! We would provide professional Rubber & Plastic with good services for you!
Rubber & Plastic
Breast Reliever, Hot Water Bag with Cover, Ear Syringe Ball, Hot Water Bags
Ningbo Cland Medical Instruments Co., Ltd. , https://www.ruipumedical.com