Abs Plastic,Abs Engineering Plastic,Abs Plastic Raw Material,Abs Material JIANGSU SHIHENG CHEMICAL CO., LTD , https://www.shihengpolymer.com
This type of cone is one year old and the overwintering adults move in large quantities in late May and early June. This is the best time for chemical control. The use of ultra-low-level spray of 25 insecticidal and insecticidal superior oils can achieve a pesticidal effect of more than 90%. Airplanes can be sprayed in areas with complex terrain. This is the most ideal agent for large-scale application in a variety of chemical prevention and control. In terms of biological control, it is possible to use the excellent natural enemies of the Pinus sylvestris stalk cone pest, the Quercus mellifera. It is mainly parasitized on the 4th to 5th instar larvae of the weevil, and its natural parasitism rate is up to about 70 intestines. , Collecting the earth fruit containing the larvae of the Quercus mellifera, and protecting it in winter, reducing the overwintering mortality of the Quercus mellifera, and enhancing the inhibition ability of its target A. In addition, the broad-shouldered wasp is the ectoparasitic natural enemies of the 4th instar larvae of Pinus sylvestris, and the natural parasitism rate is about 90 intestine, which needs further research and utilization.
The use of battery-based vibration lamps utilizes the phototaxis of insect pests to kill insect pests and reduce the population of insect pests. This will not only reduce the incidence of insect pests, but also protect the environment. Moreover, the use of chemical pesticides can be reduced, the plant protection measures can be further improved, and the plant protection work can be further improved.
Battery Vibrating Light Extinguishes the Scotch Pine Cone
One of China's more valuable tree species, Pinus sylvestris var. mongolica, has the characteristics of resistance to cold, drought, and infertility. With the increase of its planting area, it has also brought about serious problems of pests and diseases. There are many insect pests of Pinus sylvestris var. Mongolica. Among them, Pinus sylvestris, also known as Pinus sylvestris, is the most serious pest that harms the Pinus sylvestris stalk. Most of the damaged fruit fall off, causing serious reduction of seed production. It is mainly distributed in The natural provenance of Honghuaerji Pinus sylvestris in our district is usually about 40 Pa. Some years have reached 50 or more intestine. In the severely damaged trees, the rate of cone damage is 100 intestines. For a long period of time, the use of chemical pesticides has been used for the prevention and control of insect pests. However, with the deepening of the concept of green environmental protection, measures for green plant protection have also been continuously explored and applied. Among them, the installation and use of battery vibration lamps is an important means of green prevention and control measures.