Selection Method And Function Of Insect - Proof Netting How To Choose And Buy Suitable Anti Insect Netting
- Insect net shaped like a window screen, with tensile strength, anti-ultraviolet, heat resistance, water resistance, corrosion resistance, aging resistance and other properties, non-toxic and tasteless, the service life is generally 4-6 years, up to 10 years.It has both the advantages of the sunshade net, and overcome the shortcomings of the sunshade net, worthy of vigorous promotion.
· Greenhouse greenhouse installed insect net is very necessary, it can rise up the role of the quartet: effective insect control.After covering the insect control net, basically can be exempted from a variety of pests such as cabbage insects, plutella xyloides, aphids.
· The agricultural products covered with insect control net can effectively avoid the harm of various pests such as cabbage insect, diamondback moth, cabbage night moth, twig night moth, yellow treetop jumping beetle, ape leaf insect, aphid and so on.According to the test, the insect control net is 94-97% effective against cabbage cabbage, diamondback moth, cowpea moth, cowpea moth, and American leaf miner, and 90% effective against aphids.
· It prevents disease.The spread of the virus can have disastrous consequences for greenhouse cultivation, especially for aphids.However, the greenhouse cut off the transmission route of pests after the installation of insect net, greatly reducing the incidence of viral disease, prevention effect of about 80%.
Adjust the temperature, soil temperature and humidity.In the hot season, insect nets with white cover greenhouses, test show that the hot July and August, in 25 eyes white insect nets, morning and evening temperatures and open flat, around noon 1 ℃ lower than outdoor and sunny day.Early spring 3-4 months, insect nets cover relative 1-2 ℃ higher than the outdoor air temperature and ground temperature is higher than outdoor 0.5 5 cm - 1 ℃, can effectively prevent the frost.In addition, insect net can prevent part of the rain into the shed, reduce the field humidity, reduce the incidence, sunny days can reduce the moisture evaporation in the greenhouse.
