Insect net is a new type of material to prevent pests in field vegetables. The anti-insect net not only has the function of shading, but also has the function of anti-insect. It is mainly used for the nursery and cultivation of vegetables such as cabbage, cabbage heart, summer radish, cabbage, cauliflower, solanaceous fruit, melons, beans, etc. in summer and autumn, which can improve the emergence rate, seedling rate and seedling quality.
After the soil is disinfected, the previous crops are harvested, and the residues and weeds of the previous crops are removed from the field in time and burned together. 10 days before the construction of the shed, flood the vegetable plot with water for 7 days, drown the eggs and aerobic pathogens of the surface and underground pests, then drain the standing water, let the sun be exposed to the sun for 2-3 days, and spray the whole field for sterilization. insect. At the same time, the anti-insect net should be compacted and sealed to prevent pests from sneaking into and laying eggs.
When the small arch canopy is covered and cultivated, the arch canopy should be higher than the crop to avoid the vegetable leaves close to the insect-proof net, so as to prevent the yellow striped beetle outside the net from feeding on the vegetable leaves and laying eggs on the vegetable leaves.
installation method
(1) Cover the anti-insect net directly on the large shelf, press tightly around with soil or bricks, fasten the net with a film thread, and use it in conjunction with a film thread and a film roll, and leave the front door uncovered.
(2) Use bamboo or steel bars to bend into a small arch frame, insert it on the surface of the field, cover the arch frame with the insect-proof net, and directly pour the net on the net after watering. .
(3) Use horizontal scaffolding to cover. Folding and covering the growth period of the insect net shading less, and there is no need to uncover the cover day and night or uncover the front cover afterwards. It should be covered throughout the entire process to prevent pests from invading in order to receive a satisfactory pest control effect.
Scope of application
① Leafy vegetables are cultivated with insect-proof nets. Leafy vegetables are the vegetables that urban and rural residents like to eat in summer and autumn. They have the characteristics of fast growth and short cycle. However, there are many pests in open field production and serious pesticide pollution, so the citizens dare not eat it. The use of insect nets to cover cultivation can greatly reduce pesticide pollution.
② Solanaceous fruits and melons are covered with insect-proof net for cultivation. Solanaceous fruits and melons are prone to virus diseases in summer and autumn. After the application of insect nets, the path of aphids transmission is cut off and the harm of virus diseases is reduced.
③ Nursery seedlings. June to August each year is the season for growing vegetable seedlings in autumn and winter. It is also a period of high humidity, heavy rain, and frequent pests, making it difficult to raise seedlings. After using the insect-proof net, the vegetable seedling rate is high, the seedling rate is high, and the seedling quality is good, thus winning the initiative of autumn and winter vegetable production.