Talking about the selection requirements of vegetable insect-proof net

The vegetable insect-proof net of China Insect Protection Net not only has the function of shading, but also has the function of preventing insects. It is a new type of material to prevent pests on vegetables in the field. Mainly used in summer and autumn pakchoi, Chinese cabbage, summer radish, cabbage, cauliflower, solanaceous fruit, melons, beans and other vegetables seedlings and cultivation, can improve the emergence rate, seedling rate and seedling quality.

In order to achieve the desired purpose, the following requirements should be followed when selecting vegetable insect-proof nets.

(1) Density

The density of the insect screen is usually expressed by the number of meshes, that is, the number of holes per square inch. According to the types and sizes of the main pests of greenhouse crops, the suitable mesh number of the greenhouse insect net is 20 mesh to 50 mesh, and the specific mesh number should be selected and designed according to the type and size of the main pests.

(2) Select according to the characteristics of pests

Choose the type of anti-insect net according to the length of time the crop is infested by insects and the type of insects. If the crop is only exposed to pests for a short period of time, you can choose a lightweight, easy-to-declare insect-proof net; if the crop suffers from different insects in different periods, you should choose the corresponding number of insect-proof nets according to the characteristics of small pests.

(3) Strength

The strength of vegetable anti-insect nets is related to the materials used, weaving methods and the size of the holes. The strength of metal nets is higher than that of anti-insect nets made of other materials, and the anti-insect nets should have certain wind resistance.

(4) Specifications

The product width series are 800mm, 1000mm, 1100mm, 1600mm, 1900mm, 2500mm, etc. The specific specifications of the width and length of the product can also be negotiated between the supplier and the user.

(5) Service life

Insect nets made of polyethylene, polypropylene, nylon and other materials should have a certain degree of anti-aging ability, and their service life should not be less than 3 years under the conditions of using according to the product instructions.

(6) Color

The color of the insect screen should be mainly white and colorless and transparent, and it can also be black or silver gray. White and colorless insect nets have good light transmittance, black insect nets have good shading effect, and silver gray insect nets have good aphid avoidance.

(7) Material

The materials used to make the insect-proof nets of Building Net Factory should have the ability of moisture-proof, corrosion-resistant, anti-ultraviolet and anti-aging, and should comply with the relevant regulations of the national material standards.