1. Spraying parts <br> When cotton bollworms lay eggs, they are usually produced on the top of cotton plants, on the young leaves of the top of the fruit branches, on the buds and on the leaves. The focus should be sprayed on the top of the cotton plant and on the tender tips, buds and stalks of the fruit branches.
2, spraying time <br> The hatching process of cotton bollworm is white, two days yellow, three days black, four days of hatching. The second day after hatching, the growth point was harmed, and on the fourth day, the young bud was damaged. Most of the cotton bollworms are active in the morning from 8 to 11 am and after 4 pm, and there is very little activity during the high temperature period. The appropriate period of prevention and treatment should be applied after 8 to 11 am and 4 pm after the peak of hatching until most of the eggs become black or hatched. Avoid high temperature application, high temperature application is easy to decompose, not only the operator is easy to poison, but also poor efficacy.
3, alternate medication <br> against continuous use of a pesticide, to prevent the development of resistance to drugs bollworm.
4, the concentration of the drug according to the instructions to prepare the concentration of pesticides, can not be arbitrarily increased or decreased. Increasing the concentration tends to cause phytotoxicity in cotton plants, and reducing the concentration will reduce the efficacy.
5, the amount of liquid medicine <br> If the amount of liquid is small, the cotton plant spraying unevenly, the insect treatment effect is poor. When controlling the second-generation cotton bollworm, the amount of liquid per acre should not be less than 40 kg. When controlling the third and fourth generations of cotton bollworm, the amount of liquid per acre is 80-100 kg. All the cotton plants are evenly treated and the effect is good.
Tubular waterproof lights are waterproof, corrosion-proof and dust-proof. The respirator design quickly balances the pressure difference between the inside and outside of the lamp to prevent water and dust from entering the inside of the lamp to ensure the normal operation of the lamp.
Compared with the traditional waterproof lamp, it is more convenient to install. It only needs to open the orange end cap of the Led Tube Light, thread the wires in, and connect the terminals.
Led Tube Light can not only be linkable in series but also Parallel Connection, as shown in the figure below.
There are two installation methods, one is a sling and the other is ceiling installation. There are two types of ceiling installations, one is fixed and cannot be moved, and the other can be rotated 180°.
IP66 LED Tri-proof Light has emergency and sensing functions, which is very suitable for parking lots, warehouses, basements, workshops, etc.
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