Three methods for preventing and controlling tobacco mites

Bemisia tabaci is commonly known as "small white moth". It is a common vegetable disease . It is common in areas where peppers, tomatoes and other vegetables are grown. What are the methods for controlling whitefly? More specifically The following options.

1. Chemical control:

Tobacco meal has a serious overlap in generations. When using chemical control, it must be applied continuously and repeatedly to improve the control effect.

Commonly used agents are: 10% chlorpyrifos 1000 times solution, 10% imidacloprid 1500 times, 1.8% avermectin 3000 times, 20% acetamiprid 3000 times solution, 10% guanidinamine 1000 times solution, etc. Spray on the back of the leaves and continue to control 2-3 times.

2. Physical control:

(1) Bemisia tabaci has a strong tendency to orange-yellow, and can be made by using a yellow cardboard on the yellow cardboard to prevent it.

(2) Insect net coverage. During the seedling cultivation of vegetables, it is covered with insect-proof nets to block the damage of the whitefly into the seedbed.

3. Agricultural control:

(1) Cultivate insect-free seedlings, seedlings for seedlings, and avoid cotton, cruciferous (cauliflower), Solanaceae, leguminous and other tobacco powders in the surrounding areas, preferably using insect-proof nets;

(2) timely and thoroughly remove the weeds in the field during the production process and during the replacement, especially before transplanting, to remove the weeds in the fields and surrounding areas in order to effectively reduce the source of insects;

(3) Re-emergence plots are implemented with crop rims and crops that are not preferred by onions, garlic, leeks and other tobacco powders to reduce the amount of population.

More pesticide knowledge, please pay attention to pesticide network

Refrigeration Pressure Regulator

Pressure Regulator is commonly used in the refrigerant cycle to control the low and high pressure sides of the system under varying load conditions, there are 4 types, pls see below.

1. Evaporator Pressure Regulator
2. Condensing Pressure Regulator
3. Crankcase Pressure Regulator
4. Receiver Pressure Regulator

Crankcase Pressure Regulator, Condensing Pressure Regulator, Evaporator Pressure Regulator, Receiver Pressure Regulator

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