Smoke agents, also known as smoke agents and aerosols, are widely used as a pesticide formulation in vegetable production areas. It consists of pesticides, heat generators, oxidizers, dispersants and other ingredients that are formulated using special processes. The use of smoke agents to control pests and diseases of vegetables in greenhouses and greenhouses has been widely popularized and popularized in recent years, and has become an important pest control technology.
1, the characteristics of smoke pesticides
High temperatures, high humidity, and pests and diseases are the characteristics of greenhouse vegetables. The use of suitable smoke agents for smoke prevention and control does not require water sources and special equipment. It is simple to use, easy to carry, and saves time and labor. It is suitable for closed small environments such as greenhouses, greenhouses, and warehouses. After igniting the smoke agent, it left the booth and closed the doors and windows. The smog filled the space. Pesticide particles slowly and evenly settled on the surfaces of plants, racks, etc., and penetrated into the pores of the soil. Therefore, the distribution of the active ingredients of the pesticide was more uniform than that of the conventional spray and the control was more effective. Thoroughly avoiding the waste of pesticides caused by conventional sprays. Because the use of smoke agent can save a lot of labor and equipment costs, it can greatly reduce the cost of production. In addition, the smoke agents are mostly used in the evening and play a role at night, which does not affect the agricultural operations. Therefore, they are very popular among farmers.
2, smoke agent species
At present, the common types of smoke agents commonly used in the market are chlorothalonil smoke agent, chlorothalonil smoke bomb, gray mold smoke agent, smoker smoke agent, quick-silver smoke agent, and carbendazim smoke agent. (Siklyl and chlorothalonil complex preparations), mothionine smoke agent, anti-virus smoke agent, epidemic net smoke agent, Heixinging smoke agent, thiabendazole smoke agent, each smoke agent can Formulated varieties with different active ingredient content are selected for use in production and prevent different types of diseases. Dichlorvos are also used for the control of certain pests.
3, control range
The range of prevention and control of fumigants is limited, and it is generally used only for prevention and control of common diseases and insect pests on greenhouse vegetables, such as downy mildew, early blight, late blight, epidemic disease, gray mold, blight, damping off, and anthrax. Diseases, Sclerotinia, Scab and Aphids, Greenhouse Whitefly, etc. It is worth noting that due to the content of active ingredients and dosage forms, most smoke products cannot be directly used on small arched greenhouse vegetables to avoid phytotoxicity.
4, use methods and precautions
4.1 Conditions of use
The principle of the role of the smoke agent pesticide is that the active ingredient uses the smoke as the carrier to reach the target through diffusion and infiltration, and the smoke has a strong drift and diffusion. Therefore, the use of the smoke agent requires a strict enclosed environment, and the film of the chamber cannot be damaged. Holes, close doors and windows, otherwise it will affect the control effect.
4.2 Application time
The amount of smoke particles attached to the surface of the plant affects the control effect. When the sun shines at noon on sunny days, the surface of the plants is relatively dry, and the surface temperature is the same as that of the smoke particles, and the smoke is not easily deposited. Therefore, the application of the smoke agent is preferably performed after sunset in the evening. At this time, the surface of the plant is moist, easy to adhere to particles, and does not occupy agricultural time. In addition, rainy days and snow days can be used as usual without affecting the results.
4.3 Application Methods
According to the area and space used, determine the amount of application, multi-point deployment, distribution should be uniform, and use wire, bricks, stones and other (ie, wooden blocks, bamboo sticks) as a stent, the smoke agent 20-50 cm away from the ground At high altitudes, they should be ignited in order from the inside to the outside, and they should be careful to blow out the open flame and make them smoke normally. Close the doors and windows of the shed immediately after the completion of the point, and after the first day of full ventilation, the agricultural operation can be performed. Do not ventilate after 4-6 hours of rapid airtight application after spraying on a rainy day.
4.4 Application amount
The amount of application was determined according to the size of the indoor space in the shed, the degree of occurrence of pests and diseases, and the content of active ingredients of the smoke agent. Under normal circumstances, a common amount of smoke agent once 0.3-0.4 g/m3, equivalent to 300-400 g per 667 square meters of tobacco smoke. The prevention and treatment of diseases should be started in the early stage of disease, generally once every 7-10 days, 2-3 times in a row; pest control should be applied in the initial stage to facilitate early control. When the occurrence of serious diseases or insect pests or poor sealing of the greenhouse, the use of drugs may be increased or the application interval may be shortened. Such as control greenhouse cucumber downy mildew, disease, tomato early blight, late blight, gray mold, etc., can choose 45% chlorothalonil smoke agent or 15% carbendazim smoke agent, each time 667 square meters of medication 200-250 Grams; to control cucumber powdery mildew can use 15% Keziling smoke agent, 250 grams per 667 square meters of medication; control of sclerotial disease can choose to use 10% fast Ke Ling smoke or 15% Ke Yan Ling smoke agent, each time 250-300 grams per 667 square meters of medication; prevention and control of botrytis gray mold, cucumber gray mold, can use 15% procymidone smoke or 45% chlorothalonil smoke agent, 200-250 grams per 667 square meters of medication, Or 3.3% thiabendazole (Tecdo) smoke agent 350 grams per 667 square meters of medication; control of aphids, leaf miner, greenhouse whitefly, etc., can use 22% dichlorvos smoke agent, each time every 667 square meters of medication 300-400 grams.
The production of smoke agent can be used alone, but in order to delay the emergence of pathogens and insect pest resistance, improve the control effect, and promote the use of smoke and dust, spray method alternately. Pay attention to smoke pesticides during storage should pay attention to fire prevention and prevent spontaneous combustion.
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3. Coloration: 80%-85% and up, color type seperated with blush or strip, smooth and bright skin
4.Origin: Shandong province of China
a) Inner packing: With tray, foam net and plastic bag
b) Outer packing:
10kg/ctn: size 28/32/36/40/44/50/56;
20kg/ctn: size 64/72/80/88/100/113/125/138/150/163/175/198;
c) according to clients' special requirements.
6. Supply Period: October to next August
a) 10kgs/ctn: 2156ctns/40' HR
b) 20kgs/ctn: 1106ctns/40' HR
8. Transporting and storing temperature: 0Â°C
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