First, the type of prevention:
1. Disinfection and sterilization: fumigation is carried out before planting or 7 to 10 days before sowing. Generally, for every 100 cubic meters of greenhouse space, 0.75 grams of sulfur powder and 1.50 grams of dry sawdust are used. Stir the two and divide them into several piles, then put them into the pots separately and place them evenly in the protective ground. In the evening, close the skylight and the shed film, and put the flower pot into the shed. Those who smoke cigarettes should start to ignite the mixture of sulfur sawdust from the end away from the shed door, and walk toward the door while the smoke agent is finished, quickly retreat to the door, close the shed door, and fumigate for 1 night (not less than 6 Hours), the second day of the morning, the wind is released, and the harmful gas is discharged.
2, pest control: According to the control object, choose a fumigant, in the evening, closed the membrane. In the greenhouse, the fumigant is divided into 4 to 7 piles. In the small arch shed, the anti-smoke agents are divided into 7 to 10 piles (both in terms of 1 mu area). The smoke point is 30 cm away from the vegetable crop, and the fuming agent is ignited with a dark fire (fragrance or cigarette). When the smoked agent is finished, the smoker will retreat to the outside of the shed, close the shed door, and fumigate, and the fumigation time is not less than 3 hours.
Second, the type of common smoker:
1. Succeeding smoker: The active ingredient content is 10%.
For controlling cucumber gray mold, sclerotinia, etc., tomato early blight, gray mold, sclerotinia, leaf mold, etc., eggplant gray mold, amaranth gray mold, celery sclerotinia, pepper gray mold, Sclerotinia and so on. In the early stage of the disease, 0.20 ~ 0.30 kg per acre chamber, smoked once every 7 to 10 days, even smoked 2 to 3 times.
2, chlorothalonil fuming agent: the effective ingredient content of 45%, each time the greenhouse is used 0.20 ~ 0.25 kg, the effective ingredient content of 10%, 0.25 ~ 0.30 kg per mu greenhouse. For the control of cucumber downy mildew, black spot disease, gray mold, anthracnose, leaf spot, powdery mildew, etc., capsicum sclerotium, amaranth gray mold, celery spot blight, leaf spot and so on. Before the onset or at the beginning of the onset, smoke once every 7 to 10 days, even smoke 2 to 3 times.
3, insecticidal fuming agent: 22% dichlorvos fuming agent, 0.30 kg per mu of greenhouses; killing melon smoked fumigant, 10% dichlorvos fumigant, 10% antimony fumigant, 10% cyanide The pyrethroid fumigant is 0.40 to 0.50 kg per acre chamber. It is used to control pests such as aphids and whitefly. It is used when the pest is first developed, and is smoked once every 5 to 7 days. The occurrence of optozoa is even 2 to 3 times.
1. Disinfection and sterilization: fumigation is carried out before planting or 7 to 10 days before sowing. Generally, for every 100 cubic meters of greenhouse space, 0.75 grams of sulfur powder and 1.50 grams of dry sawdust are used. Stir the two and divide them into several piles, then put them into the pots separately and place them evenly in the protective ground. In the evening, close the skylight and the shed film, and put the flower pot into the shed. Those who smoke cigarettes should start to ignite the mixture of sulfur sawdust from the end away from the shed door, and walk toward the door while the smoke agent is finished, quickly retreat to the door, close the shed door, and fumigate for 1 night (not less than 6 Hours), the second day of the morning, the wind is released, and the harmful gas is discharged.
2, pest control: According to the control object, choose a fumigant, in the evening, closed the membrane. In the greenhouse, the fumigant is divided into 4 to 7 piles. In the small arch shed, the anti-smoke agents are divided into 7 to 10 piles (both in terms of 1 mu area). The smoke point is 30 cm away from the vegetable crop, and the fuming agent is ignited with a dark fire (fragrance or cigarette). When the smoked agent is finished, the smoker will retreat to the outside of the shed, close the shed door, and fumigate, and the fumigation time is not less than 3 hours.
Second, the type of common smoker:
1. Succeeding smoker: The active ingredient content is 10%.
For controlling cucumber gray mold, sclerotinia, etc., tomato early blight, gray mold, sclerotinia, leaf mold, etc., eggplant gray mold, amaranth gray mold, celery sclerotinia, pepper gray mold, Sclerotinia and so on. In the early stage of the disease, 0.20 ~ 0.30 kg per acre chamber, smoked once every 7 to 10 days, even smoked 2 to 3 times.
2, chlorothalonil fuming agent: the effective ingredient content of 45%, each time the greenhouse is used 0.20 ~ 0.25 kg, the effective ingredient content of 10%, 0.25 ~ 0.30 kg per mu greenhouse. For the control of cucumber downy mildew, black spot disease, gray mold, anthracnose, leaf spot, powdery mildew, etc., capsicum sclerotium, amaranth gray mold, celery spot blight, leaf spot and so on. Before the onset or at the beginning of the onset, smoke once every 7 to 10 days, even smoke 2 to 3 times.
3, insecticidal fuming agent: 22% dichlorvos fuming agent, 0.30 kg per mu of greenhouses; killing melon smoked fumigant, 10% dichlorvos fumigant, 10% antimony fumigant, 10% cyanide The pyrethroid fumigant is 0.40 to 0.50 kg per acre chamber. It is used to control pests such as aphids and whitefly. It is used when the pest is first developed, and is smoked once every 5 to 7 days. The occurrence of optozoa is even 2 to 3 times.
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