Integrated control of pests and diseases after planting cucumber in protected area

First, timely removal of disease, insect leaves and diseases, insects, removal of seriously ill plants, brought out deep buried or burned.

Second, water and fertilizer management

1. Watering: 3 days after planting, choose a sunny day at noon to pour a slow seedling water, cucumber root melon sit at the end of the seedlings, pour a larger amount of water, and then pour twice in 10 days. Water is poured in 4 to 6 days.

2. Topdressing: From colonization to harvesting, topdressing 8 to 10 times. In addition to planting and slowing down the seedlings and root melons, each of them is chased once, and the rest are topdressed in the harvesting period. Each time, 10-15 kg of ammonium sulfate or 1000 kg of human excrement per acre is used, and the fertilizer is used alternately with human excrement. .

3. Foliar topdressing: When the season is ripe, the leaves can be sprayed with 0.2% urea and 0.5% potassium dihydrogen phosphate.

4. Applying gas: Apply carbon dioxide in the greenhouse and greenhouse for half an hour after sunrise in the morning. The concentration reaches 800-1500ppm.

Third, chemical control

It is preferred to use the dust method and the smoke method to prevent pests and diseases. In dry and sunny weather, it can also be sprayed and controlled, pay attention to rotation and medication, and mix properly.

1. Downy mildew: use 5% chlorothalonil dust or 5% gram of dew dust, spray 1 kg per acre, sprayer; use 45% chlorothalonil aerosol, 100-180 grams per acre, split 5 to 6 places, lit up in the open night in the evening, smoked once every 7 days, even smoked 3 times.

2. Bacterial angular plaque: use 50% succinated copper WP WP 400-500 times or 77% can kill WP 500 times or 72% agricultural streptomycin soluble powder 4000 times spray Spray once every 3 to 5 days and spray continuously for 2 to 3 times.

3. Anthracnose: use 600 ~ 800 times solution of anthrax fumei or 70% of sensible manganese WP WP 600 ~ 800 times or 58% metalaxyl Mn - Zn wettable powder 500 ~ 600 times liquid spray. Spray once every 7 to 10 days and spray continuously for 2 to 3 times.

4. Powdery mildew: spray with 15% powder rust WP 1500 times, a total of 2 times; or use 27% high-fat film emulsion 70-140 times liquid spray stem and leaf protection, 7-10 days spray once, a total of 3 ~ 4 times; or 500 times with baking soda, spray once every 3 days, spray 4 to 5 times in a row.

5. Fusarium wilt: use 70% thiophanate-methyl WP 800-1000 times solution or 50% carbendazim WP 800-1000 times solution or 50% carbendazim WP 500 times or 10% double Effective water agent 300 times liquid irrigation root, each plant filling liquid 0.25 ~ 0.5 kg, re-irrigation once every 10 days, even irrigation 2 ~ 3 times, such as adding biochemical fulvic acid in the liquid, the control effect will be significantly improved .

6. Bacterial blight: Spray with 75% chlorothalonil WP 600 times or 70% mancozeb WP 500 times, spray once every 5 to 7 days, and spray 2 to 3 times.

7. Gray mold: use 6.5% carbendazim dust, 1 kg per acre, spray spray, spray once every 7 days, even spray 2 to 3 times; also use 50% Nonprofit WP 1500 times or 65 % of the methicillin WP 800 to 1500 times spray, spray once every 5 to 7 days, even spray 2 times.

Qianxi County Agricultural Animal Husbandry and Fishery Bureau

Excerpt from:2007.01.30.6 version of "Hebei Science and Technology News"
【Comment】 【Print this article】 【Close this page】 【Large, medium and small】

Folding Knife

Folding Knife,Blade Folding Knife,Pocket Folding Knife,Clip Point Folding Knife

Shangqiu Yida Measure Tools Co., Ltd , https://www.hnyidatool.com