How to prevent and cure the white rust of asparagus?
How to prevent and cure the white rust of asparagus? Please advise: 1. Practice rotation with other vegetable varieties for 2 to 3 years. Second, before sowing, seed dressing and sterilization shall be carried out according to the proportion of 100kg seeds 300g and 35% metalaxyl; third, at the initial stage of the disease, 6000 to 7000 times solution of 50% nail cream copper wettable powder, or 8000 times solution of 72.2% pric water agent, can be sprayed once every 7 to 10 days. To infect again. Rain Water and insects can also spread, but whether seeds can be spread remains to be studied. Cool and wet at night, warm during the day, heavy fog, and the condition of sticky and wet soil is conducive to the occurrence and prevalence of the disease. 3. Control methods (1) choose disease-free seeds and seed treatment: select disease-free land to keep seeds, soak the newly bought seeds in 50 ℃ warm water for 25 minutes, cool and sow. (2) to strengthen the management of garden fields: select plots with high terrain, good drainage and ventilation for planting. Apply enough fertilizer and increase the application of phosphorus and potassium fertilizer. Irrigate properly so as not to make the green onion floor too wet. If you find a diseased plant, remove it and bury it in time. After harvest, the disease and residue were thoroughly removed, concentrated treatment, and deep ploughing was carried out to reduce the source of bacteria. (3) Chemical control: spray at the initial stage of the disease, once every 7-10 days, 3-4 times in succession. The commonly used agents are 1240,300 Bordeaux solution, 40% aluminum ethyl phosphate wettable powder 200300 times, 25% metalaxyl wettable powder 1000 times, 75% chlorothalonil wettable powder 500,600 times, 65% Dysen zinc wettable powder 500700 times, 64% poison alum, M8 wettable powder 500x. 66.5% Pulic water agent 700-1000 times. Click to get more asparagus planting techniques click to get more vegetable planting techniques
- Prev
Growing asparagus in plastic greenhouse
What should we pay attention to when growing asparagus? Ipomoea aquatica, also known as Ipomoea aquatica, Ipomoea angustifolia and Ipomoea aquatica, is an annual or perennial vine of the family Spirulaceae. Asparagus is eaten with tender stems and leaves. Asparagus has a long harvest time and is a leaf vegetable growing in summer, which can make up for the market structure of less-leaf vegetables and more fruit vegetables in summer in Liaoning Province. ...
- Next
How to prevent and cure white rust of asparagus?
How to prevent and cure white rust of asparagus? Please advise one is to practice rotation with other vegetable varieties for 2 to 3 years. Second, before sowing, seed sterilization was carried out according to the proportion of 100kg seeds, 300g and 35% metalaxyl; third, at the initial stage of the disease, 6000 to 7000 times of 50% nail cream copper wettable powder was used, or 72.2% pric water was used.
Related
- Where is it suitable to grow horseradish in China? it is expected to see the middle altitude horseradish in Alishan.
- How to prevent tomato virus disease reasonably? (Control methods included)
- Many people like to plant towel gourd on the balcony. What are the main points of this method and management?
- What crops can chili peppers be mixed with?
- Fertilization techniques and matters needing attention in Tomato
- What are the grafting techniques for peach seedlings in spring?
- Harm and control methods of root swelling disease of Chinese cabbage
- What are the pests of sweet potatoes? How to prevent and cure it?
- Symptoms, causes and Control methods of navel Rot in Tomato
- The cause of "Cucumber rotten bibcock" in Farmers' planting Cucumber and its Control Plan