Today, Huinong.com has compiled a question for everyone in greenhouse cultivation. There are many common diseases in greenhouse cucumbers. Do you know what is the highest incidence of cucumber in greenhouse? The following mainly talk about the technical points of comprehensive control of cucumber bacterial wilt in greenhouse.
Cucumber bacterial wilt is a soil-borne disease with a long incubation period. Through the root dipping into the vascular bundle, its secretion will block the water supply vascular bundle. When the temperature reaches a certain height, the cucumber quickly enters the fruit expansion period, the root system is weak, the water absorption function is reduced, and the leaf transpiration consumes a large amount of water. Once the temperature in the shed reaches 50 °C, the leaves will be seriously dehydrated and an acute, irreversible wilting occurs. The film has withered and died.
First, the prevention strategy
1. Based on biological control. Combined with the ground-breaking Schonogau microbial agent "Keiko" or "Shilibang" to prevent soil-borne diseases; combined with the root water, the roots of the Kono microbial agent "position", targeted prevention of vine Diseases and other types of bacterial wilt; foliar spray of Kono microbial agents "position", all-round killing caused the pathogen of bacterial wilt.
2. Chemical control. Select "Ming Runfeng" (pyrazol + tebuconazole) to quickly kill the bacterial wilt pathogen and control the spread of bacterial wilt.
3. The root dressing is used for conditioning to enhance the resistance of the cucumber. Apply “Running Wan No. 1†once every 3-5 days.
4. Use physical measures to cool down.
(1) Uncovering the film to cool down;
(2) During the high temperature period, the water spray in the shed is cooled;
(3) Clearing the ditch and collecting the deep ditch of about 15 cm to prevent water accumulation in the field, increase soil permeability and ensure root activity.
Second, the three steps of prevention
1. It is preferred to remove all cucumbers from the affected area;
2. Take measures to cool down and replenish water;
3. Conduct comprehensive drug control and nutritional conditioning.
Third, comprehensive control formula recommended
1. Prevention and control of bacterial wilt (and prevention of downy mildew):
Position water agent 200g (or powder 200 times) + Ming Runfeng 15g + Run Wanwu No. 1 30g / barrel of water
2. Formula for controlling downy mildew special effects:
(1) Mingzan 20g+Run Wanwu No.1 30g
(2) Mingzan 20g+Lachangjin 20g+Biyi or Bijian 1-2g
3. Spray interval:
(1) Chemical pesticides are generally about 15 days;
(2) Nutritional conditioning (water-soluble fertilizer + regulator) once every 3-5 days.
The above is all the content of today. If your greenhouse cucumber has also got this disease, then come to Hui Nong. Learn how to prevent it. Note that the drug selection mentioned in the article is for reference only and is not recommended!
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