First, the main diseases of autumn cabbage
1. Cabbage downy mildew: Polygonal or irregular shaped lesions appear on the diseased leaves, white mold on the back, and yellow leaves on heavy leaves.
Control method: In the early stage of the disease, spray 25% metalaxyl WP 800 times liquid, or 75% chlorothalonil WP, 70% mancoze WP, 64% antivirus WP WP 400-500 times Liquid, or 40% ethyl aluminum phosphate wettable powder 200-300 times solution.
2, cabbage virus disease: onset, the leaves appear mosaic, shrinkage, necrotic spots, streaking dwarf and other symptoms, from the seedling stage to the core period can be susceptible. In particular, 6-7 leaves of seedlings are sensitive to the disease.
Control method: In the early stage of the disease, spray 20% virus A wettable powder 500 times liquid or 15% phytopathogenic emulsion 1000 times liquid, spray once every 10 days, even spray 2-3 times.
3, cabbage soft rot: generally invaded by the roots of the vegetable roots, initially water-stained, then enlarged and turned into light brown, the tissue is soft and rot, with a foul smell.
Control method: In the early stage of the disease, spray 100-150PPM agricultural streptomycin, spray once every 7-10 days, even spray 2-3 times. Or spray 3000 times solution of neomycin.
Second, the main diseases of radish
1, radish virus disease: generally expressed as mosaic, shrinkage and deformity, the main control methods are to select resistant varieties and timely control of aphids.
2, radish soft rot: diseased leaves are water-stained, the center of the root is stained with white soft rot, there is a foul smell, often brown juice oozing. The control method refers to cabbage soft rot.
Third, the main disease of late cabbage
1. Cabbage black rot: The leaf spot or yellow vein is caused by the onset of adult stage, and the leaf spot develops inward from the leaf edge to form a “V†shaped yellow-brown spot. Black veins, roots rot incidence cortex, vascular black dry rot.
Control methods: with non cruciferous vegetables 2--3 as rings; seed disinfection, 50 deg.] C or 20 minutes water Soaking 55 ℃ 10 minutes before sowing seed soaking water, or in 55% methylene-bis-fu amount of 0.4% by seed dressing .
2, cabbage soft rot: constant outer leaves of cabbage leaves or water-soaked spots appear ball base, an outer leaf wilting noon and evening recovery, and thus decay base leaves the ball, as a dirty white sludge, bad smell.
The basic control methods and cabbage soft rot same.
1. Cabbage downy mildew: Polygonal or irregular shaped lesions appear on the diseased leaves, white mold on the back, and yellow leaves on heavy leaves.
Control method: In the early stage of the disease, spray 25% metalaxyl WP 800 times liquid, or 75% chlorothalonil WP, 70% mancoze WP, 64% antivirus WP WP 400-500 times Liquid, or 40% ethyl aluminum phosphate wettable powder 200-300 times solution.
2, cabbage virus disease: onset, the leaves appear mosaic, shrinkage, necrotic spots, streaking dwarf and other symptoms, from the seedling stage to the core period can be susceptible. In particular, 6-7 leaves of seedlings are sensitive to the disease.
Control method: In the early stage of the disease, spray 20% virus A wettable powder 500 times liquid or 15% phytopathogenic emulsion 1000 times liquid, spray once every 10 days, even spray 2-3 times.
3, cabbage soft rot: generally invaded by the roots of the vegetable roots, initially water-stained, then enlarged and turned into light brown, the tissue is soft and rot, with a foul smell.
Control method: In the early stage of the disease, spray 100-150PPM agricultural streptomycin, spray once every 7-10 days, even spray 2-3 times. Or spray 3000 times solution of neomycin.
Second, the main diseases of radish
1, radish virus disease: generally expressed as mosaic, shrinkage and deformity, the main control methods are to select resistant varieties and timely control of aphids.
2, radish soft rot: diseased leaves are water-stained, the center of the root is stained with white soft rot, there is a foul smell, often brown juice oozing. The control method refers to cabbage soft rot.
Third, the main disease of late cabbage
1. Cabbage black rot: The leaf spot or yellow vein is caused by the onset of adult stage, and the leaf spot develops inward from the leaf edge to form a “V†shaped yellow-brown spot. Black veins, roots rot incidence cortex, vascular black dry rot.
Control methods: with non cruciferous vegetables 2--3 as rings; seed disinfection, 50 deg.] C or 20 minutes water Soaking 55 ℃ 10 minutes before sowing seed soaking water, or in 55% methylene-bis-fu amount of 0.4% by seed dressing .
2, cabbage soft rot: constant outer leaves of cabbage leaves or water-soaked spots appear ball base, an outer leaf wilting noon and evening recovery, and thus decay base leaves the ball, as a dirty white sludge, bad smell.
The basic control methods and cabbage soft rot same.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】
With solutions available for over 170 Case excavator models
Case Final Drive,Case Final Drive Assy,Case Travel Motor,Case Travel Gearbox,Case Final Drive Spare Parts,Case Drive Parts,Case Motor.
we are sure to have the Case final drive or travel motor you need.long-standing final drive provider.and 15 month warranty on final drives.
Case Final Drive,Case Final Drive Assy,Case Travel Motor,Case Travel Gearbox,Case Final Drive Spare Parts,Case Drive Parts,Case Motor
Jining Juheng Hydraulic Machinery Co., Ltd. , https://www.sdjuhengmachine.com