(1) Blight is also known as "bad rotten". The pathogen is a kind of fungi in the fungus that harms seeds, seed buds and seedlings. The seeds were rotted and rotted in milky white pulp. The seed buds suffered a dark brown death; the seedlings suffered a pseudo brownish brown stem depression at the base of the pseudo-stem (petel stalk); the seedlings fell and died.
Control methods: (1) Soil disinfection with carbendazim or comfrey liquid before sowing. 2 The diseased plants were found to be removed in a timely manner. Lime powder was applied around the diseased plants and sprayed with 50% thiophanate-methyl 1000-fold solution or 50% methyl-superscripte-dried phosphorus 1000-times solution.
(2) Root rot, also known as "chicken rotten", is a fungus in the fungus, endanger the roots, the roots of the dark brown gradually soft rot gray slurry, there is stench.
Control methods: 1 Select a well-drained land for planting, and drain it in time during the rainy season. 2 Use healthy and disease-free 37 when transplanting. 3 timely removal of diseased plants and disinfection of diseased points with lime. 4 The morbidity period was irrigated with carbendazim 100 times or 50% thiophanate-methyl 1000 times.
(3) The epidemic is also known as "leaving the leaves." The pathogen is a kind of fungal algae, which mainly damages the leaves. The affected leaves are dark green water stains. Severe onset of high temperature and humidity in June-August.
Prevention methods: (1) clean the garden, pick up net litter in winter, and burn them together. (2) Before the onset of disease, spray 1:1:50 Bordeaux mixture, once a half month, 2-3 times in succession, spray 65% ​​on behalf of Zinc 500 times, or 50% on 1000 times, or 500 times liquid, 7 times a day, 2-3 times in a row.
(4) The pathogen of anthracnose is a kind of fungus in the fungus. It damages the upper part of the ground. The lesions on the leaves are yellow-brown and have brown edges. The black spots on the late lesions are easy to perforate; petiole and stem diseases The spot is a yellow-brown prismatic spot with a central depression; the spot on the fruit is a brown spot with a round dimple, and the onset of high temperature and humidity is heavy.
Prevention methods: 1 Clean the past, burn litter in time. 2 Use disease-free Panax pseudoginseng as a seed, soak it with 1:1:200 Bordeaux mixture before transplanting, and dry and transplant. 3 seeds with 100-150 times the 40% formalin leaching l0min washed with water, dry and sowing. 4 In the onset period, spray 65% ​​of dexamethasone 500 times or 50% of excision 1000 times, 7 times a day for 2-3 consecutive times.
(5) The name of the rust soil is "yellow grime" and "jaundice". The pathogen is a kind of basidiomycete in the fungus. It mainly damages the leaves. The edges are not neat and the spores of the germs dissipate yellow powder after it has broken down.
Control methods: 1 cut off the stems and leaves of diseased plants in winter, spray wave beauty 1-2 degrees lime sulfur agent. 2 During the onset of infection, spray 200-300 times of dinitrate or Pomegranate 0.3 degree lime sulfur, or 300 times of diuretic sodium, once every 7 days for 2-3 times.
(6) The pathogen of powdery mildew is a fungus in the fungus, which mainly damages the leaves, and the diseased leaves are covered with grayish white powder.
Control methods: 1 winter garden and cut off the leaves of diseased plants, spray wave beauty 1-2 degrees lime sulfur agent. 2 In the early stage of the disease, the wave is sprayed with 0.3-degree lime sulfur or 50% thiophanate-methyl 1000-fold solution, once every 7 days for 2-3 consecutive times.
(7) Short beard, also known as the fire spider, is a member of the family Arachnididae. The adult nymphs are sucked on the back of the leaves and are brushed and knotted. Yellow leaves and finally fall off. Disk and red fruit cause shrinkage and dryness after being victimized.
Control methods: 1 winter clearing the park, picking up net litter and burning, after clearing the park spray Baume 1 degree lime sulfur agent. In the beginning of 24 months, the United States sprayed 0.2-0.3 degrees lime sulfur or sprayed with 20% trichloric sulfonone wettable powder 1500-2000 times or 25% insecticidal water repellent 500-1000 times, once a week. Several times in a row.
(8) Ground tiger See ginseng prevention and control methods.
(9) Also known as the snail snail or slug, it is a mollusk. Bite seeds, stems and leaves into nicks. Feeding hazards in the evening and early morning.
Control methods: 1 winter sun soil. Two 300-375 kg tea seed cakes were used as base fertilizers per 2 hectares. 3 During the onset period, lime powder or 3% lime water shall be sprayed on the surface.
Control methods: (1) Soil disinfection with carbendazim or comfrey liquid before sowing. 2 The diseased plants were found to be removed in a timely manner. Lime powder was applied around the diseased plants and sprayed with 50% thiophanate-methyl 1000-fold solution or 50% methyl-superscripte-dried phosphorus 1000-times solution.
(2) Root rot, also known as "chicken rotten", is a fungus in the fungus, endanger the roots, the roots of the dark brown gradually soft rot gray slurry, there is stench.
Control methods: 1 Select a well-drained land for planting, and drain it in time during the rainy season. 2 Use healthy and disease-free 37 when transplanting. 3 timely removal of diseased plants and disinfection of diseased points with lime. 4 The morbidity period was irrigated with carbendazim 100 times or 50% thiophanate-methyl 1000 times.
(3) The epidemic is also known as "leaving the leaves." The pathogen is a kind of fungal algae, which mainly damages the leaves. The affected leaves are dark green water stains. Severe onset of high temperature and humidity in June-August.
Prevention methods: (1) clean the garden, pick up net litter in winter, and burn them together. (2) Before the onset of disease, spray 1:1:50 Bordeaux mixture, once a half month, 2-3 times in succession, spray 65% ​​on behalf of Zinc 500 times, or 50% on 1000 times, or 500 times liquid, 7 times a day, 2-3 times in a row.
(4) The pathogen of anthracnose is a kind of fungus in the fungus. It damages the upper part of the ground. The lesions on the leaves are yellow-brown and have brown edges. The black spots on the late lesions are easy to perforate; petiole and stem diseases The spot is a yellow-brown prismatic spot with a central depression; the spot on the fruit is a brown spot with a round dimple, and the onset of high temperature and humidity is heavy.
Prevention methods: 1 Clean the past, burn litter in time. 2 Use disease-free Panax pseudoginseng as a seed, soak it with 1:1:200 Bordeaux mixture before transplanting, and dry and transplant. 3 seeds with 100-150 times the 40% formalin leaching l0min washed with water, dry and sowing. 4 In the onset period, spray 65% ​​of dexamethasone 500 times or 50% of excision 1000 times, 7 times a day for 2-3 consecutive times.
(5) The name of the rust soil is "yellow grime" and "jaundice". The pathogen is a kind of basidiomycete in the fungus. It mainly damages the leaves. The edges are not neat and the spores of the germs dissipate yellow powder after it has broken down.
Control methods: 1 cut off the stems and leaves of diseased plants in winter, spray wave beauty 1-2 degrees lime sulfur agent. 2 During the onset of infection, spray 200-300 times of dinitrate or Pomegranate 0.3 degree lime sulfur, or 300 times of diuretic sodium, once every 7 days for 2-3 times.
(6) The pathogen of powdery mildew is a fungus in the fungus, which mainly damages the leaves, and the diseased leaves are covered with grayish white powder.
Control methods: 1 winter garden and cut off the leaves of diseased plants, spray wave beauty 1-2 degrees lime sulfur agent. 2 In the early stage of the disease, the wave is sprayed with 0.3-degree lime sulfur or 50% thiophanate-methyl 1000-fold solution, once every 7 days for 2-3 consecutive times.
(7) Short beard, also known as the fire spider, is a member of the family Arachnididae. The adult nymphs are sucked on the back of the leaves and are brushed and knotted. Yellow leaves and finally fall off. Disk and red fruit cause shrinkage and dryness after being victimized.
Control methods: 1 winter clearing the park, picking up net litter and burning, after clearing the park spray Baume 1 degree lime sulfur agent. In the beginning of 24 months, the United States sprayed 0.2-0.3 degrees lime sulfur or sprayed with 20% trichloric sulfonone wettable powder 1500-2000 times or 25% insecticidal water repellent 500-1000 times, once a week. Several times in a row.
(8) Ground tiger See ginseng prevention and control methods.
(9) Also known as the snail snail or slug, it is a mollusk. Bite seeds, stems and leaves into nicks. Feeding hazards in the evening and early morning.
Control methods: 1 winter sun soil. Two 300-375 kg tea seed cakes were used as base fertilizers per 2 hectares. 3 During the onset period, lime powder or 3% lime water shall be sprayed on the surface.
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