Pepper rotten fruit prevention and treatment symptomatic
2019-12-07 13:05:03
At present, in the rainy season, affected by the high temperature and humidity conditions, the production of pepper vegetables (including greenhouses and open air) in the result period is seriously affected, and there are also many other causes of rot, fruit drop and other phenomena. For this phenomenon, the author consulted the vegetable experts in Shouguang City. According to analysis, spicy (sweet) pepper rot fruit is a common symptom of many diseases, but the source of the disease is different, the symptoms are different, and the prevention and treatment methods are not the same.
Sunburn disease rotten fruit high temperature weather, the sun sunny part of the fruit directly to the skin fades and hardens, resulting in grayish leathery spots, thinning of the diseased surface, pulp tissue necrosis hard. In the later period, it is easily rotted by other pathogens, causing black mold and rot. It should be watered in time to provide a balanced water supply and improve the microclimate in the field.
It is recommended that the vegetable farmer currently picks up two leaves after the twigs are smashed. This will help cool the shade and reduce the incidence of the disease.
Umbilical rot disease fruit rotten fruit umbilical damage, dark green water stain spots and rapid expansion, the disease Department wrinkled, late surface depression. It is often blackened or rotted due to parasitic pathogens. Can be sprayed with 1% superphosphate or 0.1% calcium chloride. In addition, if the disease department becomes dark or rot, it can be combined with control of black mold or soft rot. The reason is mainly due to the high temperature and drought, the lack of supply of soil moisture, the supply of calcium in sweet (sweet) pepper plants is unbalanced, leading to calcium deficiency in fruits. There is also partial application of nitrogen fertilizer, it will also affect the plant's absorption of calcium, resulting in calcium deficiency of the fruit to produce umbilical rot. According to relevant surveys, the disease is prone to occur when the amount of calcium in the soil is below 0.2%.
Soft rot disease rotten fruit was a dark green spot water stains, after the whole fruit soft rot, with bad odor, internal pulp rot, peel white, dry shrink after the fruit is generally hung on the branches, in case of external forces that fall off. Can spray 72% of agricultural streptomycin or 50% DT fungicide or 40% of streptomycin sulfate soluble powder or can kill or Garrinone and other agents, once in 7 days, and even spray 2 or 3 times. In addition, cotton bollworm, tobacco budworm, and wind and rain are the vectors for disease transmission. It is necessary to use the pyrethroid pesticides to spray and kill insect pests in time and take measures to prevent rain.
Most of the rotten fruits were infected from the pedicles first, and were stained with spots of grayish green. They quickly turned brown and soft rot. In wet weather, a sparse layer of white mold grows on the surface, and the diseased fruit does not shrink. Other parts of the stem, such as stalks, often water spots brown spots. At present, there are many epidemics of pepper production at the seedling stage. Please pay attention to the prevention and control of vegetable farmers. Can spray 64% antivirus and 55% Rhizoctonia mixture (15kg water, 30g each), or 58% metalaxyl manganese or 69% ank manganese or 60% zinc manganese fluoride , 7 days and then spray 2 to 3 times.
Botrytis cinerea and sclerotinia rotten fruit Botrytis cinerea and pepper are more common, brownish watery spots appear on the top or peduncle of young fruit, and after the depression is rot, dark brown, and gray mold layer appears on the surface. Sclerotinia developed from the stalk to the whole fruit, showing watery rot, light grayish brown, and other parts have similar symptoms. Most of these two diseases occur during the period of low temperature and high humidity in winter, but in the summer, the cultivation of spicy (sweet) pepper occasionally occurs when it is even cloudy.
Shelter cultivation can be combined with the use of fast smoke smoke agent. The open-air cultivation can be sprayed with sclerotin, sclerotia net or 50% sucrose and 70% thiophanate-methyl mixed solution (15 kilograms of both drugs in water plus 15 grams each), or 40% sclerotia net and 50% puffed sea Because of the mixture (15 kg each of the two drugs plus 15 grams), the onset of the disease was sprayed for 5 days and sprayed 2 or 3 times.
Anthracnose fruit is susceptible to disease when it turns red. The water spot was yellowish-brown with round spots, and the center was gray-brown with a slightly raised concentric ring pattern, often with dark spots. When wet, the surface of the lesion often overflows with red viscous material; when dry, the diseased part shrinks and forms a film, which easily breaks to expose the seed. The leaves were infected with chlorotic spots beginning with water stains, followed by brown edges and light gray patches in the middle. Optional spray Chlorothalonil, the new million, the best effect of the new million, 7 days, and even spray 2 to 3 times.
The fruit of rotten rot is damaged and rots, and when the humidity is high, a large amount of white mold is born. Can spray 50% DT fungicide or 14% ammonia solution copper, 7 days, and even spray 2 or 3 times.
Black fungus rotten fruit The disease generally begins at the top of the disease, and some start from the fruit surface, the color of the initial disease department becomes lighter. The fruit surface gradually shrinks, accompanied by a green mold layer, which occurs most often when the fruit is ripe or mature. Can spray 50% DT fungicide 500 times or 58% metalaxyl manganese zinc 400 times, 7 days, and even spray 2 or 3 times.
Sunburn disease rotten fruit high temperature weather, the sun sunny part of the fruit directly to the skin fades and hardens, resulting in grayish leathery spots, thinning of the diseased surface, pulp tissue necrosis hard. In the later period, it is easily rotted by other pathogens, causing black mold and rot. It should be watered in time to provide a balanced water supply and improve the microclimate in the field.
It is recommended that the vegetable farmer currently picks up two leaves after the twigs are smashed. This will help cool the shade and reduce the incidence of the disease.
Umbilical rot disease fruit rotten fruit umbilical damage, dark green water stain spots and rapid expansion, the disease Department wrinkled, late surface depression. It is often blackened or rotted due to parasitic pathogens. Can be sprayed with 1% superphosphate or 0.1% calcium chloride. In addition, if the disease department becomes dark or rot, it can be combined with control of black mold or soft rot. The reason is mainly due to the high temperature and drought, the lack of supply of soil moisture, the supply of calcium in sweet (sweet) pepper plants is unbalanced, leading to calcium deficiency in fruits. There is also partial application of nitrogen fertilizer, it will also affect the plant's absorption of calcium, resulting in calcium deficiency of the fruit to produce umbilical rot. According to relevant surveys, the disease is prone to occur when the amount of calcium in the soil is below 0.2%.
Soft rot disease rotten fruit was a dark green spot water stains, after the whole fruit soft rot, with bad odor, internal pulp rot, peel white, dry shrink after the fruit is generally hung on the branches, in case of external forces that fall off. Can spray 72% of agricultural streptomycin or 50% DT fungicide or 40% of streptomycin sulfate soluble powder or can kill or Garrinone and other agents, once in 7 days, and even spray 2 or 3 times. In addition, cotton bollworm, tobacco budworm, and wind and rain are the vectors for disease transmission. It is necessary to use the pyrethroid pesticides to spray and kill insect pests in time and take measures to prevent rain.
Most of the rotten fruits were infected from the pedicles first, and were stained with spots of grayish green. They quickly turned brown and soft rot. In wet weather, a sparse layer of white mold grows on the surface, and the diseased fruit does not shrink. Other parts of the stem, such as stalks, often water spots brown spots. At present, there are many epidemics of pepper production at the seedling stage. Please pay attention to the prevention and control of vegetable farmers. Can spray 64% antivirus and 55% Rhizoctonia mixture (15kg water, 30g each), or 58% metalaxyl manganese or 69% ank manganese or 60% zinc manganese fluoride , 7 days and then spray 2 to 3 times.
Botrytis cinerea and sclerotinia rotten fruit Botrytis cinerea and pepper are more common, brownish watery spots appear on the top or peduncle of young fruit, and after the depression is rot, dark brown, and gray mold layer appears on the surface. Sclerotinia developed from the stalk to the whole fruit, showing watery rot, light grayish brown, and other parts have similar symptoms. Most of these two diseases occur during the period of low temperature and high humidity in winter, but in the summer, the cultivation of spicy (sweet) pepper occasionally occurs when it is even cloudy.
Shelter cultivation can be combined with the use of fast smoke smoke agent. The open-air cultivation can be sprayed with sclerotin, sclerotia net or 50% sucrose and 70% thiophanate-methyl mixed solution (15 kilograms of both drugs in water plus 15 grams each), or 40% sclerotia net and 50% puffed sea Because of the mixture (15 kg each of the two drugs plus 15 grams), the onset of the disease was sprayed for 5 days and sprayed 2 or 3 times.
Anthracnose fruit is susceptible to disease when it turns red. The water spot was yellowish-brown with round spots, and the center was gray-brown with a slightly raised concentric ring pattern, often with dark spots. When wet, the surface of the lesion often overflows with red viscous material; when dry, the diseased part shrinks and forms a film, which easily breaks to expose the seed. The leaves were infected with chlorotic spots beginning with water stains, followed by brown edges and light gray patches in the middle. Optional spray Chlorothalonil, the new million, the best effect of the new million, 7 days, and even spray 2 to 3 times.
The fruit of rotten rot is damaged and rots, and when the humidity is high, a large amount of white mold is born. Can spray 50% DT fungicide or 14% ammonia solution copper, 7 days, and even spray 2 or 3 times.
Black fungus rotten fruit The disease generally begins at the top of the disease, and some start from the fruit surface, the color of the initial disease department becomes lighter. The fruit surface gradually shrinks, accompanied by a green mold layer, which occurs most often when the fruit is ripe or mature. Can spray 50% DT fungicide 500 times or 58% metalaxyl manganese zinc 400 times, 7 days, and even spray 2 or 3 times.
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