Prevention of pepper rotten fruit

Sunburn disease rotten fruit high temperature weather, the sun sunny part of the fruit directly to make the peel fade and harden, resulting in grayish leathery spots, the thinning of the diseased surface, pulp tissue necrosis hard. In the later period, it is easily infected by other germs, causing black mold and rot. It should be watered in time to provide a balanced water supply and improve the microclimate in the field. In the pruning when appropriate to leave two leaves and then picking up the heart, so as to play the role of shade cooling, reduce disease occurrence.

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. 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. In addition, partial application of nitrogen fertilizer, will also affect the plant's absorption of calcium, resulting in calcium deficiency in the fruit produce umbilical rot. Surveys show that when the soil contains less than 0.2% calcium, the disease is prone to occur. Can be sprayed with 1% calcium superphosphate solution or 0.1% calcium chloride solution. In addition, if the disease department becomes dark or rot, it can be combined with control of black mold or soft rot.

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 Garinong and other agents, spray once every 7 days, and even spray 2 or 3 times.

Most of the rotten fruits were infected from the pedicles and were stained with grayish-green spots. 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. Pay attention to strengthening prevention and control. Can spray 64% antivirus and 55% Rhizoctonia mixture (15kg water, 30g for each of the two agents), or 58% metalaxyl manganese or 69% ank manganese or 60% zinc manganese fluoride Wait, spray once every 7 days, and spray 2 or 3 times.


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