Recently, some growers have reported that the small black spots appearing on the tomato fruits of greenhouses (pictured) have seriously affected the normal coloration and product quality of the fruits. What is the disease? According to the analysis of the symptoms provided, it should be due to bacterial bacterial spot disease.
Symptoms: The disease is also called bacterial scab. In recent years, the incidence of heavier diseases in the tomato growing areas has increased. The rate of diseased plants is generally about 60%, and the yield loss is as high as 50% to 75%. The disease mainly damages leaves, stems, flowers, petioles and fruits, especially the margins of leaves and immature fruits. When the leaves become infected, they first produce dark brown to black spots on the leaves, often with yellow halos around them; stems and petioles become infected, and diseased parts all produce black spots; young greens become infected and begin to show small bulging spots. When mature, the tissue surrounding the spot remains green for a longer period of time.
Cause of the disease: The pathogen is wintering in seeds, diseased plant residues and soil. It spreads through agricultural operations such as rain splashing or pruning, harvesting, etc. It is conducive to the serious occurrence of the disease under conditions of humid low temperature, rain, and sprinkling.
Control methods: 50% Chlorobisil cyanuric acid wettable powder at the beginning of the disease 750 times solution + 20% copper rosinate emulsifiable concentrate 2000 times solution, 30% ceric chloride copper carboxylate wettable powder 600 times solution +10% diphenyl ether ring Disperse azole water granules 1500 times, 47% spring thunder Wong copper wettable powder 450 times, 14% Luo ammonia copper water agent 300 times, 77% copper hydroxide wettable powder 500 times liquid spray control. The above drugs, pay attention to alternate use.
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Active Pharmaceutical Ingredients(API) refer to the raw materials used in the production of various preparations. They are the effective ingredients in the preparations. They are various powders, crystals, extracts, etc., prepared by chemical synthesis, plant extraction or biotechnology, but Substances that the patient cannot take directly. API is intended to be used in any substance or mixture of substances in the manufacture of pharmaceuticals, and when used in pharmaceuticals, it becomes an active ingredient of the pharmaceuticals. Such substances have pharmacological activity or other direct effects in the diagnosis, treatment, symptom relief, treatment or prevention of diseases, or can affect the function or structure of the body. According to its source, active pharmaceutical ingredients are divided into two categories: synthetic chemical active Pharmaceutical ingredients and natural chemical active Pharmaceutical ingredients.
Chromium Picolinate,Tianeptine,6-Paradol,Aminobutyric acid,acetylcysteine,L-Carnosine
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