Prevention of gray spot disease
Recently, the plant protection station technical personnel carried out surveys on the pests and diseases of tropical fruits planted in Beijing and found that the gray spot disease was very serious. Gray spot disease is one of the serious diseases of earthworms and it is a kind of leaf disease caused by Pythium infestans. Damage symptoms The pathogen can damage the leaves, branches and fruits. There are two types of lesions on the leaves, acute and slow. The acute type forms large patches on the leaves, or the leaves are scorching and a large number of fallen leaves. In the early stages of the slow lesions, the leaves produced pale brown dots, which were later joined together into irregular large spots with narrow black bands on the edges and gray or yellow-yellow centers with scattered black dots. In Beijing, damage is mainly caused by leaves. Control methods Agricultural measures. Strengthen fertilization and increase tree vigor; avoid excessive humidity in the shed. Clear field strains. Strengthen disease investigation and monitoring. Once diseased leaves occur in the field, they should be removed in time and burned in a concentrated manner to reduce the source of the disease. During the growth period of pupa, especially in the spring, summer and autumn, the shoots are stricken to the growing stage. The following agents can be used to control: 50% carbendazim WP 800-1000 times; 70% thiophanate-methyl WP 800-1000 Diluent; 75% chlorothalonil WP 500-800 times; 77% copper hydroxide wettable powder 600-800 times; 50% isoprenil wettable powder 1000-1500 times; 50% procymidone Wettable powder 600 times liquid; 50% Prochloraz manganese salt wettable powder 1000-1500 times liquid; 6% chloropyrimidinol wettable powder 1500-2000 times liquid; 40% fluorosiliconazole emulsion 6000-8000 times liquid, The diseased orchard orchard with heavier incidence in the previous year can be used twice each during the spring, summer and autumn shoots, and once every 10-15 days. The spray should be uniform, the droplets should be fine, and the sprayer should be sprayed from under the canopy to ensure the quality of the spray.
Feline Infectious Peritonitis (FIP), referred to as Feline Infectious Peritonitis (FIP), is a fatal abnormal immune response that occurs in cats. It is caused by the mutation of the feline coronavirus carried by cats. As a high-incidence and fatal disease of pet cats, the current incidence of feline abdominal transmission is about 10%.
The symptoms of cats are usually divided into two categories, namely wet FIP and dry FIP, of which wet FIP accounts for the majority of all cases. About 70%, manifested as abdominal pleural effusion, abnormal bulging; dry FIP cats have different symptoms, depending on the type of organ affected by the virus.
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