First, the symptoms
At the beginning of the disease, red and purple spots appeared on the branches, and then gradually expanded into large lesions. The center of the lesions was dark brown, the edges were reddish brown or purple brown, and slightly protruding upward. The lesions were dark brown in the late stage, and the surface was longitudinally cracked. When the whole plant died.
Second, prevention and treatment methods
(1) Cut down the branches, dead branches and rot leaves in time and burn them collectively.
(B) At the beginning of the disease, 75 percent of chlorothalonil WP can be sprayed with 600 to 700 times of liquid spray.
(3) When the disease is serious, 50% of the antibacterial 800 times solution or 50% of the carbendazim 800 to 1000 times solution can be used for spraying prevention.
A flange can also be a plate or ring to form a rim at the end of a pipe when fastened to the pipe. A blind flange is a plate for covering or closing the end of a pipe. A flange joint is a connection of pipes, where the connecting pieces have flanges by which the parts are bolted together.
Although the word flange generally refers to the actual raised rim or lip of a fitting, many flanged plumbing fittings are themselves known as 'flanges':
There are many different flange standards to be found worldwide. To allow easy functionality and interchangeability, these are designed to have standardised dimensions. Common world standards include ASA/ASME (USA), PN/DIN (European), BS10 (British/Australian), and JIS/KS (Japanese/Korean). In the USA, ANSI stopped publishing B16.5 in 1996, and the standard is ASME B16.5
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