In recent years, wheat sheath blight has become a disease that is common in wheat production and is more serious. The occurrence of the disease can lead to a decrease in the number of grains per spike, a decrease in the grain weight, and even the formation of white spikes, which can also cause lodging, which has a great influence on the yield of wheat.
First, how to identify?
Wheat sheath blight mainly occurs on the sheath and stem of wheat. In the early stage after the jointing of wheat, the stalk-like lesions with "light brown" edges and "grey-white" in the middle appear on the leaf sheath near the surface of the lower part of the plant. After the lesions are enlarged, the stalks can be formed into contiguous pieces. Severe causing the bases and 2 sections of the pillars to become black or even rot, resulting in a "dead strain" phenomenon; the lesions on the stems are fusiform and longitudinally split, and the lesions are enlarged to cause "bad stems". Due to the "flower stalk" and "bad stem", the wheat can not be extracted from the ear to form the dead ear, or the white ear is formed after heading (less fruit, the grain is thin).
Second, how to prevent?
In addition to selecting preventive measures such as good disease resistance, seed dressing, proper sowing, rational close planting, and reasonable fertilization, pesticides should be sprayed in a timely manner in the early stages of the disease. The main methods are:
1 mu with 12.5% ​​special azole (enzolol, fast Poly, Heguoli) 15 ~ 30 grams + 50% carbendazim 80 ~ 100 grams.
220% triadimefon (Purple Rust) 50 ml + 50% carbendazim 80 ~ 100 g.
320% triadimefon (P. sulphate) + 50% chlorhexidine + 50% carbendazim "three in one" 500 times mixture.
4 acres with 5% Jinggangmycin 100 ~ 150 grams.
540% DuPont Fuxing 4 ml + 50% carbendazim 80 ~ 100 grams.
Note: Relatively speaking, the plots that are too early to sow, the amount of sowing is too large, and the field group is too large, and the use of wheat with excessive nitrogen fertilizer, large field humidity and “freezing damage†is more serious. It is best to take the “spray prevention†measures for the relevant plots or the plots where the disease occurred in the previous year. It is advisable to spray the plots of the diseased plants twice in a timely manner (the interval between treatments is about 7 days).
On rural public: Wang Zhi Guang Liu Jinshun
First, how to identify?
Wheat sheath blight mainly occurs on the sheath and stem of wheat. In the early stage after the jointing of wheat, the stalk-like lesions with "light brown" edges and "grey-white" in the middle appear on the leaf sheath near the surface of the lower part of the plant. After the lesions are enlarged, the stalks can be formed into contiguous pieces. Severe causing the bases and 2 sections of the pillars to become black or even rot, resulting in a "dead strain" phenomenon; the lesions on the stems are fusiform and longitudinally split, and the lesions are enlarged to cause "bad stems". Due to the "flower stalk" and "bad stem", the wheat can not be extracted from the ear to form the dead ear, or the white ear is formed after heading (less fruit, the grain is thin).
Second, how to prevent?
In addition to selecting preventive measures such as good disease resistance, seed dressing, proper sowing, rational close planting, and reasonable fertilization, pesticides should be sprayed in a timely manner in the early stages of the disease. The main methods are:
1 mu with 12.5% ​​special azole (enzolol, fast Poly, Heguoli) 15 ~ 30 grams + 50% carbendazim 80 ~ 100 grams.
220% triadimefon (Purple Rust) 50 ml + 50% carbendazim 80 ~ 100 g.
320% triadimefon (P. sulphate) + 50% chlorhexidine + 50% carbendazim "three in one" 500 times mixture.
4 acres with 5% Jinggangmycin 100 ~ 150 grams.
540% DuPont Fuxing 4 ml + 50% carbendazim 80 ~ 100 grams.
Note: Relatively speaking, the plots that are too early to sow, the amount of sowing is too large, and the field group is too large, and the use of wheat with excessive nitrogen fertilizer, large field humidity and “freezing damage†is more serious. It is best to take the “spray prevention†measures for the relevant plots or the plots where the disease occurred in the previous year. It is advisable to spray the plots of the diseased plants twice in a timely manner (the interval between treatments is about 7 days).
On rural public: Wang Zhi Guang Liu Jinshun
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