After the spring wheat returned to green, with the temperature rising, the sheath blight began to occur; after the wheat entered the jointing stage, the disease rapidly and horizontally and longitudinally expanded, forming a peak incidence. There are many rainy days in spring and the humidity in the field is large, which is conducive to the spread of disease. Prevention and control of wheat sheath blight should be controlled before and after wheat jointing and when the sheath blight is first developed. Applicable to the control of wheat sheath blight, such as Jinggangmycin, Thioflavamide, etc. There is no special requirement for temperature application. It is suitable for the prevention and treatment of sheath blight of tebuconazole, hexaconazole, diniconazole, triazol, epoxiconazole, propiconazole, benzoylpropanazole and other triazole drugs, which have certain inhibition on wheat growth. The effect is that the wheat growth is inhibited to aggravate when it is subjected to strong cooling and low temperature, and it is prone to phytotoxicity and affect wheat growth. Under normal circumstances, the use of these triazoles to control wheat sheath blight does not seriously inhibit wheat growth, and has no adverse effects on wheat growth. The use of drugs before and after wheat jointing can also reduce the length of wheat base internodes to a certain extent, and enhance The lodging resistance of wheat. Triazole drugs such as tebuconazole, hexaconazole, diniconazole, epoxiconazole, propiconazole, and benzoylpropanazole are high-efficiency drugs for controlling wheat sheath blight, and generally use pure drugs per acre. ~10 grams can achieve better control effect, and the duration of effect lasts for more than half a month. 30 grams of 43% tebuconazole per acre, equivalent to 12.9 grams of pure drug per acre, the amount is slightly larger, but when the wheat growth is normal, the application generally has no adverse effects, and can achieve better disease prevention effect. When the seedlings are weak, it is not advisable to apply the amount. Note that in the short term, it is not possible to encounter strong cooling and low temperature weather in order to avoid excessive inhibition of wheat growth. In the prevention and control of wheat sheath blight, in addition to the selection of the drug type and the amount of foot medicine, it is very important to use the amount of water. It is necessary to increase the amount of water to spray the powder and send the drug to the susceptible part of the wheat base to improve the control effect. Before and after wheat jointing, triazole drugs such as tebuconazole were used to control wheat sheath blight, which also had a good effect on controlling the occurrence of powdery mildew in the later stage. More pesticide knowledge , please pay attention to China Pesticide Network Center Drills,Lathe Center Drill,High-Speed Steel Center Drills,Center Drill For Wood Working Supal(changzhou)Precision Tools Co.,Ltd , https://www.endmillpro.com
Temperature rises, wheat sheath blight is high, and prevention should master these