Precautions for the use of Azoxystrobin
Azoxystrobin has a wide fungicidal spectrum and is soluble in various solvents such as methanol and acetonitrile, in addition to emulsifiable oils, and has good activity against almost all pathogens of the fungal world. However, despite its many advantages, it is worth mentioning that the use of pyrimethanil should be careful to prevent drug damage.
Azoxystrobin, as a highly effective, broad-spectrum fungicide of the methoxyacrylate class, can be used as an active ingredient in formulations that not only treat multiple diseases with one drug, but also increase the disease resistance of the plant and improve resistance to adversity, especially its longer effective period, which can reduce the number and cost of drugs, delay crop senescence, lengthen the harvest period and increase the total yield. It is understood that pyrimethanil has good activity against almost all pathogenic fungi in the fungal world. Therefore, so far, domestic and foreign enterprises have registered 348 pesticide formulations with Azoxystrobin as the main active ingredient for diseases caused by fungal diseases such as powdery mildew, rust, glume blight, net blotch, downy mildew and rice plague in the subphylum Cysticercus, subphylum Streptomyces, subphylum Flagellaris and subphylum Hemiptera of the Ministry of Agriculture in China. Pesticide formulations, including stem and leaf spray, seed and soil treatment and other modes of action, can be used in cereals, rice, peanuts, grapes, potatoes, fruit trees, vegetables and lawns and other crops.
Precautions for the use of Azoxystrobin
(1) Azoxystrobin should not be used too many times, should not be used continuously, and should not be used more than four times in a growing season to prevent the development of disease resistance, and should be used alternately with other agents according to the type of disease. If the climate is particularly conducive to the occurrence of disease, vegetables that have used pyrimethanil will also be mildly affected, and other fungicides can be used for targeted prevention and treatment.
(2) Can be used before the occurrence of crop diseases, but also in the critical period of crop growth, such as leaf development, flowering, fruit growth period, to ensure that there is a sufficient amount of liquid spraying, the liquid should be fully mixed well before spraying. (3) in the apple, pear is strictly prohibited to use, in the tomato on the use of drugs, cloudy days are prohibited, should be used in the morning on a sunny day.
(4) pay attention to the safety interval, tomatoes, peppers, eggplant, etc. for 3 days, cucumbers for 2-6 days, water (melon) for 3-7 days, grapes for 7 days.