Traditional Culture Encyclopedia - Weather forecast - When is the best weather to pesticide hawthorn trees?
When is the best weather to pesticide hawthorn trees?
(2) When the weather is hot, you should choose to apply the pesticide when the temperature is low, preferably at 4: 00 -7: 00 pm on sunny or cloudy days, but some drugs are different, such as herbicides and hay phosphorus, and the effect is better on sunny days than on cloudy days. The application of Bordeaux mixture on cloudy days is prone to phytotoxicity.
(3) It is best to apply pesticides on windless or breezy days. If 2.4-D butyl ester is used in windy days, it will affect crops in neighboring areas and cause disputes in neighboring areas.
(4) Don't spray on rainy days or when there is dew. Because the application of pesticides in rain and dew will dilute the concentration of pesticides and reduce the efficacy.
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