Early weed control with lower efficacy is generally preferable to no control at all or late control with higher efficacy — as long as weeds are present and not frost damaged. See the updated article with more on spraying in tough conditions, including after a frost or on cool days.
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Spraying when cool and cloudy
Applications made when cool cloudy days follow cool nights will result in lower herbicide efficacy than applications made in warm sunny days. Cloudy days don’t provide the photosynthetic activity required…
Early weed control in cool or frost conditions
Early weed control with lower efficacy is generally preferable to no control at all or late control with higher efficacy — as long as weeds are present and not frost…
Spraying in cool temperatures
Applications made when cool cloudy days follow cool nights will result in lower herbicide efficacy than applications made in warm sunny days. Cloudy days don’t provide the photosynthetic activity required…
Spraying in cool temperatures
Applications made when cool cloudy days follow cool nights will result in lower herbicide efficacy than applications made in warm sunny days. Please see the updated article on spraying in…