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Old 10-18-2013, 10:58 AM
grassmasterswilson grassmasterswilson is offline
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Join Date: Mar 2007
Location: nc
Posts: 4,021
Cloudy weather affecting simazine?

I've been spraying simazine at 1 qt per acre on my Bermuda for fall pre. Started about 2 weeks ago and should finish today. Seeing some yellowing but not total kill

I'm seeing slow results. The temps have been between 50-80 most every day. We have been in a very cloudy weather pattern with almost no sun. It drizzled for a week and we got measurable amounts of rain 2-3 times. Lawns are stil 60-70% or higher green.

I'm assume because the mode of action of simazine. that if there is little sun the plant produces very little chlorophyll and would result in a mug slower kill?
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