My flowers are getting too weedy. I want to spray something that will last. I bought RM43 from Agri-Supply. It is 43% gly and .78% Imazapyr.
The directions say it prevent weed up to 1 year.
The lady at the store said it would be safe to spray without affecting next years sunflowers. What do you think?
Also still have some green leaves but about 1/2 of the leaves are turning black. Is there any affect on the seeds like shattering?
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