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Roses, blackspot spray
Grajean
Posts:
447
May 2023
in
Plants
I sprayed my roses with blackspot spray then unfortunately the rain came within half an hour, so will the spray have been absorbed in that short time,or should I spray again? Looks as though its going to be a bad year for this disease.
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Busy-Lizzie
Posts:
24,043
May 2023
I think you will need to spray again.
Dordogne and Norfolk. Clay in Dordogne, sandy in Norfolk.
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Grajean
Posts:
447
May 2023
Thank you, just waiting for a dry day!
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