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Leaf miner
Sixdogs says: any help on getting rid of the little devils please. They are attacking a perennial summerina plant , any thing I can spray ?
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If they are already under leaves it's too late to spray anything effectively, although you could on the soil below as they will lay their pupae there. I remove and discard all leaves affected to try to keep them at bay. They were all over my asters earlier this year.