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Many aphids on pansies keep spraying but after about a week they come back



As they keep coming back I would imagine that you are using a contact insecticide. Perhaps a systemic one will do the trick?

20 May, 2018


Neem oil might be worth a try. It is one of the few "organic" remedies with a residual action. Just don't apply when the temps are going to be above 29ยบ C within the next 24 hours.

20 May, 2018


I've heard that neem oil can damage the leaves.

22 May, 2018


Normally only when the weather is too warm, and on certain plants very sensitive to oils, such as ferns and begonias.

23 May, 2018

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