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dying plants in the garden

Posted by kate.fitch@orange.fr - Created: 3 years ago
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2 replies (Showing replies: 1 to 2)

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Posted by brian61 - 3 years ago

This hot dry weather is ideal for the red spider mite. If you see them on a plant try spraying with water at dusk. They have been living off the sap in the leaves which will then turn yellow/gold and die. They will eventually kill the plant. Cut out the infected parts and destroy (do not compost). These plants can be/should be cut back after flowering to give a second bloom, or cut back hard in spring (almost to ground level) to sort out neglected plants. They usually survive very dry conditions but will need a water spray at the first sign of "araignées rouges"

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Posted by moi-383589 - 3 years ago

Do you mean 'Potentilla'? Could be spider mite-hot and dry conditions. It can be cut back really severly-remove all dead bits.Insect control soap sprays-

http://www.ext.colostate.edu/pubs/insect/05547.html