geraniums - Knowledgebase Question

Granite Falls, nc
Question by the3carrs
July 21, 2007
My geranium leaves are turning yellow. What is causing this? Also, the leaves are being munched on. Is there anything that I can put on these flowers to keep the insects off?


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Answer from NGA
July 21, 2007

0

It's normal for the older leaves to turn yellow. Once they fall off, new leaves will take their places, especially if you pinch the plants back a bit. If the yellowing is on both old and new leaves, I would suspect an insect invasion. Check the undersides of the leaves for signs of pests. Insecticidal soap works well against soft bodied insects such as aphids and whiteflies; Bt works against caterpillars. Once you have identified the pest, you can use the appropriate pesticide.

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