Insect under Leaf on plants are turning Yellow - Knowledgebase Question

Metairie, LA
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Question by brenda3755
June 17, 2006
I have several azaleas and hibusis plants that have an insect under the leave that is hard to see with the naked eye. However, they are sucking everything from the leaves turns it yellow, makes holes and leaf eventually falls off. Can you please tell me what they are and how to get rid of them. Thanks

Answer from NGA
June 17, 2006

You may be seeing more than one insect. The holes are caused by a caterpillar or beetle of some sort most likely. The insects you are seeing that suck the juices from teh leaves making them turn yellow may be whiteflies or mealybugs or aphids or scale. I suggest you take some leaves to a local nursery or your parish Extension Office for proper identification. Then an appropriate control can be recommended. It may be that sprays of insecticidal soap or horticultural oil directed UPWARD from beneath the foliage will be effective in managing the pests. Such sprays will need to be repeated about a week apart for a total of 2 or 3 applications.

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