Is It Safe to Use Insecticidal Soap on Citrus Trees?

Insecticidal soaps kill pests by suffocation and are non-toxic to citrus trees. Certain pests such as aphids, spider mites and scales attack citrus, especially indoor-grown and weakened trees. Spray the tree thoroughly with the soap and allow it to remain on the foliage for at least two to three days before washing off, according to Colorado State University.

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About this Author

Joyce Starr is a freelance writer from Florida and owns a landscaping company and garden center. She has published articles about camping in Florida, lawncare, gardening and writes for a local gardening newsletter. She shares her love and knowledge of the outdoors and nature through her writing.