Answer: You didn't say what you sprayed your citrus tree with - if it is oil-based, it may have suffocated the leaves. The general recommendation for treating any insect infestation is to make sure both the targeted insect and the plant are listed on the label - not all insecticides are safe to use on all plants. If what you used was recommended for spidermite control on citrus, all should be well. As for the leaf drop, it could simply be coincidental; a reaction to the drier air and lower light levels your lemon tree is experiencing indoors. Keep it well watered and in the brightest spot possible, away from drafts, and it should regrow foliage. Enjoy!
Q&A Library Searching Tips