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When should I spray my citrus trees for scale?

Glencora | Feb 5, 201212:25 PM

I want to spray horticultural oil on my lemon and lime trees but I don't want to damage the flowers. I know now is the time to spray other fruit trees, but the citruses aren't dormant.

Also, is there any other nontoxic way to get rid of scale? I've read that scraping them off actually helps spread them around. Is that true? My trees are in large pots and are about 5-6 feet tall, so I can reach all the parts quite easily.

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