Houseplants bothered by pests? Rub them out with rubbing alcohol. An alcohol spray is effective against mealy bugs, whiteflies, red spider mites, aphids, fungus gnats, and scale. To make the spray, mix 1/2 to 1 cup of rubbing alcohol with 1 quart of water in a pump-spray bottle.

It’s a good idea to test spray one leaf of an infested plant and wait a day to check for damage. If the plant is unaffected, spray the whole plant. Treat at 3-day intervals for 10 days or as needed.

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