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Gardening Know How Questions & Answers - https://questions.gardeningknowhow.comTop of my cactus plant is turning black it was growing great had a lot of new growth I watered the plant now it’s turning dark please help don’t want to lose the plant. Thank you
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1 Comment To "Cactus"
#1 Comment By BushDoctor On 01/15/2018 @ 1:46 pm
Uh-oh… This does appear to be a fungal infection. You will want to apply wettable sulfur the next time you water, and cut off any infected parts. Rub the spot with peroxide to make sure it kills the infection from the cut.
Make sure to only water when the soil is almost completely dry. You may even want to use a cactus mix type soil, if you aren’t already.