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gooey-golden-barrel-cactushollow-golden-barrel-cactusI recently bought a golden barrel cactus (about two months ago), judging by its size I would say the plant is about a year old. Everything has been perfect with it until Saturday. I usually water or at least check to see if it needs water. On Saturday I noticed the bottom was limp, apon closer inspection the base of the cactus was soggy and googey. There are small bugs inside the cactus, which is now almost compleatly hollowed out. What could thuse be? Please help.

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    How often do you water it, generally speaking? – GardenerJ Oct 9 '17 at 17:54
  • Do you keep it indoors or outdoors? Sometimes birds and rodents will leave a hole like this, and may have given an entrance to the bugs. Do you have the close up of the gooey bits? I'm upvoting your question to encourage your ability to post more pics – Christy B. Oct 9 '17 at 19:13
  • I water it about once a week. Only on Saturday or Sunday. Never leave it setting in water. – Alex.M Oct 9 '17 at 20:46
  • I keep it indoors on a high shelf. Thanks for the upvote. Until that happens I'll just edit the pic. – Alex.M Oct 9 '17 at 20:48
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    Once a month is a good watering schedule for these things. Water too often, and the roots die, while the plant goes all soggy. – Wayfaring Stranger Oct 10 '17 at 14:05
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Why is My Cactus Going Soft? is an article on the Gardening Know How website. It has some pertinent information about this problem for you to read. The following is a quote from part of that article.

Cactus Problems with Fungal and Bacterial Diseases:

Bacteria and fungus are introduced to the plant from openings in the flesh. The open areas may be from insect or animal activity, damage from inanimate objects or heavy weather, such as hail. The action of injury isn’t important, but the damage from fungal spores or bacteria is crucial. Warm, moist conditions accelerate the production of fungi spores and increase bacterial production. Once the organism takes hold in your plant, you will see soft, mushy cactus. Symptoms to watch for include small sunken spots, discolored scabs, round soft areas surrounded by fruiting bodies, and black or other colored dots on the surface of the cacti skin. You may even notice some oozing of your cactus plants.

Treating Cactus Rot Issues:

Cactus problems that have gotten into the root usually result in a slowly dying plant, while topical issues in the upper body can be treated easily. Most cacti respond well to excising the diseased tissue. Use a sharp sterile knife to dig out the damaged flesh and allow the hole to dry out. Don’t water overhead as the wound closes.

If the damage has infected the roots, there is very little you can do. You can try to repot the plant, removing diseased soil and replacing it with sterile soil. You should wash the roots off well before replanting in fresh potting medium.

A soft, mushy cactus can also be saved by taking cuttings and letting them root for a fresh new plant. Allow the cutting to callus over for a few days before you insert it into sand. Rooting the cutting may take several weeks. This method of propagation will produce a healthy cactus that is the same as the parent plant.

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