It Is a cutting i planted 1 yr ago, I rooted well and grew in the summer. I'm just concerned for this fungi that attacked it on the base, how could I deal with it? I grow it indoor

by Paul_Darsy_23

5 Comments

  1. Distinct-Image-8244

    Copper fungicide. Could be corking, but looks fungal. Also it needs more light, which would help it avoid more etiolation and fight the fungus. Be aware of the chemicals in any products used on it.

  2. That soil appears to be very organic, so a better soil might help. An organic soil holds too much moisture which can allow fungus to thrive.

    Second, and related, that is planted too deep. The soil level should be within 1/4-1/2” .6 – 1.2 cm) of the lip, ideally. Otherwise the damp air stagnates.

    To fill out the big three: that cactus is telling you it needs more light.

  3. Planet_Rick

    Etiolation = lack of sun.

    Put on sun PROGRESSIVELY to avoid sunburnt. 6 days in outside shadow, 6 day in half shadow, 6 day in sun, then full.

    Investigate on appropriate substrate for tricho and pot size. Non appropriate substrate and lack of nutrient = fungic attack.

  4. NiklasTyreso

    The cactus looks like it has too organic soil and too little soil. It should be at least 50% pumice, leca clay balls or perlite.

    Also, the latest growth is etiolated and thin because it has received too little light/sunshine. 

    I don’t water my cacti from October to April when they are indoors with weaker lighting. They are more sensitive to water in the winter.

    The risk of rot increases with poor wet soil, poor light and low temperatures.

  5. Paul_Darsy_23

    Thanks! Unfortunately winter here is quite harsh (temperatures well below 0°C) so I have to keep it inside and it doesn’t get much sunshine. I will try to change the soil for now and hope it resists until spring

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