I'm losing cactuses --- should I use anti-fungal (sulpher, 0.4%)?

I'm losing my smallest trichocereus peruvianuses, the larger ones are ok --- so far. I think I over watered them --- they swelled up, turned white, then when I let them dry out they commenced to wither away til they looked like balloons that somebody let the air out of --- the worst ones have turned a bright yellow and totally collapsed, obviously dead. The rest of the small ones are still critical.

Also one of my lophos turned all yellow like it had jaundice or something, then it went soft and collapsed and bit the dust --- not good.

The others are doing just fine, in fact they are growing visibly in size.

At last we're getting some sun --- they seemed to perk right up in response to a few hours of nice sunny weather.

I have some anti-fungal stuff --- it's 0.4% sulpher. Can I just put some of it on as a pre-emptive move against any future fungal attacks?

I can post photos in a couple days when I get my camera back, but can't right now.

 

oooh. You got root-rotted. Tough break! You can give the Sulfur a shot, but it may be too little too late.

Do you have more seeds? That may be your only recourse now.

 

root rot? sounds bad. anything else i can do to mitigate it?

 

I have a few little cacti that I started from seed. I used small 6cm clay pots with sterile cactus medium. I kept them under artificial light--that way you can provide consistent good light without burning the plants. I kept them in the warmest conditions I could. I think they will do much better if you can keep them above 25°, so starting the seeds in summer may be best. Using little individual pots allows you to avoid having to transplant the seedlings right away. Initially I kept the seedlings under a cover and moist, but never wet and not tightly covered. I find the clay pots dry out so quickly. I have to water them almost daily. Almost all that sprouted survived. I had never even grown cactus before, so I was pleased.

Maybe some of these methods could help.

 

Eric --- I was thinking of getting clay pots but if all they do is dry out faster, maybe it's not worth the effort. Good feed-back. Good luck with your gardening.