Stem Rot?

Grnthmb · #1 03-15-2007, 10:30 AM

I am seeing some type of mold at the base of the stem on my plant. It also seems like its rotting out at the base where the mold stuff is. The plant is growing fine and doesn't seem to be effected by this though. What can I do to fix this?

potroast · #2 03-15-2007, 11:48 PM

That sounds like a fungus called damping off. It could be a goner.

entropic · #3 03-15-2007, 11:54 PM

Here's some stuff I found, see if it matches your symptoms

Quote:

Moulds can completely destroy a garden in a short time. If the climate in the grow room is well-controlled, moulds, in general, have little chance. Moulds and fungi thrive very well under hummid conditions, preferably without much air circulation. Under these circumstances, mould spores, which are always present in the air, search for a spot to grow into mould cultures. If you don't succeed in preventing mould growth, then you must do something about it as quickly as possible. With light mould growth, immediately remove the affected plant parts, and then create a climate in which cannabis does well, and moulds don't (good ventilation, control of humidity and temperature, and putting your plants on a medium which is not too wet). If there's already too much mould present, you don't have much choice but to spray with poison (fungicide). Repeat the treatment after a few days, even if you think the first application has definitely helped. Still, improve climate control and groth conditions. Fungicide treatment should always be a last resort. It's not healthy for young plants or people, so here, it's also: 'prevention is better than cure'
An often-occuring mould affecting cannabis is pythium. This mould causes root-rot, and rot in the lowest part of the stem. It appears most in young plants, and in cuttings. Larger, healthy plants are less sensitive to pythium. Plants get 'falling-over disease' with a serious pythium attack. We don't have to explain what that means Pythium is recognizable by the bark at the base of the stem turning brown. In the beginning, the 'brown attack' is easily removable. Later, the rotting process eats deeper into the base of the plant. Pythium is a fungus which flourishes best in wet and humid environments. Pythium spores spread only through water. Two kinds of spores are formed; Swarming ones and stable ones. The swarming spores germinate best at a temperature of approximately 15 degrees Celsius, while the stable spores germinate if it's relatively warm; around 28 degrees C. To prevent a pythium attack, a constant temperature of the soil or rockwool is needed. Large fluctuations in temperature should be avoided. Pythium can only be fought in a limited manner with chemicals. A proper relative humidity must also be maintained (not too high). Leaf moulds, such as mildew, and thread moulds occur less frequently than pythium.

Grnthmb · #4 03-16-2007, 08:16 AM

If i took clones from the plant would they end up with the same problem?

potroast · #5 03-22-2007, 12:33 AM

Well, if the plant is big enough to have branches, and is still living, then you probably don't have a deadly fungus. But if you do, and the branches are healthy enough to root, then they will make fine plants.

HTH

Grnthmb · #6 03-24-2007, 10:03 PM

Heres a picture of whats going on. What should I do to make this stop? The plant is very healthy otherwise still.

xxDogTagZxx · #7 01-01-2009, 01:06 PM

I think im havin the same problem. Ill post some pics soon. Neva noticed since my plant was so bushy...

curious.george · #8 01-01-2009, 04:31 PM

Quote:

Originally Posted by Grnthmb

I am seeing some type of mold at the base of the stem on my plant. It also seems like its rotting out at the base where the mold stuff is. The plant is growing fine and doesn't seem to be effected by this though. What can I do to fix this?

I had a plant do that, a few days later it fell over, a few days later it was dead.

You need to keep your stuff more dry.

Azzak · #9 01-03-2009, 10:04 AM

im having probs with this shit aswell ive just binned 20 eva seeds monster ive got 30 more big bang aswell im keeping my fingers crossed they dont get it ive been reading that treating the infected plants with a copper fungicide with prevent it i think its my cloning tent thats getting too humid thats causing it i thought humidity was good for seedlings and cuttings i guess i was wrong its been and expensive mistake and 1 i dont want to happen again.

theleanbean · #10 02-01-2009, 06:44 PM

i no why the roots are doing this, and i now how to stop it!!!!!1 listen up because i spent the whole day at collage reseaching this, and i now my stuff

i had the same problem, i have 5 aerogardens, all filled with plants frowing, now the first time i did this, all my plants had stem ort.

listen if you have the aerogarden- what you need to do is, TURN THE WATER PUMPS OFF. THERE ISNT A BUTTON TO DO THIS, BUT WOT I DID IS PUT CARDBOARD OVER THE FUSE, AND THE PUMPS DNT PUMP WATER ANY MORE.

SECOND THING, U NEED TO GET A FAN, AND FAN U PLANTS !!!!!

3RD THING, NOW UR PLANTS ROOTS R LONG ENOUGH U DNT NEED THE PUMP, U ALSO DNT NEED AS MUCH WATER EITHER, SO U CAN EMPTY SUM OF THE WATER

do these 3 things, before the stem rot and u will b fine. u mite even be able to save ur plants if u do this wen they r already rotting

take this advise people, it saved mine