Cannabis Troubleshooting

my white rhino plants are starting to turn yellow :thumbdown the damage starts at the top of the plants where the most light is being absorbed which could really hurt my yield if i dont get this problem fixed soon the leaf starts to go a lighter green colour than the lower leaves, then the tips start going yellow, working its way to the stem then the leaf just falls off when touched :thumbdown i have been advised to buy some cannazyme by my mate but i would prefer to get multiple opinions on what the problem could be and how to fix it before i fork out any cash just incase the cannazyme is a waste of time to me... thanks in advance, lets just hope i can save thi…

I have a strange thing going on, I cant think of what to do or how it happens. But Twice I had put rooted clones that were in rockwool in to soil, Both times the plants have stopped growing and are kind going bonzai. This time it has done it with a seedling??? I raised the seed in a cube and then transplanted to my others seedlings. Is rockwool not compatible with soil or whats the deal?? I have always used rockwool with clayballs or perlite without it doing this??

Hey all posted these pics in my other thread but i still need confirmation. Is this caused by CO2 overload? Does anyone one have any pics/links to CO2 burnt plants. If not CO2 what is it? thanks

Hiyas first id like to say great forums and lots of advice and good reading here thank you admins there seems to be some problems can anyone work out what this problem may be ? strain is apparently Great White Shark Grown in Hot CoCo & Clayballs dutch master nutes at 5.8 ph things were fine then they were first transplanted for a few days then it started to creep in over a few days its been this way since about 5 days after being put in they are still growing slowly but the curl cannot be cured after 4 weeks leafs also under the plant at the bottom are curling also but some of the other fan leaves are fairly ok with only a little twist on the ends it se…

Problem solving time…. Two different plants not sure if it is the same problem or not; I am thinking iron deficiency (probably wrong). If not iron, my second guess is a mag deficiency. I am not sure how to fix either problem… The is no necrosis, no purpling, all lower leaves are dark green. Coco/perlite, hand watering using Advanced Nutrients Sensi grow 2part. PH is between 5.5 – 6.5 (usually closer to 6) TIA~

Hi one and all, have had a recent infestation of scarid fly and am about to spray with pyrethrum as suggested here. The surviving baby is 2 mths old and looks terrible. I remember reading on a thread here that you should put some in with your nutes to attack them from within, but was unable to find any recommendation as to the strength. Can anyone help? Bazza 7 :scratchin

:thumbsup :thumbsup :thumbsup I have been plauged with spidermite over the years, but the last few crops I havent seen any and the product I use is called OMITE and it is out standing for killing spidermite I have over the years tried every thing, nothing comes close for the shear killing power to spidermites than this product if used correctly I use 1/2 a gram to 1 liter of water to start with for small plants up untill they have at leasrt 5to 6 nodes then use 1gram to 1liter of water when they are older, with a couple of drops of dish washing liquid I stress a couple of drops to 1 liter and srart spraying plants when they are in the seedling stage at least 3 to 4 wee…

Hey guys. I have this one plant which is VERY yellow. and only on the canopy. Below the top leaves she is nice and green. I also have another 2 plants which are all identical (from the same mother) and they are fine and green, no problems at all. They are in soil So basically I have 3 plants, all the same, all being fed and watered the same, yet one is massively yellow on the canopy. She is also the closest to the light but I moved the light further away, temps are fine (23 degrees at the top leaves) and its been like 2 weeks and still no improvement.... Thats about a week ago, since then she has got a bit worse, when I get the digicam back i'll take some more pics…