Cannabis Troubleshooting
Information and discussions on cannabis diseases, pests and nutrient problems.
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I have a powdery mildew problem that i have been spraying with the help from a lot of your recommendations. But the weather right now in my area is bad for mold and many growers are having problems due to high humidity. I'm days from harvesting, and the powdery mildew is coming on strong. I sprayed where i could trying to avoid buds. Can the mildew continue after i chop down? What should i do? How should i handle my situation. I was gonna pick some down tonight, but i noticed some mildew nearing the buds.
Last reply by Budman2012, -
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Hi team, I am 3.5 weeks into flowering. Indoor, SCROG, Celtic Stone, Auto-pot hydro, dutch master nutes, 400w hps, 250w MH. All was going well till about a week ago. I thought I burnt some foliage, and I probably did, but I got on it quick and moved the lights further away. I thought this would solve the issue. It did not. The weird thing is that only the plants nearest the HPS seem to be affected. The plant near MH looks fine. This would indicated to me nutes / ph are ok.... Besides the different light source, I was probably much heavier with the fan leaf pruning on these plants as I got a male in the MH side and pulled it so there was a lot of extra space so n…
Last reply by ffc99, -
Got Powdery Mildew? 1 2
by Tom-
- 420 Crew
- 15 replies
- 4.1k views
Milk fungicide: One part of full-cream milk to 10 parts water. Mix well and it's ready to use, cover every part of the plant, both sides of the leaves and the stems. Take care, too much milk in the mixture can promote sooty mould.
Last reply by Al B. Fuct, -
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- 420 Crew
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Hello all, I've got 3 week old plants from seed in 100% coco (run to waste) and the bottom leaves of each plant are yellowing then dying, it then moves up to the next set of leaves i thought i might have over fertilized but after a 3 day flush the same keeps happening. The leaves above the ones dying are getting chlorosis near the leaf tips and it's happening again. Sorry my phone aint loading any pics, damn thing. So i think i've narrowed it down to either phosphorous or nitrogen deficiency maybe also Mg (i doubt it though). My question is are there any phosphorous products on the market or should i increase the strength of feeds to make up for it. I'll try to get the…
Last reply by Stoney, -
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- 420 Crew
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Heya I have one of 5 girls which is showing some signs of something ... overall the plant is looking healthy and is budding along nicely ... but she is continuing to push out leaves with just the end tips going yellow .. I've never seen this before and I'm hoping someone has some experience and recommendations on what to do
Last reply by Samjana, -
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- 420 Crew
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Hey hows it goin, this is my first grow its been under lite for about 6 weeks anyone know whats wrong?
Last reply by Mikel, -
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- 420 Crew
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it looks like mold or possible spider mites. Ill try to get a pic up soon, but im getting worried because i hear that mold can spread very easily. Im in week 2 of flowering, and just noticed some small aphids possibly. I know my temp can fluctuate from day to night due to bad insulation, but i dont understand how this can be such a problem because plants outside can be in 90 degree heat in the day and 70 at night and be fine. Maybe humidity is too high, its usually about 60, and temp runs 70-80. Anyone had the powdery substance, or know if spider mites can look like a powdery dust on the leaves? edit: i jsut noticed it looks exactly like the picture in the above topic…
Last reply by MongyMan, -
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Are aphids a big problem, and fruit flys for that matter? I think i spotted a few aphids and some scattered tiny white spots. Should i get some lady bugs and call it a day, or do i need to take a few aphids really seriously? Ive heard conflicting reports, somewhere i read aphids arent to much of a big deal, other sources said different. Any help appreciated. thanks
Last reply by Stoney, -
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- 420 Crew
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Hi Team! Indoor, hydro, scog, celtic stone, 4 weeks 24x7 lights. 400w HPS 250W MH 4 weeks into ved i see female flowers forming on one plant! WTF?? What do I do? Cheers guys!
Last reply by Stoney, -
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- 420 Crew
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2 hours ago i had 2 beautiful looking indicas (Hindu Kush). Only problem was the presence of shit loads of small flying insects all round the plants and the soil. I bought a cheap aerosol insecticide and gave the area a spray. One hour later my plants have curled leaves and look burned on the surface of the leaves. Is this a major stuff up or can i bring them back from this?
Last reply by Stoney, -
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- 420 Crew
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Hi team, I popped some Celtic Stone seeds (my last) about 2 weeks ago in soil with fluro lighting. 2 days ago I transplanted them into perlite for an autopot system and put under HPS 400W. PH is 6, nutes are Dutch Master. No signs of any insects......but the leaves are starting to look awful! ANy ideas? CHeers.
Last reply by ffc99, -
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Pretty much every plant in my group of 20 has a single curled blade on its leaf (or 1 or 2 more). It kind of twists. So whats going on? And it looks like a few have slight bends either up or down. I'm thinking it may be because my ph lvl is around 7-8 and is too high. I'm working on lowering that. Has anyone seen this before? I'm hoping someone can shed some light for me. Thanks in advance for the help. http://img180.imageshack.us/img180/2843/green009wz1.th.jpg http://img244.imageshack.us/img244/4909/green008tn6.th.jpg
Last reply by loylty gets u nothing, -
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- 420 Crew
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Hi all I have had 2 casualties in my GR over the weekend .... I've posted some pix and would appreciate any advice anyone can let me have ... there are still 8 girls left and I would hate to see any others go this way.
Last reply by buck, -
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- 420 Crew
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Hey everyone as anyone got advice on what to do with 2 plants that, due to circumstances beyond my control, had to be kept in a large cupboard ( 3ft high x 4 ft deep x 5ft long) during veg (6 weeks veg- tried to tie it down as we went along). I am willing to veg for another 2 weeks if I have to prune it hard to regain what I cut, but what is the best way to prune them? I am tying them down to try and get a flat canopy, but there is not much substance to the plants, long,long internodal gaps, long lanky branches, and the secondary branches and shoots are matchstick thin. Any advice appreciated aussie
Last reply by Stoney, -
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Hi everyone, been reading these forums for a little while now and have found it to be a tremendous wealth of information, but now I need some help on a possible problem that I havn't found any information relating to. Ok so some information on my 1st grow setup that im trying to do right the first time. 400w hps large 2mx60cmx2.2m wardrobe with 40cm fan, no ventilation as such yet and quite frankly im hoping not to have to cut it up unless its nessesary as this fan certainly moves the air around. using 100% coco 'nitrosol' nutrients (can someone tell me if i should bother buying something better? it has 12.2% nitrogen, 2.9% phos, 8.5% potassium and 2.1% calcium and im n…
Last reply by Growmad,