Bug problem, nutrient problem, or a lot of worry about nothing?
Hi THCTalk,
I'e got three orange bud bagseed plants on the go, a few weeks old.
They didn't get the best start in life as I left them in the dark for a few days by accident, but they've gone from pathetic spindly things to healthy looking plants. They're in Biobizz lightmix, and I started using 1ml/l BioBizz Bio-Grow in every watering once I noticed the new growth yellowing. It fixed the yellowing nicely and new growth has been healthy and dark, but now there's another problem. Some of the leaves are developing "thin" patches, and starting to die off by the looks of things. This has all happened in the last 2 days.
Soil or hydro or coco: Soil
plant age: 3 weeks
pot size: 1/2l
has it been repotted? and when?: 2 weeks ago, from jiffy pellet
soil type: BioBizz light mix
nutes or additives used and how often for soil: 1ml/l bio-grow every watering for one week
Air temps (max min): 20 - 26 C
Res temps (max min): ???
humidity: ???
lighting type (hps, led, cfl): CFL blue spectrum 250W, about 4-6 inches away. 24/0 lighting schedule.
ph level: Untested
Does anyone know what's causing this and how to fix it?
When you were feeding your girls did you spill any of the feed water onto the leaves, I did that a few times and had exactly the same marks and discolouration as you did.
Not that I noticed but i guess it's possible. I've been watering them individually then putting them back in my veg box so could have conceivably dripped drops onto the other leaves.
My girls did not suffer any permanent harm by the way. I also water by hand and it is next to impossible not to have drips when putting them back... Well impossible for me that is.
Hmm I'm no soil grower but the second pic looks like it is showing signs of root problems or a deficiency. Far beyond me to give you advice though, hope you get some help soon, good luck mate.
I've just taken a closer look and the first set of true leaves on one of the plants look like this...
I normally use your bog standard garden centre compost with no nutes in veg, This is the first time I'm using light mix and veg nutes and look what happens!
In case anybody experiences the same thing, I worked out what happened after a few leaves started to get a purple tinge.
Basically the plants were deficient in N P and K. Once the BioGrow had a chance to work (increased to 1.5ml/l) all new growth was fine, brown spots stopped spreading, and purple colouring disappeared.
So lesson learned to start feeding at the first set of true leaves when using Light Mix, and don't be shy with the feed once you know how the phenotype reacts of course.
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