light burn

  1. B

    Small buds: Week 5 of flower

    Hi everyone, first post here It's been 39 days since flipping to 12/12, but the buds seem really small. I'm using a 100w full spectrum led panel, and an extra blurple light I had laying around, which is about 50w. This is my first grow in a tent (it's a 2x2x4), had a couple outside and one in a...
  2. PurpleThai

    First time growing autos, light burn or nut burn?

    Hello growers, what do you think this is? Some leaves are yellowing or have burnt tips, but not all the plants are showing this problem... Temps are 77°F during day, 64 during night, RH 40%. 20 hours light cycle. I have a spider farmer sf2000 (200w) and a spider farmer sf1000 (100w) both on full...
  3. JASONsHAZE

    Brown hairs across multiple bud sites

    This is my first grow, and I am working with 2 Critical 2.0 Auto plants. My plants recently hit the week six mark, and I’m expecting to harvest at around 10 weeks or 80 days. Throughout week five and into week six I have noticed some of the buds are developing golden and brown hairs. What I...
  4. PurpleThai

    Clawing and yellowing leaves

    Hi, I got some discolored and claw leaves and I'm not able to understand what's really going on: Light burn? Wind burn? too much nutrients? my fabric pots are dirty and I was thinking that this could block oxygen transpiration making my leaves to curl. -9 of 11 weeks of flowering -temps 78...
  5. G

    *repost with all info* potential light burn?

    Hi guys, noticed these white/yellow/brown marks on the leaves. Can't quite figure out what's caused it Anyone seen this before and know what it is? It has come through in the past two days I have a par reader, no light is over 1500umol (either between 950-1250) and I run co2 Is it possible...
  6. PurpleThai

    Phosphorus deficiency and incorrigible pH

    Hi! I'm having problems with these plants (different genetics, same problem), and I don't know what to do anymore, I hope to get some help from someone better than me. My plants are showing something I think is a severe phosphorus deficiency with purple branches: 2 months ago I bought a cheap...
  7. T

    Can someone identify whats wrong?

    LED light 275W 36” away from pot Plant at day 10 from seed, started in 5 gallon pots coco/perlite Feeding started at day 6 with low ppm around 200 Last feed was yesterday around 315 ppm Feeding calmag and foxfarm nutes according to schedule ratios I fertigate around 1 liter per day and i tend...
  8. AngerbizcuTT

    Stunted cannabis,need advice,suggestions and a diagnosis for my ladies plz

    Browning tips on all plants and color is becoming very light. I believe its nute burn and light burn. These plants are photos,3 months old and they severly stunted and where infested with root rot, fungus gnats,catapillars and mold. Ive rehabed them and they have recovered growth and I...
  9. G

    Help! Deficiency or light burn?

    Hi guys, Over the past few days I have been noticing these spots and discolouration of the leaves. I have moved them into my main room and turned the LEDs up to about 50% (4x 600w LEDs). They aren't too close but the plants got too big for my liking as I wasn't able to transfer them earlier I...
  10. G

    Mid Week 5 flower

    Hi guys, First time, just noticed these leaves twisting (on a new tops) Is this light stress or normal for this stage of cycle?
  11. G

    Light burn?

    Wondering if this is light burn? 9 week strain in week. In week 6 right now. All pics are the same plant But the lighter color leaves are towards the middle of the tent.. if so should I dial down my light?? Any help is appreciated!
  12. Dutch_cultivator717

    Mars hydro tsl-2000

    Hey guys, I recently bought a mars Hydro TSL 2000 and I am curious how far away you guys run your lights from your girls and what do you dim them down to? I have mine at 32 inches at 25% because I thought I saw some light burn at 50% and 32 inches what do you guys suggest?
  13. C

    discoloring + leaf eaten? + dark green leaf with curling

    hello my fellow growers! i´ve started noticing some problems in my plants. This is my first grow so expect lots of errors haha. Im here to receive all the criticism possible and learn! image 1: two problems: The leafs show some discoloring. Is this nutrient deficiency? i started giving...
  14. C

    Sugar Leaves Looking Weird

    Hey guys, A few weeks into flower on one of my girls, and noticing some weird yellow/orange patches on the sugar leaves on the highest bud sites + some are yellowing a bit. The lower sites are fine, but 4 of my higher budsites have this weird discolouration on the sugar leaves. Does anyone...
  15. G

    Top leaves turned yellow

    dutch passion Think fast 17-21c temperature Humidity: 38-45% Light distance: 15-20cm Flowering week 7 Im using flora trio 0.5/1/1.5 ratio im using 20 watt bulbs (18 in total) best guess is light burn, but the problem is that some lower buds have this problem and some taller buds (closest to...
  16. PlainfieldPuff

    Help Please! Things going south quickly .

    Specs : Day 17 flower. 3x3 tent, 75-80degrees, 45-60 Rh depending on when I watered. Soil I am using is Roots Organic. 400watts LED, 2x SF2000. Taller Girls are about 12-15 inches from light . Supercropped them down tho to make even with rest of canopy, and lowered light to 80% intensity. So I...
  17. H

    Light burn or nitrogen deficient/ph issues?

    Recently my green crack plant has been showing some signs of yellowing my first thought was ph, then nitrogen but I can’t help but feel like the fact that my setup is so small that the buds just grew too close to the light. I measured the lux at just under 50,000 at bud height, which from what I...
  18. B

    Leaves twisting/pointing up

    Hi, just was wondering if anyone notices and issues with any of the pictures attached? She sprouted about 15 days ago. I’m using FF happy frog soil and fed the plant big bloom, Cali magic, FF boomerang with RO water. I alway make sure PH is within 5.8-6.5 and when I watered 5 days ago the...
  19. U

    Some growing problems I have

    So, I’ve had a couple problems with my grow in the past half week or so. first off, notice the discoloration And the tips of the leaves. I subjected this to light burn, I’ve actually changed my LED from on to off and switched it out for a CFL. I didn’t have problems with the led, green as ever...
  20. Gtjoker420

    Whats yalls ideas on this deficiency?

    So I noticed some of my leaves are getting beat up and now some are starting to stick straight up and not spread out properly. My friend told me my LED is turned up too high causing damage. I'm in promix using down to earth amendments and compost teas. As well as great white, and recharge...
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