The Grow Awards 2025 🏆 
By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms
Accept
Pest or Deficiency
Martian_Danswered grow question 4 years ago
I had a similar problem a week ago, yellowing between the veins. What I did was add some CalMag and readjusted my pH to 5.9 as per @gmslaves suggestion I also relooked at humidity and temp! My new growth is much better will be posting pics of them later in the week
Similar Grow Questions
Solved
jeannoTapin
F44: dozens of gnats stucked on buds & sugar leavesHey,
I noticed dozens of gnats stucked on sugar leaves and buds trichomes/resin... I tried to pick them by hand but there are too many.
I saw articles about bud washing which seems to be a good thing except for higher mold risk.
Would it be the only way to smoke bug free weed?Other. Bugs
Other. General questions
a year ago
4
Solved
fgrgeargha
First Grow 4 weeks into Veg - Let my humidity get too high for 1 night. Need help with mold/septoria/?Last 3 days I've pruned diseased leaves every morning, foliar sprayed peroxide leaves & topsoil, & added some to watering solution. Is only affecting one plant in tent. Humidity no longer issue (was waiting 4 inline fan). If I keep pulling off leaves it's going to die anyway.Leaves. Other
Other. Bugs
Other. Mold
a year ago
3
3
Solved
JayJou420
Mold?its my first grow is this mold? im constantly at around 40-45% humidity no signs of mold on plant itself just at the top of the medium
its biobizz if its somehow relevant
and if its mold what can i do?
i appreciate any help and sry for bad english its not my first languageOther. Mold
a year ago
1
1
Solved
AlpAge_Cino
translucent pest in soilHi, last watering I've seen tiny translucent insects (about 1 mm) emerging from the soil. They are fast and can jump like a flea. I assume they live in soil. What are these little monsters, should I worry about them and what should I do ? TIAWeek 7
Other. Bugs
a year ago
5
3
Solved
ImIHighyes
Mold suspectingHi, this is my first amateur growing, I have 2 strains Bud Orange Auto and Skywalker Auto.
I noticed a musty smell from my 2 plants, one is almost ready but the other one seems in stuck..
From the pictures, could you give me some advice if my plants are healthy or not? Many thankOther. Mold
a year ago
2
3
Solved
CannaMom2
WHY?? Still looks like Calcium Deficiency?? HELP!!!Can Someone Please tell me what is going on here? I have a detailed diary if you have any thoughts on why it still looks like a Calcium Deficiency. Plant looks healthy except this. First time for coco (bagged & prebuffered), grow dots, and wick bases so I am at a loss.a year ago
12
5
Solved
millerman543
Well I messed up a little I just pulled out my sticks I was using to label my seedlings and I find this white mold on them. I removed the sticks and dirt around should I use an anti fungal thing? I already have had gnats too but treated for them. This living soil is no joke ehOther. Mold
a year ago
2
3
Solved
MrGreen92
Can I fix a nitrogen deficiency with more terra tripart nutrients or do I need something else?My Double Grape is showing signs of what looks like a nitrogen deficiency. My Ph is 7, temps 25c, humidity 40% and watering 1l every 3rd day. Does anyone know if I can increase my nitrogen my adding more of either micro, grow or bloom from the terra tripart range?a year ago
6
2
Solved
BavarianBarbarian
Nitrogen Toxicity?Not sure if this is nitrogen toxicity or normal leaf color. Crinkling was caused by too much light and the fan. Got better in 24h after adjusting grow light and fan. Plants are starting week 2 of veg, Hulkberry Auto. Medium is light mix soil.Leaves. Twisted
Plant. Other
Feeding. Deficiences
a year ago
4
3
Solved
Frosty_Buds
Mould on seedlingThis seed was late to spawn. Now it finally opened, even if it's quite short on the soil. I can see a fluff of mould just below the cotyledons. What should I do? Can I save it or do I risk contaminating the rest of the plants in the growbox?Other. Mold
Setup. Seedling
a year ago
4
4
Solved
MrGreen92
What and why?What are these and do I need to address it?
I'm a couple of weeks in to my grow and just spotted these little critters when I was cleaning my run off saucers. I'm guessing there's more inside the soil are they harmful to my plants?Other. Bugs
Setup. Substrates
a year ago
3
2
Solved
BudmanFlyingjoint
Strange discolorationThe plant is becoming less green, more yellow, dark green/blue, and the tip seems necrotic. She received a little more light intensity (TS1000 at 50cm, 25%dim to 50%dim) when she was repotted on the final DWC. T.A. (Growing on FeedChart) was used to create the nutrient solution.Leaves. Veins - yellow between
Leaves. Color - Dark-purple
Feeding. Deficiences
a year ago
1
3
Solved
Moondogz
Suspected Nitrogen DeficiencyNoticed yellowing leaves at the start of Week 3. Suspect nitrogen deficiency. Using Cal-Mag, Alga Grow(NPK 4-2-4), and Power Roots(NPK 0-0-2) at half the recommended dosage. PH is measured at - 6.5.Leaves. Veins - yellow between
Leaves. Color - Yellow
Feeding. Deficiences
10 months ago
2
2
Solved
MarcoCasanova00
Pest infestation left my plant folded and weak. I treated it, but now blacked out leaves?Ants were farming an oval shaped bug's secretions that was eating my stem and going underground, leaving a trail of a film-like substance.
Treated it with neem oil, cigarette butt tea, garlic and dishwasher soap to fend them off. Black leaves now. Tips?10 months ago
2
3
Solved
kira90
notice any nutrient deficiencies or toxicity ?Hi guys, I was wondering if you could tell me if you notice any nutrient deficiencies or toxicity auto 25° /55%rh / ts1000 distance 60cm 75%power 40 dli (photone) feed two days ago and still wet with 700 ml
0.5ml bllom
Budcandy 1ml
1ml rhinoskin
0,5 calmag
Ph 6.4Other. General questions
Feeding. Deficiences
10 months ago
1
3
Solved
Germaican
Deficiency because she starts to flower? Leaf tipps light green. Some purple at the stems.I have not fed her, just a bit here and there. So I do believe she starts to need her medication.
Its going to the end of preflower week1.
Symptoms: some light tipps and some purple at the stems.
Solution: feed her P and K. could add some CalMag ?
Or Still feed more NPK?10 months ago
4
4