The Grow Awards 2026 🏆

Back to Grow Questions

Spider mites?

meangreenmachinestarted grow question 4y ago

What do you think the problem with leafs are during my week 4? I have noticed the there was discoloration on some levels and somewhat looks like someone might be eating from underneath of the leafs.

meangreenmachine

meangreenmachine

meangreenmachine

meangreenmachine

meangreenmachine

Solved

Leaves. Color - Dark-brown

likes

ChitownCannaChicaanswered grow question 4y ago

Looks like just damage and possibly the start of thrips

likes

Complain

Selected By The Grower

gottagrowsometimeanswered grow question 4y ago

That's just old N tox leafs, degradation is all buddy. But to be safe. Check underneath leafs for eggs and of course you'll see webs. Good luck pal

1 like

Complain

Similar Grow Questions

Solved

Brown spots on some leaves Hello! I've noticed some brown spots on some of my leaves, localized to one half of the plant. Any ideas what this could be?

Leaves. Color - Dark-brown

6y ago

1

1

Solved

Hojas manchas marron las hojas de mis plantan han comenzado a tener manchas, me han dicho que les rocíe con jabón potásico y aceite de neem en las noches, pero cada vez avanza mas. será falta de nutrientes? algún hongo ? o quemaduras en las hojas por potasio ?

Leaves. Color - Dark-brown

Leaves. Color - Mottling

5y ago

2

1

Solved

rust-colored spots Hi, I noticed those rust colored spots on some leaves. What it could be? Day 40 flowering (hydro)

Leaves. Color - Dark-brown

Leaves. Other

3y ago

1

1

Solved

Brown spots on leaves What seems to be the problem with my plant? The old leaves get brown spots whereas the newer ones have yellow edges. Is it a pH issue? Is there a fix to this? I grow in soil and the plant is 4-5 weeks old. Thanks for help!

Leaves. Color - Dark-brown

Feeding. Deficiences

3y ago

1

Solved

First time DWC, day 70, 3 weeks in flower. Nasty rusty spots appear on lower leaves. Is this CalMag or else? Please help understand and fix, thank you :)I'm using TA Tripart, current EC is 1.6 - ph 5.5-6.5. Everything was smooth until week 10. Two weeks ago I started adding Plagron Power Buds and Green Sensation. Yesterday added CalMag to see if it helps, but it doesnt seem to... She drinks a lot, ph mostly goes down, EC static

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

Leaves. Other

10mo ago

7

7

Solved

Rusty spots mid-top of plants. A couple on each plant. Thoughts?(Check diary for more details) Thinking calcium deficiency, also maybe magnesium deficiency on a few low yellowed leaves. Thinking it could be nutrient lockout? Feeding them 6.25 pH always. Gonna try 7.0 once and 6.5 for awhile. Thoughts anyone? Im still fairly new and learning

Leaves. Color - Dark-brown

6y ago

4

4

Solved

Brown Spots on Leaves I’m noticing some light brown spots on my leaves. After researching it seems that it was either 1) Manganese deficiency 2) calcium deficiency or 3) overwatering. I don’t think I’m overwatering. It could be the nutrients but would like input!

Leaves. Color - Dark-brown

Leaves. Color - Mottling

2y ago

5

3

Solved

Hojas dobladas y puntas marrones He empezado la Primera semana de floración con los fertilizantes grotek, ph 6.4 y ec 2.83, mis plantas después de 2 dias están así que puede ser la tierra está seca al momento de revisar..

Leaves. Color - Dark-brown

Other. General questions

Plant. Other

3y ago

2

2

Solved

Brown spot On only one of my plants there is a brown spot which I have no idea where it can come from. I didn't give too much fertilizer and I regulate my ph between 6 and 6.5. Some idea?

Leaves. Color - Dark-brown

3y ago

3

3

Solved

hey guys i have a question. i grew this girl on 400 HID now i bought viparspectra 450v because of the heat problem and electricity bills )) so will she suffer when i will switch the lights and can i help her somehow??? thanx bros )))

Leaves. Color - Dark-brown

7y ago

1

1

Solved

forgettenseedling

Leaves getting brown, can someone help me out? What does the plant need?

Leaves. Color - Dark-brown

Feeding. Deficiences

4y ago

1

1

Solved

Hello growers, this morning i found brown spots on fan leaves, is this some kind of deficiency or fungi? is harder to see under normal light but i can't take a decent picture in the grow box.

Leaves. Color - Dark-brown

5y ago

3

4

Solved

Leaf Issue!Could someone help me understand whether there is a problem a deficit or an excess.

Leaves. Wilting

Leaves. Color - Dark-brown

Leaves. Other

2y ago

5

6

Solved

Puffdamagikchillum

OUCH!! What is it?Deficiency or toxicity? This is in ffhf/coco/Perlite/ewc ph'd @ 6.5 ff nute trio +Calimagic. feed and water once a week in 5gal pot led 14" above plant. My diary tells the rest. 1/4tsp Calimagic 1/2tsp of trio 2lts water.

Leaves. Color - Dark-brown

6y ago

1

1

Solved

Lack of light or Cal-mag?Some spotty leaves here at the base of the plant. The overall plant heath is fantastic and dense, haven’t done much defoliation so the bottom gets very little light. Is this a no light issue or calmag? I’m leaning towards calmag but the lower canopy gets very little. Advise?

Leaves. Color - Dark-brown

4y ago

1

3

Solved

Leaves have brown spots Any idea what these brown spots could be?

Leaves. Color - Dark-brown

4y ago

1

6

Solved

новые листья желтеют, а на старых появится пятна и опускаются кончики Возникли жёлтые полоски на новых листочках и коричневые пятна на старых. Но цветок в целом не выглядит больным (возраст 3 недели)

Leaves. Color - Yellow

Leaves. Color - Dark-brown

5y ago

1

1

Solved

Leaves changing colors Leaves are starting to curl down on one plant. Another plant the leaves are changing colors as shown in the video, what am I doing wrong? First time grower.

Leaves. Curl down

Leaves. Color - Yellow

Leaves. Color - Dark-brown

3y ago

1

5

Solved

Skittles plant with brown spots One of my skittles plants is starting to get these brown spots with a yellow outline. Any advise is appreciated!

Leaves. Color - Yellow

Leaves. Color - Dark-brown

3y ago

1

4

Solved

Leaves. Color - Dark-brown

7y ago

2

1