Help requested, plants dying

riffy1229 · Post by **riffy1229** » Sat Oct 08, 2022 2:36 am

Hello everyone, we need your help, the wisdom of the veterans!

We’re small-time growers, growing indoors for personal use only and been doing so for 1.5 years. Our place is usually humid and we live on the 3rd floor. We have a room including two tents, a flowering tent and a vegetative tent. We have a dehumidifier in the room and keep it at 50-60% all the time. The temperature also fluctuates between 20-26 degrees Celsius. The airflow is provided by 6 strategically positioned fans including an extractor and a standing fan in the flowering tent. We also have small dehumidifiers inside the flowering tent.
All has been going great with the exceptions of some minor issues which we were able to fix. However, over the last three cycles, our babies are constantly dying when we are shifting them to the flowering stage within 2-3 weeks.

We had an aphid/thrips problem first which progressively got worse and wiped the first cycle. So we cleaned it up completely, destroyed everything related to that grow, sterilized everywhere and sprayed insecticide inside (while it was empty). Our second cycle died in a ‘unknown’ way, all the leaves started yellowing, dried up and died but the branches were still strong and green/purplish. Thinking it was the aphids again, we did the room clean-up again from scratch.

Our third cycle is ongoing now since 2-3 weeks now and we have three plants and all three are starting to wilt again. The leaves are drying (like it cracks when you press it) and becoming yellow. In some cases, it’s curling, we reckon it’s a different issue. We have attached some pictures for clarification.

We store our soil in big packs within the room itself, it is sealed but there is few aeration holes. We spray Naeem online 4 times a month and insecticides once a month.

We think it might be fungus gnats or a nutrient issue. Kindly advise.

Post by **roller24** » Sat Oct 08, 2022 8:10 am

Right off the bat, I would guess the nutrients are locked up due to some reason.
1. Soil PH?
2. over watering?
3. no oxygen reaching roots, looks like very little perlite in soil.
4. overfeeding.

Are you doing any of these, or checked these?

Post by **Munchy** » Sat Oct 08, 2022 9:18 am

additionally or related, are they root-bound?
if so, perhaps a quick transplant would be a good initial step to take,
get some fresh soil underneath them, with 25-30% added perlite
this may even be possible to do using the same pots if necessary and if pot space allows

Butcher Bob · Post by **Butcher Bob** » Sat Oct 08, 2022 10:00 am

What are you using for soil?
What nutrients are you using?...and how much?

Intrinsic · Post by **Intrinsic** » Sat Oct 08, 2022 10:47 am

^^This^^
And y'alls watering meathod?

Post by **roller24** » Sat Oct 08, 2022 10:50 am

growfaq/index.htm

Here is a good place to start. It's old and navigation may irritate, but tons of valuable tips all in one place.
growfaq/1331.htm common soil problems
growfaq/951.htm abuse chart

dill786 · Post by **dill786** » Sat Oct 08, 2022 4:12 pm

what type of soil is it??

dill786 · Post by **dill786** » Sat Oct 08, 2022 4:31 pm

there seems to be a lot of fungus gnats in the soil especially from B&Q lately..

Lrus007 · Post by **Lrus007** » Sat Oct 08, 2022 11:09 pm

ok we will start at step 1
lift each pot. if heavy do not water till light.
if light then water. i lift every pot every day works well.
that will help with the over watering question.

Post by **Munchy** » Tue Oct 11, 2022 9:09 pm

one common mistake I've noticed...
is when growers post a thread like this and then just never come back.