Nutrient deficiency or root rot

[genericsilverjunkie]

I've been having a lot of fungus gnats problems. Do you think it's root rot. The dude from built a soil says it's not.

 

[Creeperpark]

I've been having a lot of fungus gnats problems. Do you think it's root rot. The dude from built a soil says it's not.

It looks like you are over-watering the plants. Let the soil dry enough for a few bottom leaves to turn yellow. I see people trying to use water to keep the plants cool in hot conditions after the plants have enough water. When this happens the plant leaves start being over-hydrated and the soil roots lose oxygen and the plants become stressed. Let them dry out before adding water.

 

[exoticrobotic]

I've been having a lot of fungus gnats problems. Do you think it's root rot. The dude from built a soil says it's not.

Maybe root rot.... Maybe some mould under the fabric pots growing on the wood pallets from not enough drainage is causing the yellow leaves and fungus gnats. Lift up the pots and take a look.

They look nice plants, what are they?

 

[TanzanianMagic]

I've been having a lot of fungus gnats problems. Do you think it's root rot. The dude from built a soil says it's not.

Well fungus gnats would indicate that there are some decaying roots or other organic material around, which their larvae feed on. On the other hand, fungus gnats are not much of an issue at this stage of plant development, although they're lethal to unsprouted seeds.

However these plants are in early flowering, which is when the nitrogen deficiency often will show up. The completely yellow leaves that have no other tip or edge damage are clear shows of nitrogen deficiency/lockout. I'd say deficiency, because the rest of the plant looks great.

Nitrogen deficiency is also a sign of underwatering in plants during veg.

And although the grow bags are huge, so are the plants, so some rootbound issues may still be involved.

I would prune back all the non-essential branches - growing to the inside of the plant, the lowest small branches. And a quarter of the lowest growth on the major branches.

This will focus the plant's flowering more, as well as increase airflow, which may be a secondary issue, and may the reason for the fungus gnat presence.

And this being in a greenhouse, airflow within the greenhouse may be an issue too.

 

[Creeperpark]

Plants will wilt naturally in excess heat watered or not. Many growers including myself have mistaken the natural heat wilt as a drought wilt and water trying to minimize it. Big mistake and the result is overwatered plants. Since the plants transpire large amounts of water during the excessive heat I would NOT add any fertilizers until the temps are cooler. Be patient friend.

 

[genericsilverjunkie]

Maybe root rot.... Maybe some mould under the fabric pots growing on the wood pallets from not enough drainage is causing the yellow leaves and fungus gnats. Lift up the pots and take a look.

They look nice plants, what are they?

Ethos skunk hero, and purple zkittlez

 

[genericsilverjunkie]

Plants will wilt naturally in excess heat watered or not. Many growers including myself have mistaken the natural heat wilt as a drought wilt and water trying to minimize it. Big mistake and the result is overwatered plants. Since the plants transpire large amounts of water during the excessive heat I would NOT add any fertilizers until the temps are cooler. Be patient friend.

Plants will wilt naturally in excess heat watered or not. Many growers including myself have mistaken the natural heat wilt as a drought wilt and water trying to minimize it. Big mistake and the result is overwatered plants. Since the plants transpire large amounts of water during the excessive heat I would NOT add any fertilizers until the temps are cooler. Be patient friend.

Yeah I'm pretty sure it's over watering, the change of the weather did me in of course it's near August although. I went out and bought me a moisture meter

Plants will wilt naturally in excess heat watered or not. Many growers including myself have mistaken the natural heat wilt as a drought wilt and water trying to minimize it. Big mistake and the result is overwatered plants. Since the plants transpire large amounts of water during the excessive heat I would NOT add any fertilizers until the temps are cooler. Be patient frie I thi

Plants will wilt naturally in excess heat watered or not. Many growers including myself have mistaken the natural heat wilt as a drought wilt and water trying to minimize it. Big mistake and the result is overwatered plants. Since the plants transpire large amounts of water during the excessive heat I would NOT add any fertilizers until the temps are cooler. Be patient friend.

I think you're correct will change with the weather is what did it went from 100 to all of a sudden the 50 and no sun and rainy

Plants will wilt naturally in excess heat watered or not. Many growers including myself have mistaken the natural heat wilt as a drought wilt and water trying to minimize it. Big mistake and the result is overwatered plants. Since the plants transpire large amounts of water during the excessive heat I would NOT add any fertilizers until the temps are cooler. Be patient friend.

I think the weather change is what did it. It went from 100 degrees to suddenly 50 degrees with no sun and rain.” so I went out and bought me a Blumat Digital Soil Moisture Meter for Plants & Soil, next will be a blue lab pH soil meter.

 

[genericsilverjunkie]

Update.

 

[TanzanianMagic]

Update.

What you want is to be able to see the lower part of the stems clear through.

I would prune evertying below the red lines.

Those lowest parts arent'going to yield much, flowering will be taken up by extra flower growth on the higher branches, and they're obstructing airflow.

Basically you want to be able to see from one part of the greenhouse to the other, so airflow isn't obstructed.

I presume there is also a ventilator at ground level.

 

[HarleyJammer]

After surviving an EF1 tornado .. then 9 consecutive days of rain.. a few of my plants went totally Mopar 'Sassy Grass' Green.. 2 plants also showed mag def... I surmised it was overwatering and it booggered up the soil pH causing lockout.. or washed out all the nutes.. It took 2 weeks of throwing everything I had at it (Lime, Grow, Worm Castings, Fulvic/Humic, Kelp, Aminos, Micros, Sul/Cal/Mag, Recharge, Epsom salts) .. soil & foiler.. I kept at it until the new growth looked healthy green again. The older fans somewhat recovered but not looking like they will totally.

After straightening out the pH I tried Bio AG TM-7. After a couple applications things really started to get back to normal..