Yellowing Sugar Leaves

I'm hoping someone can help identify an issue with yellowing sugar leaves. Currently in week 6 of flowering. I noticed yellowing sugar leaves below the colas. It seems to spreading at a slow rate. I did get some nutrient burn in week 2, I'm not sure if it's related. It doesn't seem consistent with bud rot and I have other plants in the tent that are fine. I have been dealing with spring tails for 3 weeks, no insects on leaves.

The medium is coco and perlite in 2 gallon hempy style bucket. Feeding baseline Roots Organic Soul line. The strain is Purple Panty Dropper. I have about a week left before harvest.

What happens when your lights turn off? Does the temp drop a lot? If it does the plant can release excess salts as moisture on the end of the leaves. Do you see a big humidity spike?

Humidity is usually between 45% and 55%. I run a dehumidifier. Temp is controlled at 79. It drops down to 68 degrees at night. I'm running Led if that helps.

If you aren’t over feeding then my guess would be the 11 degree temp swing creating moisture on the tips. Next run try to keep that swing to 4 degrees or less and see if it helps

Thank you for the advice. My biggest concern was some kind of virus or fungus. I can't help but freak out about it.

How close are your grow lights to your plants, and what kind of lighting device are you using? If possible, please send us a picture of your set up.

I'm reluctant to believe that droplets of water are forming and magnifying light enough to burn before evaporating. Your strain might just be too close to the lamp.

The set up is a 3x3 tent with an HLG 350r (330 watts). It's at full strength and 18 inches above canopy. The yellowing started just above the middle of the plant. It seems to be spreading upward. There are a couple of fan leaves with a small yellow spot.

Gameofdeath said:

I'm hoping someone can help identify an issue with yellowing sugar leaves. Currently in week 6 of flowering. I noticed yellowing sugar leaves below the colas. It seems to spreading at a slow rate. I did get some nutrient burn in week 2, I'm not sure if it's related. It doesn't seem consistent with bud rot and I have other plants in the tent that are fine. I have been dealing with spring tails for 3 weeks, no insects on leaves.

The medium is coco and perlite in 2 gallon hempy style bucket. Feeding baseline Roots Organic Soul line. The strain is Purple Panty Dropper. I have about a week left before harvest.

Click to expand...

It's not from transpiration.

Gameofdeath said:

The set up is a 3x3 tent with an HLG 350r (330 watts). It's at full strength and 18 inches above canopy. The yellowing started just above the middle of the plant. It seems to be spreading upward. There are a couple of fan leaves with a small yellow spot.

Click to expand...

I suggest either moving the light source upward by a few more inches, or you could adjust the intensity of the light if your device has that functionality. Perhaps increasing air circulation may also help your plant by cooling it better.