Yellowish to orange new growth

I’m growing in coco/perlite mix. The problem is occurring in my veg tent. The new growth is doing some weird stuff. It started with one plant and seems to be spreading. Pics will be below. Environment is 75 degrees 60-65%rh. Fans are moving air around. Feeding with veg plus bloom at 600 ppms every 1-2 days. Transplanted from solo cups to 1 gallons when I noticed the problem originally but it hasn’t gotten any better. Is it some sort of fungus or is there a pest I can’t see? I’ve taken leaves and looked at them under the jewelers loop and I can’t see anything. Right now it’s only effecting 3-4 plants. I have 12 in the tent. Most in red solo cups. I’ve never experienced anything like this honestly. Any help would be greatly appreciated! Also, it seems to start at the top new growth and move down. Thanks.

Ok got an update. I looked a lot closer with my magnifying scope and there are some time of pest eating the F**k out of my plants. Need help identifying these and how to get rid of them. ASAP!

You've got russet mites. Wettable or micronized sulfur will eradicate them pretty quickly. 1 tbsp per 32oz spray bottle. Spray plants as thoroughly as possible.

This bottle will last a long time and is by far the fastest way to get rid of russet mites in veg. They should be gone in 1 application, but do at least 3 applications 3-5 days apart.

Wow, thanks so much. I forgot to mention, I started spraying sns 203 today. Gonna switch it to that stuff and hopefully it kills them all! I separated the effected plants as well but I think I’m gonna hit everything with that sulfur spray just to be safe.

Smokeman710 said:

Wow, thanks so much. I forgot to mention, I started spraying sns 203 today. Gonna switch it to that stuff and hopefully it kills them all! I separated the effected plants as well but I think I’m gonna hit everything with that sulfur spray just to be safe.

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I havent used SNS203 before but you probably want to rinse your plants down with plain water before applying the sulfur or it might react with the rosemary oil in the SNS. Maybe wait a few days before applying the sulfur just to be safe.