plant problems please help

I am just running into a problem with my grow both in veg and flowering. I have grown these strains before without issues but this time everything is going wrong and i can't figure out what is happening. First off i grow in coco and reuse it after finishing out a cycle. I run the material through a screen and then flush with hot water. I use advanced nutrients sensi coco ph perfect grow a & bfor veg with b52 at 1/2 strength. For flower I run advanced nutrients sensi coco ph perfect bloom along with b52 big bud and bud candy at 1/2 strength. Last week I sent pictures to advanced nutrients to ask them what I am doing wrong and they said I need to add more nutrients and follow the amount on the back. I have done half strength before and had no issues and I feel if I add more nutrients I might loose my crop. Please help!

broad mites/russet mites and spider mites. got a scope to check them for micromites?

Diabolical666 said:

broad mites/russet mites and spider mites. got a scope to check them for micromites?

Click to expand...

I do have a scope and did have spider mites but they seem to be gone at this point.

whats your enviroment ? lights, temps etc

Veg is t5 400 watts around 70 degrees and flower is four 1000 watt hps in a 10x10 tent. The temp is around 70 to 75

Some of the pics the temp looks somewhat higher than 75.Is there any air moving in the grow? Diabolical asked about environment - including humidity.

It's obviously responding to the light well and I don't see any signs of lockout.

How are you monitoring your watering?

By the looks of the tips of some of the leaves you got fermentation/composting going on in the medium.

Judging by the extreme curls in some of the smaller leaves increasing the fertilizer would be "unthinkable".

Honestly I don't know the humidity at this point. I really don't monitor that until a out 3 weeks into flowering. I do re use coco and I'm sure it still contains root matter which needs to break down so bird Mcbride that would make a lot of sense. Do you have any recommendations?

stephennagy said:

Honestly I don't know the humidity at this point. I really don't monitor that until a out 3 weeks into flowering. I do re use coco and I'm sure it still contains root matter which needs to break down so bird Mcbride that would make a lot of sense. Do you have any recommendations?

Click to expand...

I would just stay the course this time and next time heat sterilize the medium or let it compost out before you plant.

When I did soil during the eighties I had a big concrete slab that I'd spread the soil out over, 1/4"-1/2" deep and let the sun burn the crap out of it, etc then I'd use it. When I heat sterilized it in an oven...I can't remember the exact temperature but it was somewhere between 120F-190F, depending on the soil.

I've been doing F&D hydro since 1993 so other mediums...

bird mcbride said:

I would just stay the course this time and next time heat sterilize the medium or let it compost out before you plant.

When I did soil during the eighties I had a big concrete slab that I'd spread the soil out over, 1/4"-1/2" deep and let the sun burn the crap out of it, etc then I'd use it. When I heat sterilized it in an oven...I can't remember the exact temperature but it was somewhere between 120F-190F, depending on the soil.

I've been doing F&D hydro since 1993 so other mediums...

Click to expand...

Thank you!!

hotrodharley said:

Is there any air moving in the grow? Diabolical asked about environment - including humidity.

Click to expand...

I was thinking humidity too. I get appearance like that on new growth when my humidity is 20% and/or too much air movement even at higher humidity. But, the fact that he said he had mites, I think it's likely he still does.

I can see the bite marks on the lower leaves that diabolical pointed out. Next i see a lot of curling, which to me is indicative of GNATS. I had gnats before from the clone shop in Denver and they were a real bitch to get rid of and made my plants look exactly like that once they caught hold of the root system. They suck the nutes right out of the root system, their babies that is. The ones flying around are just spreading more eggs. It takes a broad approach to kill these. Fly tape, spray, and mosquito dunks from lowes.

bird mcbride said:

It's obviously responding to the light well and I don't see any signs of lockout.

How are you monitoring your watering?

By the looks of the tips of some of the leaves you got fermentation/composting going on in the medium.

Judging by the extreme curls in some of the smaller leaves increasing the fertilizer would be "unthinkable".

Click to expand...

I just check all my nutrients and it seem like the b52 for some reason smells bad. I don't know why but I feel that might be my issue