Plants Dying in 1st Week of Flower - HELP!

[palestar]

Hey Guys - I'm having some major issues with my DWC Hydro grow. I'm currently 34 days in and the plants were switched to Flower 4 days ago.

I have 2 Chiesels, 3 Blue Mystics and 3 A-Trains.. All Feminized and hatched from seed.

1000w Light
2x 265 CFM Dayton Exhaust Fans
Canna Aqua Nutes
4x4x4 Grow Cab
Temps are 68-75
PH is 5.9/6.0
PPM is at 1200

Things were going great to start, no issues.. over the past few days though the plants have started to sag and the leave tips were curling under. Now they are starting to show marks on some of the leaves.

I'm starting to think I might have some sort of pest issue.. Last week I noticed 1 green wasp inside the tent, now there are 5 or 6 and a bunch of dead ones on the light glass. I don't think they are an issue themselves but probably there because of something else (mites? gnats?)

Anyway, I really need help! I've attached a few photos which hopefully show whats going on. Doesn't seem to be a PH, PPM or Temp issue as they are all in check. I just flushed the water before flowering and put in fresh nutes.

Thanks for any assistance

 

[palestar]

Okay let me try the images again, those are too small to see!

 

[fonzee]

maybe you've switched to bloom nutes and started on full dose?

 

[palestar]

maybe you've switched to bloom nutes and started on full dose?

They plants were at 1000PPM in Veg and were doing fine, switched to Flower with fresh nutes at 1300ppm which seems reasonable to me, but maybe I'm wrong

 

[palestar]

Forgot to add humidity is at 50% give or take..

 

[bobman]

Well, first off they look good too me. This is an imperfect environment for a plant so there will be little marks and such until you really dial it in. The key is, is it really a serious problem that's going to spread. One thing I learned when I made the switch from soil to hempy is that a plant in flower is much more touchy. I can be real lax on a plant in veg with ph and food and never a sign of trouble but that same plant in flower is going to be show signs fast. I would just make sure your in you have it in an ideal environment as possible regarding ph and such and watch it.

 

[resinryder]

They plants were at 1000PPM in Veg and were doing fine, switched to Flower with fresh nutes at 1300ppm which seems reasonable to me, but maybe I'm wrong

Yup.
They don't all of a sudden jut start using higher levels of nutes just cause you turn the lights back 6 hours.

 

[joe fresh]

yeah i would say over fert as well

 

[palestar]

Thanks for the replies guys, would over fert be the cause of all the issues I'm having? Droopy dried-out leaves, tips curling under..

Does anyone have any thoughts on possible pest infestation? I've never had any kind of wasp or anything in there before, it mus be coming in there for something!

 

[Grass Lands]

yep, back off the nutes a touch...I usually run 800PPM tops in veg and usually a 1000PPM tops in flower...sometimes less is more...

Peace
GL

 

[resinryder]

yep, back off the nutes a touch...I usually run 800PPM tops in veg and usually a 1000PPM tops in flower...sometimes less is more...

Peace
GL

Ding, ding, ding. Give that mam a blunt!

Question to the OP. You just put them into bloom. Are you still using veg nutes or did you start them straight into bloom nutes?
Looks like they are straight over nuted.

 

[fonzee]

its not the PPMs, its the usage of a new nute in such concentration.
When you start using a new nute you should use it 1\4-1\2 strength first, and build it up.
You should GRADUALLY move from one nute to another.

 

[Grass Lands]

its not the PPMs, its the usage of a new nute in such concentration.
When you start using a new nute you should use it 1\4-1\2 strength first, and build it up.
You should GRADUALLY move from one nute to another.

I was having crappy results with PBP, I switched to Fox Farms (I've used FF nutes in the past) went to my normal regimen with no issues...I didnt gradually move into the new nutes..its all about knowing what your plants want, some plant eat more, some eat less.

I have a AK Cherry pheno that is finicky as fuck..hit her with more then 600PPM in veg or flower and she freaks...on the other hand I have my Old School Lemon Skunk cut and a Purple Dragon cut that loves to eat, back off them one bit and they will turn pale green in a heart beat...

 

[PetFlora]

Once the flower phase begins the hormones change radically, plants excrete waste via the roots (they serve two functions- uptake and elimination). The resulting pH can be several full points above 6.0. The ppms will rise as well, and its all toxic runoff.

In bloom, you must use a separate rez and D2W.