What is my problem?

[cture]

2x 600 hps
Coco
4.5 weeks of flowering
Feeding daily 1300ppm +-100ppm (1800microsimens) PH 5.8
Foliar spray daily Growth exel PH 5.5 300ppm (500-700 microsimens) (Last week added magnesium sulphate to the foliar spray PH was around 6.5 and 700-800ppm sparayed for couple of times then discarded)
What are the possible causes of my troubles could be.
Spots on the leaf and reddish stem

cture Reviewed by cture on 11-20-2008. What is my problem? 2x 600 hps Coco 4.5 weeks of flowering Feeding daily 1300ppm +-100ppm (1800microsimens) PH 5.8 Foliar spray daily Growth exel PH 5.5 300ppm (500-700 microsimens) (Last week added magnesium sulphate to the foliar spray PH was around 6.5 and 700-800ppm sparayed for couple of times then discarded) What are the possible causes of my troubles could be. Spots on the leaf and reddish stem Rating: 5

[ryda99]

i think im having the same problem

[headshake]

can we get some whole plant pics please?

-shake

[cture]

More photos

[cture]

Rusty spots?

[Weedhound]

pests? Abnormal ph? k def? Or maybe just too much "stuff" sprayed over the leaves too often? And in coco known for its own problems.

I'd certainly stop foliar spraying your crunching leaves and adding to the problem. Then I'd start looking around for someone who works in coco because that looks like a ph/def issue (unless it's pests just attacking one part of the plant which would be even more odd) and figure out exactly what your ph should be and what it is.

[Weedhound]

Sorry I'm not of more help but I don't work with coco and don't want to give you the wrong info....but someone who works in it will know hopefully.

[stinkyattic]

Big plants, small pots, and running a coco grow with a non-coco nutrient. Are you supplementing with any calcium source? If not, start now.
I've got no experience with that foliar product you are using. The upper parts of your plants look really good but my instinct says that won't last. You can't really rely on foliar feeding, and trying to do it right thoruhg flower is asking for mold problems.
Please fill out the troubleshooting form completely.

[cture]

E-indoor
E-coco
E-TAP Water source
E-Source water pH 7
E-Age of plant 4weeks of flowering
E-Advanced Nutrients Micro Grow Bloom/B52/mother earth teabloom/Big bud/Super bud bluster/Carboload.
E-Daily 1200-1600ppm
E-2x600hps 15-20inches away
E-30-32 celcium DAY, 20-24 celcium at night
HD-22-24
E-20% Relative humidity
E-12/12 Lighting schedule
E- Open window Type of ventilation your room has
TR-Media was thoroughly flushed to a 0 run off

[stinkyattic]

Yeah, you are running rather warm, but I'd switch to a coco specific nute or start running calmag in your nutes right away no matter what. Also, the correct pH to run coco at is lower than soil, so you should mix up your nutes and then check and adjust them down to 6.4-6.6 or so.