Help please, leaves brown dry spots!!!!

Twill420

Twill420

New Member
I have two atf's and two blueberry kush on day 5 of flower, on day 3 I had one plant start getting dry brown spots on the leaves. It's been higher than normal temps the past few days, up around 89, but normally I keep it 70-75ish. I fed them there first feeding in flower with half dose of nutrients on day 3, hoping the nutrients would help with the leaves but it didn't seem to help, I watered on day 4 and was wondering if I should add some cal-mag to this plants watering tonight. Any help would be greatly appreciated and I intend to keep this blog going all the way through flower to show the progress of this diagnosis for me and everyone interested! Smoke up my friends
 

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Twill420

Twill420

New Member
they were beautiful up until maybe 3 or so days ago and then this. I'm thinking a combination of the heat and prob the nutrients. We fed them Wednesday at half strength for their first feeding in flower. Should it have maybe been a quarter strength? Should I feed it a light feeding of cal mag today to see how it responds? I don't spray them once I flip them to flower but is that a good idea? If so, what are your recommendations, thegreensurfer?
 
Cannacat

Cannacat

Well-Known Member
Twill420 said:
they were beautiful up until maybe 3 or so days ago and then this. I'm thinking a combination of the heat and prob the nutrients. We fed them Wednesday at half strength for their first feeding in flower. Should it have maybe been a quarter strength? Should I feed it a light feeding of cal mag today to see how it responds? I don't spray them once I flip them to flower but is that a good idea? If so, what are your recommendations, thegreensurfer?
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You should keep giving veg nutes for the first couple weeks in flower, I made that mistake last time and had yellow plants by week 5, they need that N for the stretch, then gradually start introducing bloom nutes. You should be ok to spray them until they properly start forming buds. Silica is a great additive and also helps them deal with higher temperatures so maybe have a look at that.
 
Twill420

Twill420

New Member
Cannacat said:
You should keep giving veg nutes for the first couple weeks in flower, I made that mistake last time and had yellow plants by week 5, they need that N for the stretch, then gradually start introducing bloom nutes. You should be ok to spray them until they properly start forming buds. Silica is a great additive and also helps them deal with higher temperatures so maybe have a look at that.
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Thanks cannacat, good insight. I'm gonna check out silica and look into it! Will post follow up pics as this grow comes along
 
thegreensurfer

thegreensurfer

Well-Known Member
Twill420 said:
With straight water or with some sort of solution?
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Personally, I wouldn't spray anything unless you had to. I thought you were spraying something with the lights on, causing the bleached out spots on your leaf.

I agree with cannacat regarding the silica and the nute timing, potassium silicate to be specific. It'll help with drought, heat, and overall environmental stress. It's a very strong ph up so make sure you ph before watering. It can raise it well into the 9 range. You'll get the plant some potassium as well. Just be sure to add it first and mix very well before adding the rest of the nutrients

I've had significant differences in final quality due to improper nutrient timing. Veg nutes through week 3 of flowering, start bloom at week 3, reduce and eliminate grow nutes by week 4. Each strain is different but this is a good general rule.
 
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