Lower leaves turning Brown and crispy (PICS)

some of the bottom and middle leaves are turning brown and drying out and becoming crispy. Please take a look at the pic's. I have shown one pic of the whole girl so you can see she's pretty healthy except for the brown leaves that are falling off. It it about 3 weeks into flower and the flowers are just starting to get decent size. Is this just normal? What can I do to remedy it?

How long has this problem been going on? a couple of days
What STRAIN are you growing? Shark tooth
What was the establishing technique? (seed or clone?) Clone
What is the age of your plants? 2 1/2 months (3 weeks in flower)
How Tall are the plants? 5 1/2 foot
What PHASE (seedling, vegetative or flower) are the plants in? Flower
What Technique are you using? (SOG, SCROG etc) Dunno
What size pots are you using? (Include how many subjects to pot) 5 Gallon pot, one to a pot
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?) Miracle Grow Potting Soil (this was used once before for 3 months, still has 3 month left of feed in it)
What Nutrient's are you using?How much of each with how much water? How Often? *Knowing the brand is very helpful* Blossom booster, 1 TBLSPOON once every 2 weeks
What is the TDS/EC/PPM of your nutrients used? N/A
What is the pH of the "RUN-OFF"? 6.8
What method of pH test was administered? Using Strips? pH pen? Electric PH tester
How often are you watering? 3-4 days or when lightweight and dry
When was your last feeding and how often are you feeding? last feeding (1 1/2 weeks ago) feeding once every 2 weeks
What size bulb are you using? 2 600 watt HPS
What is the distance to the canopy? 1 foot
What is your RH Factor? (Relative Humidity) 60%
What is the canopy temperature? 75-82
What is the Day/Night Temp? (Include fluctuation range) 75-82
What is the current Air Flow? (cfm etc.) I have a nice exhaust fan cant remember CFM
Is the fan blowing directly at plants? yes (oscillating fan)
Is the grow substrate constantly wet or moist? no
Is your water HARD or SOFT? City water not hard (I let it sit in a garbage can for 24 hours before use)
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? Tap (I let it sit in a garbage can for 24 hours before use)
Has plant been recently pruned, cloned or pinched? nope
Have any pest chemicals been used? If so what and when? No need, its indoors
Are plant's infected with pest's? Nope


Anyone know what happening here?
Any help is appreciated!
Whole plant (you can see she's healthy)

hello? guys? ladies?

Hi , when this happens on my plants , yet all looks healthy , i find that the plant is just shedding leaves that are covering budd sites , i see it alot

Thanks! so the only way to keep the leaves (AKA the solar panels for photosynthesis) would be to add a lower light or vertical light?

xxSpLaTTeRzxX said:

Thanks! so the only way to keep the leaves (AKA the solar panels for photosynthesis) would be to add a lower light or vertical light?

Click to expand...

, nope , the plant has made the decision it does not need them , it is surpless to requirements in the plants view , i only find this when the leaves are shading the bud sites....
ps my bulbs are vert in parabolic umbrella style hoods...

The high level of nutrients accumulates in the leaves and causes them to dry out and burn up as shown in your pic. You must flush with clear, clean water immediately to allow the roots to recover, and prevent further damage. Now find the cause of the high nutrient levels.)

i also notice in your listing that your fan is pointing directly at your plants , this can , if intense enough cause windburn.

DrFever said:

The high level of nutrients accumulates in the leaves and causes them to dry out and burn up as shown in your pic. You must flush with clear, clean water immediately to allow the roots to recover, and prevent further damage. Now find the cause of the high nutrient levels.)

Click to expand...

He's only feeding bloom booster once a fortnight ?

Clonex and DrFever! THANK YOU!!! I think the nutrients are in the soil, Their slow release nutrients, so the more water the more the nutrients release. If I let it dry out, the plants stop sucking nutrients and then I give it a good watering. think that will help?

I have only fed them nutrients once and that was 1 1/2 weeks ago and the soil was used once before (and it was flushed). Still think its a nutrient problem? Also my fan is oscillating (I think it may be on too hi thought) I Just moved it any everywhere the fan is hitting is looking like the pics. I think this might be wind burn!

I will test the soil for nutrients and lower the fan. This should be all that's needed? P.S. Thanks again. I love this site! everyone is great help here!

I have that problem too my leaves are turning brown and crispy their also curling what can I do????