Yellow with rust spots

knnthc93

Well-Known Member

Jun 11, 2012

• #1

I took a look at my plants today and the lady's are not looking so well. If anyone knows whats going on and how to deal with it please help me. Its in roots organic soil and ive been watering with tap water that i bubble and ph 6. some times I add some tea with general organic forest humus. I live in southern California, just so you guys know the weather. Thanks guys

 

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scroglodyte

Well-Known Member

Jun 11, 2012

• #2

some times I add some tea with general organic forest humus




what tea, and what is "sometimes?"

 

knnthc93

Well-Known Member

Jun 11, 2012

• #3

Twice, plants are 5-6 weeks old. Forest humus, rainbow mix grow, and carboload is the tea. Two handfuls of humus, little handful of rainbow mix

 

knnthc93

Well-Known Member

Jun 11, 2012

• #4

I also added extra n and k in the bottom of the pot

 

knnthc93

Well-Known Member

Jun 11, 2012

• #5

Im sorry n & p

 

chickenpoop

Well-Known Member

Jun 11, 2012

• #6

picture 3 looks like powdery mildew... that rust might be downey mildew

 

knnthc93

Well-Known Member

Jun 12, 2012

• #7

What about the yellowing?

 

knnthc93

Well-Known Member

Jun 12, 2012

• #8

possibly a mg def.? Bump

 

Nightmarecreature

Active Member

Jun 12, 2012

• #9

Magnesium deficiency!

"Magnesium deficiency will exhibit a yellowing (which may turn brown) and interveinal chlorosis beginning in the older leaves. The older leaves will be the first to develop interveinal chlorosis.Starting at leaf margin or tip and progressing inward between the veins The leaves curl upwards."

 

scroglodyte

Well-Known Member

Jun 12, 2012

• #10

looks like Mg def, but why..............
i think you did it. with the feeding. a "handful"...........a "little extra." you are at the root of this problem, imo.

 

Nightmarecreature

Active Member

Jun 12, 2012

• #11

Once more thing. Anything above 6.5 PH will unlock Magnesium anything below 6.5 will lock out Mag. Thats why it's a good idea to range your PH a little bit.

 

scroglodyte

Well-Known Member

Jun 12, 2012

• #12

scroglodyte said:

looks like Mg def, but why..............
i think you did it. with the feeding. a "handful"...........a "little extra." you are at the root of this problem, imo.

Click to expand...

with that said................re-pot. be more precise with your grow. less is more.

 

knnthc93

Well-Known Member

Jun 13, 2012

• #13

Tjanks scrog. How can i help your rating go up? You and a few others on here are where i get my grow knowledge from

 

knnthc93

Well-Known Member

Jun 19, 2012

• #14

Also is it normal for the tips of the leafs to turn to the right in a 90 degree turn?

 

90cody

Active Member

Jun 19, 2012

• #15

knnthc93 said:

Also is it normal for the tips of the leafs to turn to the right in a 90 degree turn?

Click to expand...

normally due to nutrient issues

as for the OP

i had a very similar if not exact problem, tried everything , my plant is now is nearing harvest and its looking pretty good.. but i never could figure out what was wrong with it and it still has the problem, ive tried everything , just never worked.. here is a link

https://www.rollitup.org/marijuana-plant-problems/150004-plant-moisture-stress-symptoms-solutions-169.html

 

knnthc93

Well-Known Member

Jun 19, 2012

• #16

Im only been giving them water, I did mix about a cup of extra nitro and phos. I dont think it is something with nutrrients