Yellowing opinions?

[Koondense]

Hi there,
I have a big super-autoflowering plant outdoors(Muay Thai sativa), that is in full bloom and started fading.
Yellowing started around two weeks ago, it started on fan leaves' veins and spread onto whole leaves, so had to pull some dead ones.

Here's the situation from this week:

Photo is blurry, but yellow spots and the fade are visible. No pests visible, at least I didn't catch any.

Weather's been shitty, I don't remember such a wet summer. Rains are frequent and sunny days are not many.

I suspect N deficency, but I don't know if it's smart to add much N at this stage of flowering, she's around half way, will probably finish in end september.

I'm gonna put some bloom mix to her and apply light foliar feeding, I hope it will help her recover.
Please help me save this monster


Any thoughts are very appreciated, thanks.

 

[Dave Coulier]

Hi there,
I have a big super-autoflowering plant outdoors(Muay Thai sativa), that is in full bloom and started fading.
Yellowing started around two weeks ago, it started on fan leaves' veins and spread onto whole leaves, so had to pull some dead ones.

Here's the situation from this week:
https://www.icmag.com/ic/picture.php?albumid=53908&pictureid=1304746View Image
Photo is blurry, but yellow spots and the fade are visible. No pests visible, at least I didn't catch any.

Weather's been shitty, I don't remember such a wet summer. Rains are frequent and sunny days are not many.

I suspect N deficency, but I don't know if it's smart to add much N at this stage of flowering, she's around half way, will probably finish in end september.

I'm gonna put some bloom mix to her and apply light foliar feeding, I hope it will help her recover.
Please help me save this monster


Any thoughts are very appreciated, thanks.

Your diagnosis sounds good, but Id go ahead and give her some more N. You've got at least a month to go according to you, and I know Id never want to starve my ladies that long.

 

[RetroGrow]

Looks like something's been munching on them. Thrips, maybe?

 

[iTarzan]

How tall is it?

The reason I ask when I tried autos they only got about 1-2.5 feet tall. When it rained the hard rains would splash dirt and mud and water and water spot the hell out of the leaves. The buds actually got dirty with splatter and sucked. I grew them in 5 gallon buckets with the bottoms removed so they were in contact with the ground. This raised them off the round more and they turned out OK.

They looked water spotted and a bit nutrient deprived. Give them some flowering ferts that have a bit of N too. They will produce. They could have had a better yield if you kept them fed better but you didn't reduce that much. Especially if you give it some food now.

You can't flush in the ground in natural soil plants. You can't do it by starving them either. So feed them a little.

 

[Koondense]

Cheers,
maybe there are some thrips(did not find any) but only on this plant. I have another besides(not same strain) and it's looking no prob.
This one is tall around 2,5m so 8 feet, at her 110 days of life. I'm expecting her to go at least 145 so feeding will be necessary.

Is it safe to spray her with pesticide(K salts soap) at this stage of flowering? Can it be mixed in foliar feed?