Can someone help diagnose

Howdy. I'm about two months into a grow and outdoors. The light cycle has just started the flowering phase phase and I've been having problems with lower tiers of leaves yellowing and wilting.
Looks like tiny brown spots at first, followed by wilting and finally, death.

Take a look for yourself
Any assistance is greatly appreciated. This isn't my first run, but I know I still have plenty to learn.

Female 1
Female 2

Several others growing in close proximity, but showing no signs

Their are post on here about that. My guess is that the plant is feeding off itself putting more into the flower stage.

Check for bugs. Flip the leaf over

What are you feeding her?

I look for bugs constantly and the only way I'm missing them is if their too small to see.
Couple aphids and those brown bugs that usually congregate on the stem and rotate around the stem to avoid you. Always kill insects.

I have also noticed what look like slug (or catepillar?) trails, only scattered here and there and not one single, consistent line.

The water here is too alkaline (8.0), so I've been buying distilled or using tetra Easy Balance to lower the the pH of the water. Only two plants, Female 2 included, get that water, Female 1 is mostly distilled.

All purpose plant food with micronutrients. 24.8.16.
Haven't fed in a week or 2, will be switching to a blooming mix.
Used miracle grow soil and added some heaps of a coffee based compost.

Are the black bugs thrips?

American420 said:

Howdy. I'm about two months into a grow and outdoors. The light cycle has just started the flowering phase phase and I've been having problems with lower tiers of leaves yellowing and wilting.
Looks like tiny brown spots at first, followed by wilting and finally, death.

Take a look for yourself
Any assistance is greatly appreciated. This isn't my first run, but I know I still have plenty to learn.

Female 1
View attachment 3281773 Female 2View attachment 3281774

Several others growing in close proximity, but showing no signs

Click to expand...

looking outdoors i always get a few leaves like that i call them the weather damaged leaves lol i have a few over my outdoors but rest the plants looks awsome had a few hots dayz with some rain wen the leaves turnt up so im gunna go with weather damage lol

I don't believe it's thrip. They're about an inch long, capable of flight, dark brown and always on the stalk. First insect I've seen actively avoid detection by attempting to stay out of sight.

U seem to be in need of nitrogen... And as for distilled water ( no, bad,stop) its missing important minerals... Rain water should be around the right level... Ph down is easy-to-use an can b made from common goods..(will re-comment with something to use) what r u feeding her?

ph down - lemon juice 1tbs per gallon

Lemon juice safe for use? Anyone with first hand experience on that one?

Try some cal mag, had a very similar looking problem looked like a calcium deficiency. Brought some cal mag and problem solved!

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Lol yes lemon juice.... An ive seen it used in hydro as well as soil.... But if u wish to ask google it will tell u the same, well and that battery acid will work but i dont trust that method