Leaf damage on otherwise healthy plants - What's causing it?

[juz420]

Hey 420'ers, I have healthy plants however there is some leaf damage on them and I cant put my finger on what it is - has anyone had this issue before?
I have fungus gnats annoying the crap out of me and the plants, I have used diatomaceous earth to control them, it hasn't got rid of them completely but it is definitely under control, could it be something other than fungus gnats causing this damage?

leaf damage3.jpg

• juz420
• Jul 27, 2018
• leaf damage pests deficiencies bugs

Leaf Damage

leaf damage2.jpg

• juz420
• Jul 27, 2018
• leaf damage pests deficiencies bugs

Leaf Damage

Leaf Damage 1.jpg

• juz420
• Jul 27, 2018
• damage leaf pest pests

Leaf Damage

 

[Mr. Krip]

Looks most likely like thrips. Check the underside of the leaves for bugs and/or the larvae which are very small, but should be visible without a magnifying glass. Ways to control thrips include Neem Oil, Insecticide Soap & Spinosad (see Captain Jack's Dead Bug available at Homies!). I recommend the Captain Jack's since you have a pretty severe case!



K

 

[juz420]

Ive had them under a microscope, and checked the back of the leaf - no visible thrip!