hi dude....
as u said on the first pics we can easily see the damage caused by bugs that suck the sap from your plant aphids can also sucks sap ....but the most problematic in view of the injuries is that it could be spider mites...... it's typical of their activity. https://www.growweedeasy.com/wp-content/uploads/2013/07/spider-mite-damage-cannabis.jpg https://www.growweedeasy.com/wp-content/uploads/2013/07/spider-mite-damage-cannabis.jpg
we can really see on the seconf if it's eggs or spider....do you have any scop or something for shooting with ??
it could be a big problem for ur grow ...!! especially in flow time it could be a nightmare
three advices first
Control the heat
Have lots of air blowing over the plants and top of growing medium but not too close or too long
Spray spider mites off the plants if you can...
then u will find here a lot of solution....especially neem oil wich are very good... But...!! u have to mix with black vegetal soap in order to correctly diluate her in water distillated solution oil + water alone are no good together ^^
https://www.growweedeasy.com/cannabis-plant-problems/how-to-get-rid-of-spider-mites
another solution that i recommend warmly to you...is to realise a big innoculation with tricoderma's beneficials....theay act as a mobiles nutirents so spores goes insides the veins of plantes to the leaves 😍 and will infect this shit....
take a look here in my main diary u have a diaporama and text ich explain how it s works
keep me in touch good luck💪