Looks very healthy. keep up the nice work.
Not sure if you can get it where you are, but this product has gotten pretty good reviews. I use it personally, though I haven't used it to battle anything active, just proactive. Supposedly is fine in flower, though I wouldn't.
https://www.lostcoastplanttherapy.com/products/12oz-bottle
Bummer! For IPM I'm using Big Time Exterminator, Regalia, M-PEDE, Triact-70 individually, once a week in veg. I'm spraying the plants with Microthiol Dispress (sulfur) right before the go into flower. Then I'm using Azos, Mykos and Terra Grow weekly in flower to keep the coco healthy. I don't know if this will thwart thrips but so far so good.
Is garlic hard to grow? I've never grown anything under ground.