The last cuttings I got came with thrips, But I managed to get rid of them and they turned out just fine . I managed to catch it a bit earlier than you though (about 3 weeks into flower). Spinosad is supposed to be the best stuff to use as it is organic, but I wasn't able to find anywhere that sold it, so I had to find an alternative.

I used... Provado - Ultimate Bug killer (one application was all that was required)

The downside to using what I used is that although it is safe to use on vegetables etc.. it takes 2-4 weeks to not be harmful to humans depending on the crop. Which may be too late for you as you are in week 5.

Here's some links to the info I found useful when trying to fix my thrips problem.

Thrips! - Page 2 - The Garden's Cure

Thrips 101: Introduction to Western Flower Thrips - International Cannagraphic Magazine Forums

Spinosad Garden Insect Spray Hose End 16 oz. | AG Organics

It seems like everyone who uses spinosad says it works like a charm. Neem oil seems to have mixed reports as it works for some people and not others.

Hope this helps.
PhatJay Reviewed by PhatJay on . GOT THRIPS!!! HELP PLZ ASAP SO ive got Thrips and im at 5th week off flowering got quite a few if someone could please help would really appreciate it I wonder if anyone knows if ladybugs will kill thrips or maybe Spinosad Rating: 5