HELP! Spots on leaves and tiny tiny black beetle?

[Soybeansaregreat]

Spots on leaves all over plant. On front and backside. Notice tiny tiny shiny black beetles on back sides of leaves. Plant is a Blueberry, seed from Seedsman. Plant 9 ft tall, 7 feet wide. I’m in zone 5b.

 

[crucialbunny]

Sounds like flea beetles.

 

[TenTonBrick]

Yep, definitely sounds like flea beetles. They were terrible this year in my vegetable garden...all over my Brussel sprouts. I used diatomaceous earth and
removed all the straw I had down around them. Once I got rid of the straw that seemed to make the biggest difference....

 

[Soybeansaregreat]

That would be great if spots are due to flea beetles and not disease. I have a smaller CPD plant right next to blueberry plant and it doesn’t have the leaf spots. I did see a lady bug on it though. I get flea beetles every year on my eggplant and other plants. These seem microscopic compared to those. I didn’t see them hop either. Maybe they are just young ones. Thanks for the feedback.

 

[Rwise]

I am thinking of trying ISO 50/50 with water to see if that will kill them, sprayed on the under side of the leaves. I really dont want to spray this time of the grow, but I also hate these bugs.
I had the black ones before I move here, now I have white ones, damn tinny things. May note be the same bug, but they do the same thing, suck the juices from the leaves. This fall I plan to rack and burn everything I rack up within 50 feet of the patch and see if that helps next year.
Blues and purples seem to attract bugs more than others.