Source
LongUsernameUSDA 5a•

Pyrethrum works and is organic. Mix with Neem oil to be more effective. That's how I'm saving my Edamame. Pyrethrum breaks down really fast though, so you'll have to spray many times during the season.

Otherwise, if you don't care about organic use Permethrin: it's synthetic Pyrethrum and has a longer effective time.

3
huntin-is-livin•

I'm losing the battle right now to cucumber beetles :(

2
barneytoeOP•

Original here https://www.reddit.com/r/gardening/comments/4jr5wj/japanese_beetles_war_of_2016_has_begun_denver_co/?ref=search_posts

1
BoldSpotZone 6A•

It's a constant battle against those litle assholes.

1
iandcoreyMaryland 7b•

Lawn looks good tho. I wonder if there's a correlation.

1
notgonnaargue•

Try Surround WP (wettable powder). It puts a layer of clay on the leaves of the plant, and that's a mechanical barrier to JB's. It's organic AND effective. Downside: requires reapplication after rainfall.

1