Return to the Peonies Forum | Post a Follow-Up

Japanese Beetles stopped by Weedblock (followup) *It worked!*

Posted by tristate (My Page) on
Thu, Jun 24, 10 at 10:40

I posted a message on Peonies forum asking if anyone knew if Weeblock was effective against Japanese Beetles. I had covered a row of peonies w/it in anticipation of building a wall next season. (The row was 12 feet long x 4 feet wide with just a slit for each of the 7 bushes). I noticed no Japanese Beetles when I usually thought they'd be out- 1st&2nd weeks of June. I thought that was weird- people said just wait until flowers are gone and then they'd be out. Someone else said it might take longer for them to emerge b/c once they hatched, they'd have to crawl at least 1 1/2 feet to get from under the weedblock. (If they chose the wrong direction though, they'd have 2+feet before they ran into another plant).
Flowers have been completely gone for over a week now and STILL not even a sign of ONE. I didn't use any insecticide or milky spore and hung 2 pherome lures which caught some which I think may have been flying past.
Does anyone know if grubs were effected by last year's rain/cold (I'm in the Hudson Valley NY) so what I'm attributing to weedblock is actually a naturally phenomenon? Is it possible that I've killed off an entire season of beetles and stoppped the next generation of eggs being laid?!!

Follow-Up Postings:

RE: Japanese Beetles stopped by Weedblock (followup) *It worked!*

I think you were just lucky. I did not post on your earlier question because it would have sounded bad no matter how I worded it.

Although you may have blocked a few bugs the largest percentage would have come from the surrounding non blocked area. How many of the white grubs do you normally dig out from this area. July and August is the time to apply insecticide while the beetles are in the white grub stage.We do not have a major problem with Japanese beetles but I would like to know if they normally eat peonies in your area?

Just a tibbit. If you would happen to pick up a garden book from the early 50's the Japanese beetle that was shown is not the current bug. At that time the green scarab beetle was what was shown as Japanese beetles not the brown things of today.

RE: Japanese Beetles stopped by Weedblock (followup) *It worked!*

We've had a bad drought several years in a row that appears to have killed off the previous years' plagues of japanese beetles. I agree with the above poster- no way weed block would kill all the beetles!

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Peonies Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here