Return to the New England Gardening Forum | Post a Follow-Up

 o
UMass Extension Landscape Message July 25, 2014

Posted by claire z6b Coastal MA (My Page) on
Fri, Jul 25, 14 at 17:02

UMass Extension Landscape Message July 25, 2014

"Insects

White Grubs

I saw European chafer adults flying in mid June, and have seen oriental beetles and a few Japanese beetles flying since early July. Sadly all these observations were in my own yard. The point is that the beetles are right "on schedule", which means many of the females are laying eggs now. That means that we are in a good period to apply a neonicotinoid to control the grubs that will soon be hatching from those eggs. Remember, however, that all the neonicotinoid labels specify that you should not apply the product on plants where bees are foraging. Since this seems to be a bumper year for clover in lawns, you need to be particularly careful and pay attention to details. (Studies conducted in Dr. Dan Potter's lab at the University of Kentucky indicate that the impact of neonicotinoids on honey bees and other pollinators can be greatly reduced in lawn settings by mowing just before the application - at a height that removes the clover blossoms.) However, scientists are still trying to determine the impact of the neonicotinoids on flowering trees and shrubs that might be located near the turf application. "Discretion is the better part of valor", so in my humble opinion, when in doubt, you probably should avoid or delay the application until the trees or shrubs are no longer flowering."

Report by Dr. Pat Vittum, Professor & Extension Entomologist, UMass Stockbridge School of Agriculture and Interim Director, UMass Center for Agriculture Food and the Environment


Follow-Up Postings:

 o
RE: UMass Extension Landscape Message July 25, 2014

  • Posted by claire z6b Coastal MA (My Page) on
    Fri, Aug 8, 14 at 18:21

The August 8, 2014 Landscape Message is posted. Time to slide down the page.

Claire


 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 New England Gardening 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