WeevilTrak Blog | GreenCast | Syngenta
Welcome to the WeevilTrak℠ blog, offering you updates about annual bluegrass weevil (ABW) from industry leading researchers. This blog will provide you with timely ABW activity across the north east as well as advice on scouting and controlling them using the Optimum Control Strategy.

Archive: June 2016

ABW are Completing the First Generation in Southern New England

Annual bluegrass weevils (ABW) are completing the first generation in southern New England even as I type. We are beginning to see new adults at most of our study sites, and they will be mating and reproducing within the next week or two.

Read More


First thoughts after a crazy ABW spring season in New Jersey

After the busiest annual bluegrass weevil (ABW) spring season ever combined with crazy spring weather that made predicting populations rather challenging, I finally have a little time to summarize.

Read More


The problem with pupae….

This spring was unusual, though as we approach July, ABW stages appear to be more in-line with previous years. We will have completed Generation 1 by the end of the week in many parts of Pennsylvania. But I would expect that many populations in the Pittsburgh area still have a decent percentage of insects in the pupa stage.

Read More


Larvae on the move in New England

We have been processing the samples from one of our field trials this week, and have noticed some things that are a little unusual relative to annual bluegrass weevil larval activity. Normally, we see much more activity from larvae feeding along the edge of a fairway in the spring. But this year in one of our trials, we found significantly more larvae in an untreated plot that was 25 feet into the fairway from the rough.

Read More


As they say in New England, “If you don't like the weather...”

The week of May 15 was cold, so the weevil larvae just weren't growing much. Then, on May 22, the thermostat turned up. Since the larvae would begin to grow quickly, we moved the flag to Stage 3 to apply Ference® insecticide. Ference is the perfect solution for the situation we are in.

Read More


Buckle your seat belts, here we go!

Samples sent to us this week from around southern New England have confirmed that ABW larvae are finally hatching and becoming active. After several weeks of seeing only an occasional second instar, this week we saw lots of third instars and even a few fourth instars.

Read More


© Syngenta. Always read and follow label instructions. Some products may not be registered for sale or use in all states or counties and/or may have state-specific use requirements. Please check with your local extension service to ensure registration and proper use. Scimitar GC is a Restricted Use Pesticide. Acelepryn and Ference are Not for Sale, Sale Into, Distribution and/or Use in Nassau, Suffolk, Kings and Queens Counties of New York State unless permitted under FIFRA Section 24(c) Special Local Need Registration. The trademarks or service marks displayed or otherwise used herein are the property of a Syngenta Group Company or their respective third party owners.

(This site has attempted to provide the most accurate, timely information possible on this site. The descriptions, pictures and other representations of products and treatment recommendations on this micro-site may contain inaccuracies and errors. The site owner does not make any warranty or representation with respect to the accuracy or completeness of any such information, and all users of this site should consult their own specialists regarding application decisions and timing.)