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: March 2015

Insecticide resistance in ABW – Part Two

Based on my observations through our own studies and conversations with colleagues, USGA agronomists and superintendents estimate that any golf course that has tried to intensively control Annual Bluegrass Weevil (ABW) for at least five years will have some level of insecticide resistance. With intensively, I mean multiple applications per year over large portions of the golf course.

Read More


As eager as every turf professional is to get the season started and break cabin fever, based on some discoveries on March 27th, this is also evident with ABW.

Read More

Adult Emergence, Don't Panic!

Before WeevilTrak™, there was more confusion as to timing and choice of insecticides to control the annual bluegrass weevil (ABW). This confusion led to overuse of insecticides, poor timing and application of the wrong product - often leading to poor control and insecticide resistance. While discussing this problem with a DuPont research manager, we developed the concept of WeevilTrak, providing timely information to the superintendent to effectively manage weevils and minimize pesticide applications.

Read More

Expect the Unexpected

This is the first year I will be participating in WeevilTrak™, though I have been an interested observer since the program's inception. I have been investigating ABW ecology and management for more than a decade in the New York metropolitan area, but this is my first season in Pennsylvania. So, what can I expect? From my studies in New York and New Jersey, I have learned that there are great differences in how individual ABW populations behave and develop.

Read More

Insecticide resistance in ABW

Insecticide resistance in annual bluegrass weevil (ABW) populations is a growing problem. It is a course-by-course issue based on excessive insecticide use and poor insecticide resistance management.

Read More

Don't Let Them Get Ahead of You- Scout!

As the snow has melted throughout Delaware, Maryland, Virginia and southern Pennsylvania, we have started to accumulate growing degree day (GDD) units.

Read More

Southern range: expect ABW movement soon

Winter is finally showing signs of loosening its grip on the Northeast, in spite of this photo of the Watchdog monitor I maintain in my backyard.

Read More

Don't get them angry!

The annual bluegrass weevil (ABW) is an insect that can get very "angry"- in regards to insecticide resistance that is.

Read More

As Winter Wanes, Whither the Weevil?

At Robert Trent Jones Golf Course in Ithaca, NY, a weather tracker stands vigil in a field of snow. Awaiting the accumulation of growing degree-days, it is ready to participate as one of 31 golf courses across 12 states of the Northeast that serve as WeevilTrak monitoring sites.

Read More

The ABW Primer

The annual bluegrass weevil (ABW) is a relatively new pest for much of the region I will be monitoring for WeevilTrak.

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.)