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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.

Latest Posts

Timing adulticides was a shot in the dark: better to rely on larvicides this spring

At Pine Brook Golf Course, annual bluegrass weevil adult numbers determined by soaping have been low all spring (no higher than 0.67 per 1 ft.2 on the fairway).

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Annual bluegrass weevil update for May 3, 2020 in Virginia – Small larvae are abundant in Roanoke and Blacksburg samples this week

As of May 3, 2020, good degree days (GDD) are 365, 240 and 175 GDD, respectively, as you move up in elevation from Richmond, Roanoke to Blacksburg.

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Scouting for adult weevils in western New York

It is Monday morning, May 4, 2020. My first blog ever. Most superintendents with whom I communicate state that they wanted to wait for their first adulticide to whack the weevils. I agree. As you would expect, on the near 50° days when the sun came out, I could vacuum a low number of weevils. Every day this season, when scouting for adult weevils, I've collected a low number of weevils. It's when numbers go up and stay up, that I recommended an application based on WeevilTrak recommendations to nuke the adults.

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Are we at the peak of annual bluegrass weevil adults and when will larvae start to show up?

As many of you follow the news, you hear terms typically used in statistics classes like peak, plateau, spike, curve, and similar when trying to predict something based on previous events or data.

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Adult bluegrass weevil (ABW) update for April 19, 2020 in Virginia – Adult peaks and first larvae of the year found

As of April 18, 2020, good degree days (GDD) since March are quite variable across the state of Virginia.

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April annual bluegrass weevil in North Carolina

In the last few days, sites in Cashiers and around the Hendersonville area have seen increased numbers in adults so it is likely time to start planning your next (or maybe first) application.

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Best soaping practices and discrepancies between phenological indicators and growing degree days

Research clearly shows that soaping is more effective, less variable and less affected by weather than vacuuming.

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How to live with restrictions during COVID-19 pandemic

With no golfers on courses and staff limitations for course maintenance crews, it is a good time to think about streamlining operations, especially if you have to deal with financial and/or staff limitations during the earlier part of the season.

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Annual bluegrass weevil season 2020 is about to start in New England

In southern New England, the annual bluegrass weevil (ABW) season is just around a corner.

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WeevilTrak Blog for April 7, 2020: Holding Pattern

The growing degree day (GDD) accumulations in March had Pennsylvania and Ohio tracking for a very early start to the annual bluegrass weevil (ABW) control season.

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