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 2021

In central and northern New Jersey ABW spring generation close to complete for 2021

In central and northern New Jersey, it is time to scout for and, if necessary, treat against the adults of the annual bluegrass weevil spring generation provided the population is still susceptible to any of the adulticides.

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No matter the pressure, stay vigilant

It has been some time since my last blog, which usually means lots of things have been happening in the lab and field. Although our lab has been extremely busy with research and evaluating insecticide trials, it has been extremely quiet as far as ABW activity.

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Large larvae and new adults occurring in Virginia – early June

As of June 10, 2021, WeevilTrak annual bluegrass weevil (ABW) monitoring in Blacksburg and Charlottesville, Virginia is indicating a flush of new adults crawling over greens. A peak in 4th and 5th instars is also occurring based on the soil plugs. Damage from these large larvae is evident in some spots around the golf course.

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ABW Larvae Escapes 2021

ABW has been and will likely continue to be one of the most intractable insect pests of fine turfgrass throughout the Mid-Atlantic and Northeast regions. Sometimes, I see breakthrough with a well-timed application regime with the proper insecticides. In this blog, I will try to explain the reasons why I feel we see isolated outbreaks in golf course turf.

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