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 2018

Spring ABW generation approaching adulthood in New Jersey

In central and northern New Jersey, the annual bluegrass weevil (ABW) populations are slowly approaching the adult stage. On Tuesday, June 19 at Preakness Hills Country Club (Wayne, northern New Jersey), we found anything from first instar larvae through to young (still reddish) adults but with the majority of developmental stages being fifth instars and pupae. It can be expected that new adults will start to show up in significant numbers on most golf courses in central and northern New Jersey in the last week of June and peak in the first week of July.

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Don’t let your guard down against ABW

The first generation of annual bluegrass weevils appears to be winding down in some parts of southern New England, and just reaching its peak in some of the cooler areas. The worst may be over for many of you now, but remember that weevil damage can occur anytime from now through the middle of September.

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Be vigilant before ABW summer damage appears

Although there has been some rainfall out west, it is nothing compared to what we saw during the month of May. As mentioned in the previous blog post, severe annual bluegrass weevil (ABW) damage at both northern and southern sites followed almost immediately after the excessive rainfall observed last month.

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WeevilTrak Update from the Mid-Atlantic

A lot has happened since my last WeevilTrak post, including the completion of many of our chemical trials, and the appearance of annual bluegrass weevil (ABW) damage in many areas. The weather has, more or less, returned to normal, and growing degree day (GDD) accumulations are more consistent with years past. In fact, the late start to the season was overcome by the end of May, and we now sit ahead of past year GDD accumulations.

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Wet, Whacky and Weevilly

The month of May was marked by more than 10 inches of rainfall for most of the Mid-Atlantic region, and the Southern Northeast region. This weather pattern did not and will not stop the annual bluegrass weevil (ABW) for doing their thing.

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