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: July 2017

Summer ’17 ABW report

My observations of the summer of 2017 very closely mirror those of my colleagues. In general, weevil damage in southern New England seems to be lower than we have seen in recent years. Samples received last week from our site in Bloomfield, Connecticut revealed very low counts at all locations except one.

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Second generation larval damage on the way?

If I were to rank this season among previous ABW seasons, I would say that this has been one of the easier years. I have really struggled to find weevils on many of our research sites (including in untreated check areas). I think that this is because turf managers have done an excellent job when it has mattered most: spring.

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Where are all of the Weevils?

The past month has been fairly slow for ABW activity. I have had more conversations with superintendents that are just not seeing the populations of adults that they are accustomed to seeing in the middle of the summer. I don't have an explanation as to why exactly that is. Sometimes I think I have a good understanding of this insect when scouting and making suggestions, and then WOW, think again, some damage shows up.

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Mid-Atlantic Report: Shifting Focus

We've reached the point in the season in the mid-Atlantic when we tend to see more of the damage associated with annual bluegrass weevil larvae feeding shift from poa annua to creeping bentgrass.

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