WeevilTrak Blog | GreenCast | Syngenta

You must subscribe to WeevilTrak to read updates from our researchers on the WeevilTrak Blog. Please register or login to GreenCast to continue reading.

Now Showing: Posts by Dr. Tom Kuhar 44 Posts

< Return to Blog Home

Next generation ABW adults have emerged in VirginiaJune 15, 2022

Last week we saw a flush of new ABW adults occurring on golf courses in Virginia. We certainly advise sampling for adults and treating as needed with adulticides.

The ABW frass has hit the fan in southwest VirginiaMay 26, 2022

Be on the lookout in Virginia. We’re seeing a mix of adults and larvae of all sizes.

Annual bluegrass weevil still very low in Blacksburg, VirginiaMay 16, 2022

We saw our first tiny ABW larvae this week, only a single one. Our recommendation is to scout for Stage 3 in western ridge and valleys of Virginia.

Annual bluegrass weevil activity jumped at our site in Blacksburg, VirginiaApril 25, 2022

As predicted in my previous blog last week, we are in Stage 1 of the weevil control program, where adulticide applications should be considered.

Still not much weevil activity at our site in Blacksburg, VirginiaApril 18, 2022

Is it a low year for weevils or are we about to find some late bloomers coming in late April? We will keep you posted.

Spring has sprung but the weevils have not in Southwest VirginiaMarch 25, 2022

As of March 25, 2022, in Blacksburg, Virginia, we’ve only accumulated about 39 GDD since March 1. We’re a little behind normal, but there are definite...

Some ABW adults waking up in Blacksburg, VirginiaMarch 14, 2022

Adult annual bluegrass weevil activity appears to be starting, but, as we know, March weather can change in a heartbeat, and as of Saturday, March 12...

ABW tracking has commenced in southwest Virginia – no sign of the little buggers so farMarch 8, 2022

We have sampled for ABW twice at the Blacksburg Country Club (superintendent Bill Keene), and not found any ABW adults, despite some recent warm sunny...

Dwindling ABW populations in Blacksburg, Virginia – Signing off for the yearSeptember 24, 2021

As we have seen dwindling adult numbers as well as no sign of new larvae as we head into late September, we will stop our WeevilTrak monitoring at this...

Very little ABW activity occurring in Blacksburg, Virginia – Mid AugustAugust 17, 2021

There was a spike of new ABW adults in the first week of August at Blacksburg Country Club, but this apparently did not lead to any significant larval populations.

Mostly adult activity occurring in Virginia – early JulyJuly 12, 2021

As of July 1, 2021, we are seeing only moderate-to-low ABW densities and detecting mostly adults at Blacksburg Country Club, but reproduction is most certainly occurring.

Large larvae and new adults occurring in Virginia – early JuneJune 14, 2021

As of June 10, 2021, WeevilTrak annual bluegrass weevil (ABW) monitoring in Blacksburg and Charlottesville, Virginia is indicating a flush of new adults...

New teneral ABW adults found in Blacksburg first week of MayMay 13, 2021

Pulling turf plugs from the fairways at Blacksburg Country Club last week (May 5) revealed a reasonably high density of annual bluegrass weevil (ABW)...

High ABW larval densities in Blacksburg, Virginia trigger first larvicide applicationMay 5, 2021

Blacksburg Country Club owed a large burst of ABW larvae last week and larvicide applications were made at this course this week.

First ABW larvae of the year found in Blacksburg, VirginiaApril 16, 2021

After a period of fluctuating temperatures in the month of April in Virginia so far, the growing degree days have pretty much reached the threshold for...

ABW activity subsided with a cold week but sampling is advised with the warm week ahead in Virginia – Stage 1April 6, 2021

Despite a cold week to end the month of March, which slowed down any adult annual bluegrass weevil (ABW) activity in Virginia, the growing degree days...

Early and alarming ABW activity seen in Virginia – Stage 1March 24, 2021

Growing degree days may not have accumulated that much in Virginia, but other indications are suggesting that a first spray application to target ABW...

ABW tracking has commenced in Virginia – very little activity so farMarch 11, 2021

As the week of March 6 has brought some warm weather to Virginia ABW have started to appear slowly.

Recommendations are based on observatons from field researchers and may differ based on geography. Always apply product based on your local conditions.

Acelepryn and Ference are Not for Sale, Sale Into, Distribution and/or Use in Nassau, Suffolk, Kings and Queens Counties of New York State.

© Syngenta. Always read and follow label instructions. Some products may not be registered for sale or use in all states or counties. Please check with your state or local Extension Service to ensure registration status. Ference™ is a Restricted Use Pesticide in the State of New York. Scimitar GC is a Restricted Use Pesticide. Acelepryn®, Ference™, Provaunt® and Scimitar® are trademarks of a Syngenta Group Company.

(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.)