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Now Showing: Posts by Dr. Tom Kuhar 72 Posts

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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.

ABW update for late September, 2020 in Virginia – Just a few lingering adult weevilsSeptember 28, 2020

During this last week of September, we are seeing pretty much only a few lingering adults at our three Virginia WeevilTrak locations that will likely...

Adult peaks and more larvae building up in VirginiaAugust 26, 2020

ABW update for August 25, 2020 in Virginia – Adult peaks and more larvae are building up

ABW update for July 31, 2020 in Virginia – It’s all about the new adultsAugust 3, 2020

As of the last week of July, we are seeing a mix of ABW life stages from small larvae to adults at our three Virginia WeevilTrak courses.

ABW update for June 22, 2020 in Virginia – It’s all about the new adultsJune 22, 2020

ABW update for June 22, 2020 in Virginia: It’s all about the new adults

Annual bluegrass weevil update for May 18, 2020 in Virginia – Peak larval time happening throughout VirginiaMay 19, 2020

The graphs below show the annual bluegrass weevil (ABW) adult (top graphs) and larval densities (bottom graphs) per square foot from the Federal Club...

Annual bluegrass weevil update for May 3, 2020 in Virginia – Small larvae are abundant in Roanoke and Blacksburg samples this weekMay 4, 2020

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.

Adult bluegrass weevil (ABW) update for April 19, 2020 in Virginia – Adult peaks and first larvae of the year foundApril 20, 2020

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