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Now Showing: Posts by Dr. Albrecht Koppenhöfer 67 Posts

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Current “heat wave” in New Jersey should bring peak densities of adult ABW: adulticide applications imminentApril 13, 2022

With the current weather forecast, I expect peak adult densities to occur around Friday, April 15. But after that it will get quite cool for a while so...

ABW adults will soon start migrating: predicting activity and estimating adult populationsMarch 14, 2022

The growing degree day monitors have been placed at Pine Brook Golf Course (Manalapan, New Jersey) and Preakness Hills Country Club (Wayne, New Jersey...

ABW season finale and another FAW heads-upSeptember 23, 2021

Things should be really slowing down with annual bluegrass weevils now. But it looks like there is still some scattered ABW activity in New Jersey right now.

ABW still causing some trouble in here and there central and northern New JerseyAugust 31, 2021

Annual bluegrass weevils (ABW) are still rearing their heads here and there in New Jersey. The spottiness of ABW is pretty normal in summer, especially...

ABW stages all over the place in central and northern New JerseyJuly 28, 2021

With the warm weather we have had in the region, annual bluegrass weevil (ABW) stages and generations have continued to advance quickly.

In central and northern New Jersey ABW spring generation close to complete for 2021June 29, 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...

Time for larvicides vs mid-size larvae in central and northern New JerseyMay 19, 2021

In central and northern New Jersey, the annual bluegrass weevil (ABW) populations are moving along with larvae now present up to the 4th stage, exceptionally...

The time for ABW adulticide applications is around the corner in central and northern New JerseyApril 16, 2021

After a rather warm spring thus far, annual bluegrass weevil activity seems to have slowed down a bit with somewhat cooler weather more recently. But...

Getting ready to track ABW: methods for predicting activity and estimating adult populationsMarch 15, 2021

February in New Jersey was certainly snowy and seemed cold, but temperature-wise it was actually spot-on average. Since we have not had a lot of extreme...

ABW larvae abound: Is this the 2nd summer generation?August 12, 2020

Annual bluegrass weevil (ABW) larvae seem to be popping up in many places across New Jersey. It seems rather early for larvae of the 3rd ABW generation...

ABW larvae of 1st summer generation: Time to scout for and control if necessaryJuly 20, 2020

Annual bluegrass weevil populations in central and northern New Jersey currently consist of all stages from spring generation adults through large larvae...

Time to control all larval stages: ABW stages likely to be all over the placeMay 28, 2020

Yes, Steve McDonald is right: it is a mess! The crazy weather patterns must have the annual bluegrass weevils (ABWs) about as confused as you.

Timing adulticides was a shot in the dark: better to rely on larvicides this springMay 5, 2020

At Pine Brook Golf Course, annual bluegrass weevil adult numbers determined by soaping have been low all spring (no higher than 0.67 per 1 ft.2 on the fairway).

Best soaping practices and discrepancies between phenological indicators and growing degree daysApril 9, 2020

Research clearly shows that soaping is more effective, less variable and less affected by weather than vacuuming.

How to live with restrictions during COVID-19 pandemicApril 9, 2020

With no golfers on courses and staff limitations for course maintenance crews, it is a good time to think about streamlining operations, especially if...

2020 ABW season outlook and summary of GDD and plant and ABW phenologyMarch 4, 2020

Once again, I’ll be keeping track of annual bluegrass weevil at Pine Brook Golf Course in Manalapan, New Jersey and Preakness Hills Country Club in Wayne...

2019 ABW season summary and 2020 outlookAugust 26, 2019

The recent little heat wave combined with relatively dry conditions may have brought out some trouble with annual bluegrass weevil larvae in some areas...

If scouting reveals high ABW larval densities, time for larvicides to control the first summer generation of ABWJuly 15, 2019

In central and northern New Jersey, scouting for larvae of the first annual bluegrass weevil summer generation should have already started and any necessary...

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