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Now Showing: Posts by Dr. Albrecht Koppenhöfer 67 Posts

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In central and northern New Jersey ABW Spring generation close to completeJune 17, 2019

In central and northern New Jersey, it is about time to start scouting for the adults of the annual bluegrass weevil (ABW) spring generation. Populations...

Rhododendron approaching full bloom: scout for larvae and, if necessary, apply larvicidesMay 16, 2019

In central and northern New Jersey, the annual bluegrass weevil populations are moving along. Larvae are now present up to the fourth stage in central...

ABW adults building up in New Jersey. Prepare for adulticide applications if necessary.April 18, 2019

The weevils are marching in, but at least at my two sites not in great numbers so far. I’m not sure if my populations are simply that low this year (I...

2019 ABW season in New JerseyMarch 19, 2019

Once again, I’ll be keeping track of annual bluegrass weevils (ABWs) at Pine Brook golf course in Manalapan, New Jersey and Preakness Hills country club...

2018 ABW season summary and 2019 outlookAugust 29, 2018

The ongoing short heat wave, which is supposed to last through Thursday, August 30, combined with the fairly dry conditions in the last 10 days might...

First summer ABW generation reaching adulthood in central and northern NJJuly 30, 2018

In central and northern New Jersey, the first summer generation of annual bluegrass weevil (ABW) populations have already started to show up as adults...

Spring ABW generation approaching adulthood in New JerseyJune 22, 2018

In central and northern New Jersey, the annual bluegrass weevil (ABW) populations are slowly approaching the adult stage. On Tuesday, June 19 at Preakness...

Rhododendron are starting to open blooms; scout for larvae and, if necessary, apply larvicides vs. mid-sizeMay 16, 2018

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

On to early larvicide application where necessaryMay 10, 2018

Most sites in central and northern New Jersey should now be at peak adult densities on the short-mown turf, if not already slightly past peak. The heat...

The weevils are marching in, in spurtsApril 19, 2018

In my last blog in March, I speculated about the effect of the two-week spell of very cold weather around the New Year on annual bluegrass weevil (ABW...

When will the weevil come marching? Will they be 1 by 1 or 10 by 10?March 15, 2018

Another WeevilTrak season is ahead of us. I’ll be again keeping track of annual bluegrass weevil (ABW) at Pine Brook Golf Course in Manalapan, New Jersey...

2017 ABW season summary and 2018 outlookAugust 30, 2017

For most golf courses, the annual bluegrass weevil (ABW) season should be pretty much over. In fact, at the two courses I have monitored for WeevilTrak...

Watch out for summer generation ABW larvae in central and northern NJAugust 2, 2017

In central and northern NJ, larvae of the 1st summer generation are developing and could start causing problems if they reach high enough densities. ...

ABW spring generation close to complete in central and northern NJJune 20, 2017

In central New Jersey, annual bluegrass weevil (ABW) populations should be primarily in the pupa stage and/or the teneral (new, still reddish) adult stage...

Start getting ready for curative ABW larvicides in central NJ, not quite there, yet, in northern NJMay 12, 2017

This week I have two very different scenarios to offer, and I am scratching my head over it. In central New Jersey at Pine Brook Golf Course, adult densities...

Time for early ABW larvicides in central NJ, getting there in northern NJMay 4, 2017

While adult ABW densities stay high, small larvae have started to show up on fairways in central and northern NJ. In fact, at both Pine Brook Golf Course...

Get ready for adult ABW treatments in central NJ, a little later in northern NJApril 13, 2017

In central New Jersey the adult weevil may be approaching peak densities. At Pine Brook Golf Course (Manalapan, NJ) on Wednesday, April 12, I vacuumed...

“The Incredible Hulk”: ABW monitoring and the weatherMarch 27, 2017

Ever ridden "The Incredible Hulk" at Universal Studios in Orlando? I just did. It's not particularly high and starts out with a 45° climb that seems...

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