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

In central and northern New Jersey, scouting for larvae of the first annual bluegrass weevil summer generation should have already started and any necessary larvicide applications are impending. ABW populations currently consist of all stages from spring generation adults through large larvae of the first summer generation.

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July 11 update ABW Activity in Virginia

As of the first week of July, annual bluegrass weevil populations were predominately in the large larvae, pupae, and new adult stages at two of the three Virginia golf courses sampled.

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Ding! Ding! Round Two

In my visits to golf courses, populations of annual bluegrass weevils are asynchronous and have been since early June. Warmer temperatures speed up insect development and decrease the turf’s tolerance to feeding from insect pests.

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Keep on holding off….for now

Currently, we are in a holding pattern in central Pennsylvania with a larvicide application. We are still seeing the occasional fourth and fifth instars, pupae from the first generation in our untreated fairways at the Country Club of Harrisburg. The most abundant stage we are seeing are newly-formed first generation adults

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June 18 ABW update from Virginia

Adult annual bluegrass weevil activity increased significantly over the past two weeks on greens and in soap flushes at two of the three Virginia golf courses sampled. Dr. Tom Kuhar provides an update.

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1st generation complete?

The first generation is coming to a close in most parts of central and western Pennsylvania and northeast Ohio. Although many courses have reported seeing a significant amount of larvae still present despite much of the populations in these areas advancing into or beyond pupae and teneral adults.

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In central and northern New Jersey ABW Spring generation close to complete

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 are primarily around the pupal stage right now, but an increasing number of new still reddish adults are starting to show up.

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High numbers, damage and now more adults

Steve McDonald shares an update on ABW damage that he's seeing in the Mid-Atlantic region.

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ABW: The Next Generation

The busiest time of the year for ABW has officially started. Sites in both the northern and southern areas if North Carolina have started showing moderate damage in the last few weeks.

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ABW activity in Virginia – June 4, 2019

Dr. Tom Kuhar gives an update on ABW activity heating up in Virginia

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