WeevilTrak Blog | GreenCast | Syngenta
Welcome to the WeevilTrak℠ blog, offering you updates about annual bluegrass weevil (ABW) from industry leading researchers. This blog will provide you with timely ABW activity across the north east as well as advice on scouting and controlling them using the Optimum Control Strategy.

Latest Posts: Steve McDonald

Timing Peak ABW Adult Movement isn't as Easy as Watching the Forsythia

This week, I traveled more than 1,200 miles, visiting golf courses and scouting for annual bluegrass weevil (ABW) adults in Richmond, VA, northern Virginia, central Maryland, southeastern Pennsylvania, all of New Jersey and even a trip out to the eastern end of Long Island. I paid attention to the road, but also to the Forsythia throughout the trip.

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Fool me once…Never mind it’s Weather in the Mid-Atlantic.

In the Mid-Atlantic, the weather during February 2017 was mild and drier than normal and golfers were chumping at the first tee at many golf courses on a number of days. In talking with many superintendents the past week, many golf courses had a high number of winter rounds in the month of February.

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Populations Winding Down and Surprise, Surprise: Damage to Bentgrass and Greens

The recent weather pattern has been brutal in many locations of the Mid-Atlantic. We experienced hot days and warm nights with very high evapotranspiration rates throughout the month of July. Then, the last week of July brought heavy rainfall, humidity and perfect weather patterns for brown patch and Pythium diseases.

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ABW are all over the place

The 2016 annual bluegrass weevil (ABW) season has been all over the place since it began.

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Heavy rain slows ABW damage – for now

My Memorial Day Picnic was cancelled because of heavy rainfall along the beaches of Delaware. So, just like last month, I'm writing this blog during a rainfall event when we really don't need this much rain.

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Mid-Atlantic Observations from April and early May.

It's May 6, 2016, it is pouring down rain and the soil is already saturated. I visited close to 20 golf courses this week and rain is one thing that no one in our region needs more of right now! The Philadelphia area is at about 300 growing degree days base 50°F starting March 1, 2016.

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Start Scouting, Not Treating

It may have felt like spring, or even summer this week in most locations of the Mid-Atlantic and Northeast regions, however the calendar tells us that spring will not be here until March 20. This week I traveled throughout Virginia, Maryland, New Jersey and Pennsylvania visiting courses and many times felt "too warm for March". The week of March 6 through 13 was marked by warm days and moderate nighttime temperatures. We use growing degree days (GDD) as one of many tools to monitor annual bluegrass weevil (ABW) activity.

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Creeping Bentgrass Damage by the Annual Bluegrass Weevil in Mid-Summer

Over the past three weeks, in the Mid-Atlantic region, we have experienced a significant amount of evapotranspiration and very little rainfall. Most golf courses are relying heavily on their irrigation systems to replace the water loss. Besides dry conditions, I have observed more and more damage from the annual bluegrass weevil (ABW) to 100 percent creeping bentgrass.

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Overlapping of Life Cycles with Heat and Moisture Stress is Upon Us

June brought a lot of rainfall for the Mid-Atlantic region. There were a number of golf courses in the Washington, D.C., Baltimore and Philadelphia corridor that recorded more than 12 inches of rainfall from June 2 through July 15, with some as high as 18 inches.

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First Generation of ABW Coming to an End and Research Results Are In

Currently, throughout Maryland, Pennsylvania and South New Jersey we are observing an increase in mature and callow adult activity on the turf surface. Through soap flushing, I saw pairs of mating adults last week in a number of locations.

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