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Unusually cool early‑spring weather in Chicago has slowed heat accumulation, delaying both plant development and ABW activity.
Substantial ABW damage was observed across numerous northern suburb golf courses from mid-July to late July.
Peak emergence of the next generation of ABW adults is anticipated within the next 1 – 2 weeks.
Pupation is likely underway or imminent, and emergence of first-generation ABW adults can be expected in the next 2 – 3 weeks, along with the potential...
The detection of first instar larvae signals the onset of Stage 3 in ABW development. Early detection is critical for the timely management and prevention of turf injury.
A substantial increase in adult ABW activity has been observed in early May alongside phenological markers of early spring development.
Two courses in the northern Chicago suburbs were the first to report ABW presence in Chicago in 2023, setting the stage for ongoing tracking this year.
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