—Dr. Robert Bauernfeind
While I had not intended to follow the progress of BHAS as I have done in previous years, I can’t seem to drive past the “busy beavers” without stopping to have a look. And so, within the past week, pinhole feeding has progressed to the tattered-appearance phase. Like ETC and EPS, BHAS activities are about a week ahead of where they were in 2014.
—by Dr. Bob Bauernfeind
Based on reports posted by Department of Entomology Diagnostician regarding her having received specimens of adult brownheaded ash sawfly, I went out to a site where ash trees have been heavily infested the past couple of years. And, they are back. Though from a distance all appears normal, upon closer look, “pinhole feeding” is underway. By enlarging the image, the still-wee-larvae responsible for the “nibble holes” can be easily seen.
To treat or no-to-treat becomes an individual’s decision. Should trees become defoliated, they will rapidly recover, producing a flush of new foliage.