Pittsburgh Post Gazette Larger trees -- those more than 20 inches dbh -- should be left to professional arborists because they can use products such as emamectin benzoa...
Michigan State University Extension Trees with adequate sunlight and soil moisture grew rapidly and received adequate protection from basal drenches of imidacloprid made every year or every other year, while shaded and drought-stressed trees grew slowly and were much more susceptible to ... and more »
