White Masses On Alder Are Woolly Aphids
A group of woolly alder aphids on an alder branch. / Photo Credit: Linda Williams, Wisconsin DNR By Linda Williams, DNR Forest Health Specialist, Woodruff Linda.Williams@wisconsin.…
A group of woolly alder aphids on an alder branch. / Photo Credit: Linda Williams, Wisconsin DNR By Linda Williams, DNR Forest Health Specialist, Woodruff Linda.Williams@wisconsin.…