Green Horizons

EAB

The Illinois Department of Agriculture confirmed the presence of the emerald ash borer (EAB) just outside of the village of Salem. Salem, IL is about 70 miles straight east of St. Louis and much farther south than previously detected. For more information on EAB, go to www.eab.missouri.edu.

TCD

IThousand cankers disease (TCD) was recently detected on black walnuts in Bucks County, Pennsylvania, north of Philadelphia. The person who reported the suspect trees is an arborist and also a woodworker. He recognized that the trees had potential TCD symptoms. And he also reported that he had received walnut from California a few years ago for his woodworking! The Pennsylvania Department of Agriculture has enacted a quarantine and a delimit survey has begun. This means TCD has now been confirmed in three eastern states within the native range of black walnut (TN, VA and PA) as well as nine western states.

Visual surveys for TCD at high risk sites across Missouri are nearing completion. The Missouri Department of Agriculture is surveying sawmill sites and urban areas and the Missouri Department of Conservation is surveying campgrounds, high-risk natural forested areas and plantations. Both agencies are also following up on reports of declining walnut from the public. Branches are being examined from any suspect trees. So far, TCD has not been detected in Missouri.