Main Line Plant Health Problems
Our area has a multitude of known plant health care issues that we see regularly, such as tree diseases like aster yellows or phytophthora root rot, insect pest issues like scale insects or emerald ash borer. Other Main Line plant health problems are new to our residents, and we like to help homeowners stay informed about risks to their landscapes. Below we discuss some of these issues. June 2025 Plant Health Care Update Two major plant health problems have been widespread this season. Pachysandra Collapse Late-season 2024 (September-November) was exceptionally challenging for landscape plants, with 2+ months of no rainfall leading into dormancy. Plant stress prior to dormancy can be very damaging, but we did not expect that there would also be a late-season period of disease infection, taking advantage of plants weakened by drought. Volutella blight ( Volutella pachysandrae ) is generally considered as a weak pathogen of pachysandra and boxwoods, leading to mild leaf s...
