Basement foundations, driveways, utilities, and streets restrict the root system and available resources. Why Are Urban Trees Stressed? Less Water is Available – In Urban Environments, there are …
Rhizosphaera Needle Cast
Rhizosphaera needle cast is a disease caused by the fungus Rhizosphaera kalkhoffii that commonly affects spruce trees growing outside of their native range. Rhizosphaera starts on the inner and lower …
Oak Wilt
Browning starts at the edges, progresses towards the petiole, and the trees defoliate. What Causes Oak Wilt? Oak wilt is a lethal disease caused by the fungus Ceratocystis fagacearum. The fungus …
Japanese Beetles
What are Japanese Beetles? Native to Japan, the Japanese beetle (Popilia japonica) has spread to many U.S. states including Iowa, Missouri and Minnesota, and continues to spread each year. Grubs …
Drought Stress
Basement foundations, driveways, utilities, and streets restrict the root system and available resources. In the urban environment grass competes with trees for water and minerals. This significantly …
Chlorosis
What is Chlorosis? Chlorosis is a serious condition where a tree’s ability to manufacture chlorophyll has been compromised. Because chlorophyll is the green pigment found in leaves, this condition …
