University of Maryland Extension

Home and Garden

My tree looks like it has a wet bleeding wound on the trunk. What is this?

Your tree may have a bacterial infection called “wetwood” or “slime flux”. Wetwood is most commonly found on mulberry, poplar or elm, but can infect many other hardwood trees, such as maple, oak or black gum. Symptoms are a vertical crack on the bark with bleeding, discoloration, and a foul or...

Sphecid Wasps

Sphecid Wasp
Sphecid wasps are a diverse group of solitary wasps that show up in mid to late summer. You will see them around their nests, hunting bugs and taking nectar from flowers. They have been seen in Carroll County on the flowers of Culver’s root and sweet pepperbush and frequently pollinate other later...
A new invasive plant has arrived in Carroll County, wavyleaf basketgrass (Oplismenus hirtellus ssp. undulatifolius). This forest grass from southeast Asia was first sited in Patapsco Valley State...
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