![](https://extension.udel.edu/ornamentals/files/2018/09/IMG_2838-300x225.jpg)
White faced hornet’s nest in hedge. Photo credit: J. McWilliams.
![](https://extension.udel.edu/ornamentals/files/2018/09/Xcrassiusculus-Lacy-l-hyche-002-300x204.jpg)
X. crassiusculus. Photo credit: L.L.
Hyche, Auburn University, Bugwood.org
![](https://extension.udel.edu/ornamentals/files/2018/09/Bark-beetle-3-002-300x199.jpg)
Bark beetle frass emerging from trunk. Photo credit: B. Kunkel
![](https://extension.udel.edu/ornamentals/files/2018/09/xgerm-daniel-adam-300x192.jpg)
X. germanus. Photo credit: D. Adam,
Office National des Forests, bugwood.org
![](https://extension.udel.edu/ornamentals/files/2018/09/SLF-adult-225x300.jpg)
Spotted Lantern Fly adult. Photo credit: B. Kunkel
![](https://extension.udel.edu/ornamentals/files/2018/09/Basil-Downy-Mildew-300x214.jpg)
Basil downy mildew on leaf. Photo credit: N. Gregory
![](https://extension.udel.edu/ornamentals/files/2018/09/Summer-Patch-IPM-Images-Mary-Ann-Hansen-VaTech-300x198.jpg)
Summer patch. Photo credit: M. Hansen, VA Tech