Technical reports

Entomosporium leaf spot, caused by the fungus Diplocarpon mespili, is a common disease of landscape ornament…

Euonymus scale (Unaspis euonymi Comstock) is an armored scale. Armored scales s…

The European hornet (Vespa crabro) was introduced to North America in the 1840s. Since arriving, this insect…

Evergreen pear, formerly Pyrus kawakamii (P. calleryana var. calleryana), is a p…

Phytophthora ramorum causes a canker disease known as Sudden Oak Death (SOD) on several species of oak and tanoak. On…

Observations of declining oak species across large geographic regions are increasing. The convergence of multiple str…

The fall webworm, Hyphantria cunea (Drury), is a native pest of shade and ornamental trees throughout much of North A…

Ficus whitefly (Singhiella simplex), also called fig whitefly, is an invasive pest of most Ficus sp…

Fire blight is a very destructive disease on many species in the rose family, including pear, crabapple, cotoneaster,…