Videos

In this video we follow Ed Zaworski as he shows us how to diagnose some tree problems.

Several samples have come into the Plant Disease Clinic lately, showing symptoms and signs typical of Rhizosphaera needle cast. This disease is caused by the fungus Rhizosphaera kalkhoffii and is most common on Blue spruce; however, Black Hills spruce is also susceptible.

Welcome to The Undergrowth. We speak to celebrated scientists and eminent educators about plants and pests. Join us as we embrace knowledge together on this expedition into mysterious realms.

Sebastian speaks with Mr. Randall Cass, an extension bee specialist and staff member at Iowa State University, about the issues that impact honey bees. Want to know about bee keeping and native bees? See the following Extension resources:

Bee Program at Iowa State University

Southern rust of corn The terror stalks through southern fields, It siphons hope and steals yields. The pustules eruptules and polysora soars, It takes to flight on windy nights And floats to Midwest shores. Urediniospores fall from the sky, And hybrid leaves begin to die. Famished kernels yearn for fill, When southern rust closes to kill. The combine cries, the chaff spreader chafes, The auger slows, the bins don’t break. When pustules eruptules and polysora soars, It takes the strength of mighty men and shakes me to the core.