Videos
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Rhizosphaera Needle Cast 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. |
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Integrated Pest Management - Iowa State University |
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Crop Scouting Competition 2024 What a fun day filled with learning, laughs, and PRIZES! Youth have the opportunity to work with ISU faculty, staff, and industry professionals during this hands-on competition. The 2025 Iowa Youth Crop Scouting Competition is July 24th at Wyffels Hybrids in Ames, IA. Registration will open in April 2025. For more information on the competition, see the Crop Scouting Competition webpage. |
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DISEASE TRIANGLE: 3 Ways Plants Get Sick In this video Extension Plant Pathologist Daren Mueller walks us through some basic concepts of plant pathology. One of the most important things that pathologists focus on is the disease triangle and in this video Dr. Mueller explains what that disease triangle is and why it's important. |
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Unwanted Guests: How Mealybugs Cause Yellowing, Stunting, and Death in Your Beloved Houseplants! For more information, see this encyclopedia article on mealybugs from Iowa State University Extension and Outreach Yard and Garden: Mealybugs |
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Crop Scouting Competition 2023 | Highlights The Iowa State University Integrated Pest Management (IPM) Program and Iowa 4-H are pleased to announce the 2023 Iowa Youth Crop Scouting Competition. Middle school and high school students (those completing grades 7-12) from Iowa are invited to compete and showcase crop scouting abilities in corn and soybean. At this anual event, teams work with with Iowa State University staff and industry professionals to identify corn and soybean problems in the field. Top teams win prizes and advance to the regional competition. |
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"Who Milks the Bees?" |The Undergrowth 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: |
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Iowa Plant the Moon Challenge
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Terror Stalks Through the Cornfield (Southern Rust) | Phytopoetry 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. |
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Corn Rootworm - Beetles & Larvae, Damage, Thresholds, Management, Sticky Traps, Scouting, & Impact |
