Videos

Title
Complete Nematode (Corn/Turf) Sample Submission

The PIDC provides identification and counts of the nematodes that feed on grasses (corn and turfgrass).  We provide information about the nematode species, thresholds, and management information.  We can also identify nematodes on other plants, but please contact us for specific sampling instructions.  If you are looking for information on submitting SCN (soybean cyst nematodes) samples please click here.   

Digital Photography (Plant problems)

Digital images of plant problems symptoms and mushrooms (causing rots on woody plants) can be very useful for diagnosis and identification. Digital pictures are free and easy to submit. We do not provide diagnosis or identification on an image only because it is not feasible in most cases to make even a good guess, but we will accept images in order to assist in determining what type of sample is most appropriate. Here are tips to help send better pictures.

About us

Hours

We are open weekdays 8:00am - 4:00pm, please e-mail pidc@iastate.edu or call 515-294-0581 if dropping off plant samples after 3 pm to ensure someone is there to take your sample.  Please mail plant samples early in the week to ensure they arrive by Friday morning.  

Closed on weekends and University holidays.  

Directions: see our page Driving Directions to the Plant and Insect Diagnostic Clinic or find us in google maps

BugGuide Needs Your Help!

Please consider supporting BugGuide.net. Your donations will help us fund a staff member that can work on development and a half-time staff member working on collaboration with other projects and agencies like iNaturalist and LepSnap and the Nature Conservancy and the Xerces Society and USGS and others.

It Was a Very Good Year for Painted Lady Butterflies


Painted lady butterflies at Reiman Gardens

White mold, with a focus on vegetables

Need to know: 

  • Fungus has a wide range of hosts including tomato, pepper, beans, crucifers/cole crops. 
  • White, cottony mycelial growth can be observed on infected plants. 
  • Optimal conditions are temperatures between 50-70 degrees F and moisture. 
  • Manage by scouting for disease, sanitation, and practicing good plant health maintenance.  

Overview

Gardening in the Zone: Lawn Care Calendar

This segment from the Gardening in the Zone series talks about good lawn care, with Dave Minner, from Iowa State University.

Gardening in the Zone: Spring-Flowering Bulbs

October is the perfect month for planting spring-flowering bulbs. Cynthia Haynes, Iowa State University Extension and Outreach consumer horticulturist, offers tips and advice on selecting and planting bulbs.

Gardening in the Zone: Rhubarb
Gardening in the Zone: Daffodils

Growing daffodils is the focus of this Gardening in the Zone segment, with Cindy Haynes, ISU Extension.

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