August 24, 2011
New Turfgrass Herbicide Recalled; Avoid Composting Clippings
Imprelis herbicide (active ingredient aminocyclopyrachlor) is being recalled by the E.I.
When Is It Too Late To Treat For Bagworms?
For many areas in southern Iowa ("bagworm territory"), it is now too late to treat for bagworms. If the caterpillars are no longer visible and feeding, if the bags are no longer movi
Mosquito Activity Report, August 19, 2011
The following is the summary of mosquito activity in Iowa from the ISU Medical Entomology Laboratory; August 19, 2011.
Plant and Insect Diagnostic Clinic Update - August 24, 2011
The following are highlights and updates about samples and questions recently received in the Plant & Insect Diagnostic Clinic:
Diseases
We continue to see some blue spruces with Rhizosphaera needle cast and root damage symptoms caused by excessive soil moisture in previous years. B.O.B. is also showing up on bur oaks, for more information about this relatively new disease please see this previous article.
Wilting Cucurbits: How to Identify Problems in the Field
Growing cucurbits can be really frustrating for homeowners. Often our melon, cucumber, and squash plants are doing great but then they wilt overnight!
Transplanting and Dividing Peonies
The garden peony is a popular, long-lived perennial that provides abundant flowers in spring and attractive foliage throughout the growing season.
Planting Trees in Late Summer/Early Fall
While spring is the traditional planting season in Iowa, late summer/early fall is an excellent time to plant balled and burlapped and container-grown trees. Evergreens, such as pine and spruc