June 23, 2010
Our Next Issue Will Be In Three Weeks
The next issue of the ISU Horticulture and Home Pest Newsletter will be assembled on July 14, 2010.
Control of Birdsfoot Trefoil in the Lawn
Birdsfoot trefoil (Lotus corniculatus) is a conspicuous plant in some lawns in June and July. Grown for pasture and hay, birdsfoot trefoil has escaped to roadsides and waste areas. It is
Evergreens Hit by Mother’s Day Cold Snap
In the last three weeks the ISU Plant and Insect Diagnostic Clinic has received Norway spruce, blue spruce and concolor fir images (Pictures 1 and 2) and plant samples with symptoms of frost injury. Jesse Randall, ISU Extension Forester has reported damage in locations around the state. Susceptible plants include spruce, fir, Douglas fir and occasionally pine.
Lightningbugs Putting on a Display
The flash of a lightningbug on a summers evening still inspires most of us to reach out and try to catch the enchanting light. Lightningbugs can be placed in a container for closer obser
Plant and Insect Diagnostic Clinic Update - June 23, 2010
The following are highlights and updates about samples and questions recently received in the Clinic:
INSECTS
Japanese Beetle Season is Underway
The first reports of the Japanese beetle for the year have been received. And so it starts.
Carpenter Bees Buzz and Bore
Carpenter bee calls and samples continue to arrive, and the reported distribution has spread northward since the last update on this "southern" insect. See the map below.