May 26, 2010
Shade Tree Aphids and Honeydew
Often we have no idea what is happening up in the canopy of our trees. Insects are born, live and die with us being none the wiser. However, one group of insects often give themselves away in a rather annoying way – by defecating, a lot. Aphids and their plant feeding relatives are so well known for their excrement that we have even come up with a more pleasant term for it – honeydew. Honeydew is produced by aphids and soft scales and is basically the plant sugars that end up passing through the digestive system of sap feeding insects.
Plant and Insect Diagnostic Clinic Update - May 26, 2010
The following are highlights and updates about samples and questions recently received in the Clinic:
Insects
Care of Newly-Planted Trees
The first 2 or 3 years are the most important period in the establishment of newly planted trees. Good cultural practices during this period help reduce transplant stress and create a favorable environment for tree growth.
Anthracnose Common on Shade Trees This Spring
Many homeowners are growing concerned about the health of their shade trees due to unsightly leaf browning and leaf drop.
Early Cicadas Make Appearance in SE Iowa
Just when you think your life has become predictable and routine, Nature gives you something new and exciting. Life is grand.