| GardenTIPS |
|
May 2002, Vol 1 Issue 3 Purdue Extension GardenTIPS E-NewsletterWelcome to the Garden TIPS E-Newsletter. Listed below are tips and links to articles. Follow the links to the GardenTIPS Web site for more information and links at: http://www.extension.purdue.edu/gardentips/ View the online version, at: http://www.extension.purdue.edu/gardentips/newsletter/vol1issue1.html ===================================================== Insects and Diseases Issue=====================================================Cicada Emergence - A Natural WonderWith amazing predictability large masses of periodical cicadas emerge all together for one month every 17 or 13 years, depending on the group. Hoosiers often call these wonders of the insect world 17-year or 13-year locusts. During these spectacular emergence events, millions of unique (ugly) looking cicadas emerge from the ground where they have been feeding for years on tree roots, crawl up the trunks of trees and hatch into the adult stage. Witnessing a hatch of periodical cicadas, or just listening to the noise that accompanies these insects, is an experience not soon to be forgotten. The male cicada makes a very loud, high pitched, song by using a drum-like organ on the sides its body. The emergence of one 13-yr brood is expected beginning in late May or early June in twenty-one Indiana counties as far north as Fountain, Tippecanoe and Fayette counties. In 2004, a 17-year brood is expected throughout the entire state. Full Story, http://www.ppdl.purdue.edu/PPDL/hot02/Whats_Hot6-4-02.html =====================================================
Anthracnose of Shade TreesAnthracnose is the common name for a type of leaf spot and canker disease caused by certain kinds of fungi. Anthracnose diseases affect many trees, but are particularly prevalent on white oak, ash, maple, walnut and sycamore. Each species of tree is infected by a different species of fungus, thus the fungus does not spread from oak to maple or maple to ash or ash to sycamore. A different fungal species is also responsible for dogwood anthracnose. Symptoms are especially severe in years with cool, wet spring weather. The symptoms will vary depending on the type of tree and the stage of plant development at the time of infection: leaf spots or blotches, twig dieback and wilting, and browning or death of emerging leaves are all possible. Premature leaf drop often occurs with anthracnose diseases, however, most of the trees infected with anthracnose usually show good resilience and are not permanently damaged by this early season leaf blight. Full Story, http://www.extension.purdue.edu/extmedia/BP/BP_9_W.pdf =====================================================
Bagworms =====================================================
Four-lined Plant Bug =====================================================
Slugs
and Hostas Peach Leaf Curl ===================================================== Maple Petiole Borer For more insect and disease stories, go to: http://www.extension.purdue.edu/gardentips/insects.html
More Information on: Visit the GardenTIPS Web site
for more information and links: ===================================================== GardenTIPS is a Purdue University Extension gardening Web site. This E-Newsletter is sent out twice a month. Browse our garden tips, information, and links at: http://www.extension.purdue.edu/gardentips/. If you are having trouble receiving this E-Newsletter, please contact the list owner at: extension@purdue.edu If you wish to unsubscribe or switch to the HTML version, go to the Garden TIPS Subscription page at: http://www.extension.purdue.edu/gardentips/subscribe.html. |