December 13, 1996
Having just returned from a Thanksgiving holiday where ice has been a major problem already this winter, a discussion on deicing materials seems appropriate. Ice on sidewalks and roadways makes for a hazardous combination to people and property. Removal of compacted snow and ice with shovels or snow blowers isn't always easy or effective. The use of a chemical deicer may be needed to facilitate removal.
A large number of Iowa State University Extension services to home gardeners and professionals that work with home gardeners are now consolidated into the Home Horticulture Resource Center. Available services include: the Hortline, newsletters, newspaper columns, publications, a video lending library, and information via the Internet. The following is a list of Internet services available from the Home Horticulture Resource Center.
Basal rot of prickly pear and other cactus species usually develops near the soil line. Symptoms may include a discoloration of tissue, (yellowing or browning), a water-soaked rot, and eventual collapse of the entire plant.
You've probably heard the story about cockroaches surviving a nuclear war: we die but they live! This is supposed to make you feel better when you have trouble getting rid of these critters.
So, the real truth: radiologists have found that humans can safely withstand a one-time exposure of 5 rems (A "rem" is the dosage of radiation that will cause a specific, measured amount of injury to human tissue). A lethal dose is 800 rems or more (people are exposed to about 16 rems during their lifetime).