Launch of 2013 Asthma Friendly Schools Champion Awards

Through support from Genentech and the Environmental Protection Agency, the American Lung Association is excited to launch the 2013 Asthma-Friendly Schools Initiative (AFSI) Champion Awards.  The AFSI Champion Awards recognize schools that have taken positive strides to create a healthier learning environment using the strategies outlined in the Asthma-Friendly Schools Initiative. Silver and Gold level winners are schools that have gone above and beyond to protect the health of their students, faculty and staff.

Continue reading

Weeds becoming resistant to soil-applied herbicides

From Southeast Farm Press

The continual evolution of herbicide-resistant weeds is one of the most daunting problems faced by weed management practitioners.

According to Aaron Hager, associate professor of weed science at the University of Illinois, biotypes of 12 weed species in Illinois are known to be resistant to one or more herbicide action mechanisms.

Continue reading

UK research shows biological control success against cowpea aphids may depend on its bacteria

The cowpea aphid attacks more than 200 plants and 50 crops worldwide but prefers legumes, particularly alfalfa.  It is a major pest in the Tropics, but since the 1990s, cowpea aphid populations caused enough damage to alfalfa in the United States to warrant insecticidal sprays.

A naturally occurring wasp, Lysiphlebus testaceipes, helps keep aphid populations under control, but is not effective against the cowpea aphid in alfalfa. A University of Kentucky College of Agriculture researcher suspects that this natural biological control agent may have failed with the cowpea aphid because of the type of bacteria the aphid possesses.

Continue reading