Thursday, 23 May, 2013

Mark Renz, Extension weed scientist at UW-Madison’s Department of Agronomy, says that varying environmental conditions ensure that virtually all plants, including dandelions, have some good years and some poor ones. However, dandelions may be a special case, he says, since they seem perfectly suited to conditions in this area. “I’ve only been in Wisconsin for [...]

In a wilderness, roads can interrupt migration corridors; kill wildlife through vehicle impacts, block movement of surface water; compact soil, harming burrowing animals and changing groundwater flow; cause air pollution and traffic noise; and allow invasive species to enter.

Spotted knapweed produces a chemical that fights other weeds. Read about a natural herbicide.

Arrival of snakehead fish raises question of invasive species, weeds and exotic species. Meet 8 of the worst.