Old oak trees and semi-natural grasslands are very important for a large number of species that risk disappearing as habitats decline. In a new study, researchers at Linköping University, Sweden, present their findings on the habitat amount needed. The results can help nature conservation agencies set scientifically based goals and take more precise action to ensure long term survival of threatened species.

Agricultural scientists are rethinking their battle plans against plant parasites that cause billions of dollars in annual yield losses for American farmers. 

Chemical nematicides, soil treatments and biological controls have had mixed success against the soybean cyst nematode, and many potential solutions carry environmental or economic limitations.

Host resistance — breeding soybean varieties that can withstand infection — has been the most effective and environmentally friendly management tool, but its usefulness is declining. Asia Kud, an assistant professor of nematology in the department of entomology and plant pathology for the Arkansas Agricultural Experiment Station, the research arm of the University of Arkansas Division of Agriculture, Kud was awarded a $298,913 grant from the U.S. Department of Agriculture’s National Institute of Food and Agriculture to continue researching a strategy to stop these pest nematodes from feeding and reproducing by interfering feeding sites they create with proteins called effectors.