A study looking at floral density and pollinators finds that some types of pollinating insects prefer dense flower patches more than others, but that preference can also vary by flower species, too. The complicated findings offer clues to how multiple pollinator species co-exist and compete for floral resources.
First arriving in California in 2014, the mosquito species Aedes notoscriptus, native to Australia and the southwest Pacific, has since established and spread to 44 cities in three counties. A new study examines the public health implications of this species and documents its likely arrival and expansion routes.
As fall armyworm continues to threaten food security in Africa, the use of Bt maize offers significant potential to manage the pest. But it will be critical to manage resistance via multi-toxin crop varieties and appropriate use of refuge planting—all in forms accessible to the smallholder farmers that grow nearly all of Africa's maize.
The Asian longhorned tick (Haemaphysalis longicornis), an invasive species in the U.S., is a threat to cattle and other livestock. A new study finds several pesticides used to manage other tick species are equally effective against the new arrival.