News tagged with natural enemy

Researchers revise Darwin's thinking on invasive species

For more than a century and a half, researchers interested in invasive species have looked to Charles Darwin and what has come to be called his "naturalization conundrum." If an invader is closely related to species in a ...

Dec 02, 2013
3.4 / 5 (11) 0 | with audio podcast

Speckled beetle key to saving crops in Ethiopia

(Phys.org) —An invasive weed poses a serious and frightening threat to farming families in Ethiopia, but scientists from a Virginia Tech-led program have unleashed a new weapon in the fight against hunger: ...

Aug 22, 2014
4.5 / 5 (2) 0

Predators delay pest resistance to Bt crops

Crops genetically modified with the bacterium Bt (Bacillus thuringiensis) produce proteins that kill pest insects. Steady exposure has prompted concern that pests will develop resistance to these proteins, making Bt plants ...

Mar 04, 2014
5 / 5 (1) 0