Canine ‘Maci’, a Belgian malinois, interrogating red grapefruit trees in a commercial orchard in the Rio Grande Valley of Texas, USA. Canine runs along the row of trees and abruptly stops and sits ‘alerts’ when he acquires the scent profile of a CLas-positive tree. Note canine is wearing red rubber shoes to protect it from thorny weeds.
Timothy Gottwald, Gavin Poole, Thomas McCollum, David Hall, John Hartung, Jinhe Bai, Weiqi Luo, Drew Posny, Yong-Ping Duan, Earl Taylor, John da Graça, MaryLou Polek, Frank Louws, and William Schneider
PNAS. 2020. 117:3492-3501 DOI: 10.1073/pnas.1914296117