Dr. David Nestel was born and raised in Mexico. He studied his Bachelor degree in Biology and Master Degree in Zoology at the Hebrew University of Jerusalem, Israel, and his Ph.D. in Entomology at the University of California Berkeley, USA. His early professional activity as a scientist took place in the National Institute of Ecology in Xalapa, Mexico, working on the agroecology of coffee producing systems and on insect ecology. He then moved to Israel, were he has been working as a Scientist since 1991 in the Agricultural Research Organization of the Ministry of Agriculture.