Insect Science and its Application (1997) 17, 175-181
Zvi Mendel, Shaul Ben-Yehuda, Ruth Marcus and David Nestel (1997)
Distribution and extent of damage by Scolytus spp. to stone and pome fruit orchards in Israel
Insect Science and its Application 17 (2), 175-181
Abstract: During the last decade damage to stone- and pome-fruit orchards in Israel caused by bark beetles has increased. We present data on injury by Scolytus amygdali Geur. and S. rugulosus Muller to nine rosaceous fruit trees of Prunus spp., Malus silvestris, Pyrus malus, Cydonia oblonga and Eriobotrya japonica in 6 major regions in Israel. Approximately 64 and 18% of the sampled areas planted with stone- and pome-fruits, respectively, were damaged by bark beetles. The heaviest damage occurred on apricot, almond, peach, plum and cherry. Most of the area planted with stone fruits, and large areas planted with apple and pear, were damaged by bark beetles. The most widespread beetle damage occurred in the central mountain range and the southern coastal region, with approximately 96 and 92% of the sampled area damaged, respectively and the least occurred in the northern mountain range. Stone fruits are more susceptible to damage by bark beetles than apple and pear, while quince and loquat are virtually resistant. The level of damage appears to be influenced by grove management, host plant resistance to Capnodis spp. (Coleoptera: Buprestidae), climatic conditions and conditions in plots neighbouring the orchard.
Durant la derniere decennie les degats causes par les scolytes aux vergers de drupes et de pommes ont augmente en Israel. Nous presentons les resultats des degats par Scolytus amygdali Geur et S. rugolosus Muller a neuf arbres fruitiers rosaces, Prunus spp., Malus silvestris, Pylus malus, Cydonia oblonga et Eriobotryajaponica dans six regions importantes d'Israel. Approximativement 64 et 18% des regions echantillonnees plantees respectivement d'arbre a drupes et de pomier etaient endommages par les scolytes. Les degats les plus lourds etaient sur les arbres a abricots, amandes, peches, prunes et cerises. La majeur partie de la region plantee d'arbre a drupes, et de larges etendues plantees de pommier et de poirier etaient endommages par les scolytes. Le degats par coleopteres les plus repandus avaient lieu sur l'etendue montagneuse et la region de la cote sud, avec des degats sur approximativement 96 et 92 % respectivement de l' aire echantillonnee tandis que la region montagneuse du nord etait moins affectee. Les drupes sont plus susceptibles aux degats par scolytes que les potatoes et les poires alors que les coings et les nefles sont en fait resistants. Le niveau des degats semble etre influence par la gestion de la plantation, la resistance de la plante hote a Capnodis spp. (Coleoptera: Buprestidae), les conditions climatiques et les conditions dans les parcelles entourant le verger.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Zvi Mendel, David Nestel
Research topic(s) for pests/diseases/weeds:
damage/losses/economics
surveys/sampling/distribution
