Distribution and Extent of Damage by Scolytus spp. to Stone and Pome Fruit Orchards in Israel
1997
Mendel, Zvi | Ben-Yehuda, Shaul | Marcus, Ruth | Nestel, David
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.
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