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‫הגנת הצומח‬

                                               3. Ploetz et al. (2013): Destructive tree diseases associated with
                                                   ambrosia and bark beetles: Black swan events in tree pathol-
                                                   ogy? Plant Dis 95: 856-872.

                                               4. Stouthamer et al. (2016): Phylogeography of the Euwallacea
                                                   fornicatus (Coleoptera: Curculionidae: Scolytinae) species
                                                   complex (in preparation).

                                               5. O’Donnell et al. (2015): Discordant phylogenies suggest re-
                                                   peated host shifts in the Fusarium – Euwallacea ambrosia
                                                   beetle mutualism. Fungal Genet Biol
                                                  http://dx.doi.org/10.1016/j.fgb.2014.10.014

                                               6. Lynch et al. (2015): Identification, pathogenicity and abundance
                                                   of Acremonium pembeum sp. nov. and Graphium euwallaceae
                                                   sp. nov.- two newly discovered mycangial associates of the
                                                   polyphagous shot hole borer (Euwallacea sp.) in California. My-
                                                   cologia 2016 Jan 6. pii: 15-063 (Epub).

                                               7.	Freeman et al. (2015): Symbiotic association of three fun-
                                                   gal species throughout the life cycle of the ambrosia beetle
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                                               8.	 Eskalen et al. (2013): Host range of Fusarium dieback and its
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                                   Background and current situation
                                   regarding the Ambrosia beetle and its fungal
                                   symbionts in avocado plantations in Israel

                                               Z. Mendel, A. Protasov, O. Margalit, E. Palevsky / Dept. of En-
                                               tomology, ARO, The Volcani Center, Bet Dagan 50250, and Neve
                                               Yaar, 30095 Israel.
                                               M. Dori-Bachash, M. Maymon, M. Elazar, S. Freeman /
                                               Dept. of Plant Pathology and Weed Research, ARO, The Volcani
                                               Center, Bet Dagan 50250, Israel
                                               Y. Maoz / Avocado Organization, Israeli Plants Board, Or Yehuda
                                               56000 Israel
                                               O. Golan / Forest Health, Forest Dept. KKL Eshta’ol 99775
                                               Israel

                                               The Asian ambrosia beetle, Euwallacea nr. fornicatus carries
                                               three species of symbiotic fungi namely, Fusarium euwallaceae,
                                               Graphium euwallaceae and Paracremonium pembeum; all three
                                               fungi are cultivated within the galleries excavated in the host tree
                                               xylem. Among the 50 tree species attacked by the beetle few or-
                                               namental and several avocado varieties are severely affected. We
                                               report on new findings about the biology and behavior of this bee-
                                               tle-fungus species complex and their relevance to management in

                                           avocado plantations 0

2016 ‫ אפריל‬,’‫ ‘עלון הנוטע’ שנה ע‬37 ‘Alon Hanotea’ vol. 71 April 2016
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