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region and the Golan Heights. During the years 2012-2015        5.	 Plaut H.N. (1973): On the biology of Paropta paradoxus (H.S.) (Lep.,
the caterpillars and the larval excavations, open mines and        Cossidae) on grapevine in Israel. Bulletin of Entomological Research 63:
galleries, were monitored in several dozen study plots. Based      237-245.
on the occurrence of early instar larvae and the presence of
new empty pupal exuviae, which are often protruded from         ,‫( בגפן בישראל‬Paropta paradoxa H.S. Cossidae) ‫ הפרופטה‬:)1965( .‫ פלאות נ‬.	6
the gallery openings, we deduced that the oviposition period      .53 ‫ עמ׳‬,‫ רחובות‬,‫ המחלקה לפרסומים מדעיים‬,‫ מכון וולקני לחקר החקלאות‬.12-50
lasts between May and October. The larvae, in general, were
observed by removing dry strips of the bark from the stem       7.	 Esperk T., Tammaru T., Nylin S. (2007): Intraspecific variability in number
and the arms of the vine. The first two instar larvae are the      of larval instars in insects. J Econ Entomol 100(3): 627-645.
most frequently observed groups and consisted mostly of the
monitored larvae; they were recorded mainly in June-July and    The biology and seasonal activity of the
September-October. The early stages were observed boring        carpenter worm Paropta paradoxa (Cossidae)
an ‘open yard’ in the cortex and the sap wood. Intermediate     in Israeli vineyards
(third and fourth instar) and especially the mature (fifth and
sixth) instar larvae were less frequently observed in these     Shmuel Ovadia, Nir Gil / Carmel Vineries, Zichron Yaakov, Israel
‘yards’. Most of the mature larvae occurred within the galler-  Roman Yakovlev / Altai State University, Barnaul, Russia
ies excavated in the xylem. Intermediate and mature larvae      Alex Protasov, Zvi Mendel / Dept. of Entomology, ARO, Volcani Center,
could be found all year round. Most of larvae (ca. 70%) and     Bet Dagan, Israel
their typical excavations (ca 75%) occurred on the vine arms.
Mean gallery density ranged between 2-10 per vine; while        The carpenter worm Paropta paradoxa naturally occurs in the Middle East
gallery densities tended to rise with the increasing vineyard   and develops on woody host plants of different botanical families. Since the
age, but the density was probably also influenced by the        early 1960s it has been recognized as a serious borer pest of table grapes
                                                                in Israel. There has been a steady increase of the borer population growth
grape variety and growth conditions. 0                          since the 1990s. The damage has been mainly observed in the foothills of
                                                                Mts. Carmel, Samaria and Judea, but not at high elevations of the Galilee

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           ‫מדי פרי‬                                              ‫חדש אוגרי נתונים אלחוטיים‬

            ‫מד סוכר‬

‫מד קושיות‬                                                       ‫טמפרטורה ולחות טמפרטורה חיצוני‬                                                  ‫טמפרטורה‬

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