Results 171 to 180 of about 2,451 (206)
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The threshold of successful attack by Ips typographus on Picea abies: A field experiment
Forest Ecology and Management, 1986Abstract The spruce bark beetle, Ips typographus, was induced to attack Norway spruce by means of pheromone dispensers. The degree of attack on each tree was recorded and the trees were later categorized as surviving or dying, according to the degree of sapwood blue-staining caused by the attacks.
Mulock, P., Christiansen, E.
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Individual variation in aggregation pheromone content of the bark beetle,Ips typographus
Journal of Chemical Ecology, 1988The total amounts of, and proportions among, components of the aggregation pheromone produced byIps typographus were found to vary considerably among individuals excised from attacks on standing spruce trees. Chemical analyses of 392 individual male beetles were made by GC-MS. Both unmated and mated males had log-normal frequency distributions in their
G, Birgersson +3 more
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Ips typographus - carelessly forgotten threat
Защита и карантин растений, 2021Yu.I. Gninenko +3 more
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Zur Lebensweise des Buchdruckers, Ips typographus L
Anzeiger für Schädlingskunde, 19501. Unter Bedingungen einer Massenvermehrung uberwintern dort, wo winterliche Bekampfungsmasnahmen nicht sehr sorgfaltig durchgefuhrt worden sind, grose Mengen von Buchdruckern im Boden. 2. Uber Temperaturabhangigkeit und Verlauf des Schwarmens von Bodenuberwinterern werden nahere Angaben gemacht. 3.
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Observations on Ips Typographus L. trapping on windfallen wood
1987Results of Ips typographus trapping experiments using pheromones (pheroprax) spruce forests ruined by a storm in the Hurtières range (Savoie) and in Chartreuse (Isère) are presented. The biological cycle of this insect in the given region has been described.
Abgrall, J.F., Schvester, D.
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Ips typographus Predisposition Maps for Austrian Forests
2023Hallas, Till +8 more
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Ulrastructural details of Ips typographus entomopoxvirus spheroids and spindles
2018Transmission electron microscopy (TEM) – showed the presence of virus spheroids and of spindles free in the cytoplasm of midgut epithelial cells and occluded together with virus particles into the spheroids of Ips typographus.\nScanning electron microscopy (SEM) – showed the whole structure of the spheroids and clarified some of the structures of the ...
Pausch, M. +2 more
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Ips typographus (eight-toothed bark beetle)
PlantwisePlus Knowledge Bank, 2022openaire +1 more source
Northward shift in temperature sum isoclines may favour Ips typographus outbreaks in European Russia
Agricultural and Forest Entomology, 2020Ivan Romashkin +2 more
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