Journal of Forest Science (2003) 49, 403-411

L. Jankovský, D. Novotný and R. Mrkva (2003)
Induced wound response of Norway spruce Picea abies P. Karst. after artificial inoculation by imagoes of Ips typographus L.
Journal of Forest Science 49 (9), 403-411
Abstract: Inoculation experiments were carried out on a set of trees with imagoes of Ips typographus L. which origin from the Sumava Mts. and the Krtiny Training Enterprise. The objective of back inoculations was to determine whether species found on the surface of Ips typographus imagoes spread after the inoculation also through host tissues. It the vicinity of inoculation by Ips typographus imagoes, marked necrotic zones are evident including symptoms of the penetration of vascular pathogens through phloem and sapwood. The most marked reactions were observed in case of inoculation by an untreated Ips typographus imago. Treatment of Ips typographus imagoes by Ibefungin and Fundazol preparations did not demonstrate expected effects in full scale. The spores of several ophiostomoid fungi like Ceratocystis polonica (Siem.) C. Moreau were observed on the surface of bark beetles and at the same time were re-isolated from wounds inoculated by Ips typographus imagoes. The other fungi like Ophiostoma bicolor Davidson and Wells, Leptographium cf. lundbergii Lagerberg and Melin., Pezicula eucrita Karst., Phomopsis sp. and other were found in wounds with the imagoes artificial infection.
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Database assignments for author(s): Libor Jankovsky

Research topic(s) for pests/diseases/weeds:
transmission/dispersal of plant diseases

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Ips typographus	Spruce (Picea)	Czech Republic
	Endoconidiophora polonica	Spruce (Picea)	Czech Republic
	Pezicula eucrita	Spruce (Picea)	Czech Republic