Hans Peter Ravn

Hans Peter Ravn

Associate Professor

Associate Professor with responsibility for insects on trees in forestry, urban areas and open landscape. Has almost 40 years of experience in research in applied insect ecology in agriculture, horticulture and forestry. Graduated from University of Copenhagen (Biology) in 1983 - Population dynamics of the spruce bark beetle Ips typographus. Since employment at Forest and Landscape - now University of Copenhagen - worked on integrated management methods of the most significant insect pests in forestry, production of Christmas trees, parks and landscape includingbthe challenges from invasive species and climate change.
Recent and on-going research includes investigations on forest entomology, bio-control, invasive species and climate change.

Recent and on-going research includes:

Biocontrol of Adelges nordmannianae (MUDP)

EUPHRESCO projects on Asian Longhorned Beetle (ANOPLORISK, wooden chips as quarantine pest pathway Q-WOODCHIP and on vectors of pine wood nemtodes MONOCHAMUS

Arboreta and botanical gardens as sentinel networks for invasive species (Hartmann)

Capsid bug problems in cocoa producyion in Ghana (DANIDA)

Management strategies for the small fir bark beetle Cryphalus asperatus and other Cryphalus spp.(HedeDanmark, DJ)


Co-ordinator of FP5-project (2002–2005): GIANT ALIEN – Giant Hogweed (Heracleum mantegazzianum) a pernicious invasive weed: Developing a sustainable strategy for alien invasive plant management in Europe. 
Management strategies against mass propagation of Ips typographus following wind fall. Modelling effects of climate change on population dynamics of the bark beetle (2005–). Funded by Nordic Council.
Investigations of Dioryctria abietella, phenology, monitoring, control and effects of climate change (2006–). Funded by Nordic Council.
Management strategy for Cameraria ohridella on horse-chestnut in Denmark (2004–). Funded by Municipal of Copenhagen.
Developing a best practise strategy for Common rag weed, Ambrosia artemissifolia (2008-9). Funded by EUPHRESCO 
Alternatives in control of the field vole Microtus agrestis in reforestation (2006-10). Funded by Danish Forest and Nature Agency
Effects of cutting date on colonisation success of Trypodendron lineatum (2006-10). Funded by Danish Forest and Nature Agency
Experiences on handling the spruce weevil, Hylobius abietis without use of pesticides (2006-12). Funded by Danish Forest and Nature Agency
Handling the great spruce bark beetle Dendroctonus micans in Denmark (2007-12). Funded by Danish Forest and Nature Agency
Nordic Cone Insects and seed insects in Christmas tree production (2007- ). Founded by Nordic Council and PAF (Danish Christmas Tree Growers Association
Management strategy for wolly aphids, Dreyfusia (Adelges) nordmannianae in Abies nordmannianae (2005-10). Founded by PAF (Christmas tree Growers org.)
National survey of Ips cembrae – the larch bark beetle (2008-12). Funded by Danish Forest and Nature Agency
Tools for sustainability impact assessment of the forest-wood chain. EFORWOOD, EU-FP6 2005-2009.
Invasive insect species – monitoring, risk analysis and possible countermeasure – case study Harmonia axyridis, the harlequin ladybird (2009-2012). Funded by VILLUM FONDEN
Several other projects om management of insect pests in Christmas trees and greenery: gall mites, tortricid moth, Strophosoma-weevils etc. (Funded by Danish Christmas Tree Growers Association)

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