Recent bark beetle outbreak in Czechia

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020702%3A_____%2F23%3AN0000170" target="_blank" >RIV/00020702:_____/23:N0000170 - isvavai.cz</a>

Result on the web

<a href="https://www.plantedforests.org/iufro-conference-2023-bordeaux-book-of-abstracts/" target="_blank" >https://www.plantedforests.org/iufro-conference-2023-bordeaux-book-of-abstracts/</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Recent bark beetle outbreak in Czechia

Original language description

Forest Protection Service, service included in the scientific department of the same of the Forestry and Game Management Research Institute, annually gathers the data about occurrence of forest harmful agents. Several outbreaks of different insect was recorded throughout the long term history. Outbreaks of bark beetles are of the largest and the most devastating. In recent years, since 2013, historically the biggest outbreak in spruce stands was recorded. The highest infestation belonged to Ips typographus mainly, but Ips duplicatus is still in epidemic stage locally. Mixed attack of both species and together with Pityogenes chalcographus occurs very often. While Ips typographus is known as the major phloemophagous pest on spruce for decades, even centuries, Ips duplicatus spread its distribution through the country within last few decades, reaching very new locations and representing the most aggressive and invasive species. In the period of the last outbreak, since 2018 until 2022, more than 50 mil. m3 of registered spruce bark beetle infested wood was recorded (70% of forest area monitored), with an all-time high of 15 million m3 in 2020. The total volume of registered spruce bark beetle infested wood decreased in 2021 for the first time in eight years! Significant decrease appeared also in 2022, but the situation may change again to the opposite rapidly and easily in the case of weather change. Actual stage of spruce bark beetles is necessary to suggest as catastrophic on most of the whole Czechia. Bark beetle gradation is still out of control on many places and its retreat could occur only with a de facto loss of attractive spruce stands or longer-term climatic reversal. The main priority in forest protection is maximal attention to investigation of freshly infested trees and their proper sanitation.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

40102 - Forestry

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů