Jalakasurma levikust ja ohtlikkusest Eestis

Abstract

The threat to Ulmus spp. has risen in Estonia, apparently due to the trade of infected elm plants and changing climatic conditions having contributed to the invasion of new pathogens and their vectors. It is known that in Estonia Dutch Elm Disease (DED) has had a devastating impact on elms since the 1930s. Today its agent Ophiostoma ulmi has been replaced by a new, apparently an invasive species Ophiostoma novo-ulmi in most countries of Europe, as well as in Estonia. Since 2013 the health status of elms in Estonia has worsened substantially.

Keywords

• ulmus spp.
• ded
• ophiostoma novo-ulmi subsp. novo-ulmi
• ophiostoma novo-ulmi subsp. americana
• invasive species
• hybrid pathogen
• pathogen vector