Milder and wetter winters, followed by increased spring rainfall, are likely to enhance the survival and infection potential of many tree pathogens. Hotter, drier summers leading to drought stress in trees will also increase their susceptibility to disease and expand the distribution range of some pathogens. The increased incidence and severity of diseases caused by Phytophthora species reduces the benefits that trees provide, including climate change mitigation.
Genome sequencing is used to determine the origins and genetic diversity of Dothistroma populations throughout the UK, and confirms the findings of our earlier paper discerning population structure with microsatellite analysis.
Tree Pest Advisory Note A major defoliator of oak in Europe. This document details signs and symptoms of the named tree pest(s) or disease(s) and provides advice on what to do if you suspect the pest or disease is present. Related pages Main oak processionary moth resources page Research and advice on tree pests and […]
Are there viable chemical and non-chemical alternatives to the use of conventional insecticides for the protection of young trees from damage by the large pine weevil Hylobius abietis L. in UK forestry?
• Novel dendrochronological modelling was developed to explore oak stem growth trends.
• Trees with long-term AOD symptoms may have been predisposed many decades earlier.
• Diseased trees struggle to take advantage of favourable growing conditions.
• Historic episodes of stress may impact the future resilience of oaks to disturbance.
This report reviews and summarises some of the key evidence from around the world on values associated with ash trees, and the management decisions about both ash dieback and emerald ash borer. The evidence on values focuses on historical, social and cultural values while the parts on management decisions looks at actual decisions taken as […]
The six main foliar pathogens already causing significant damage to conifers and broadleaved tree species in the UK are described along with the likely impact of climate change on their spread and severity.
Acetamiprid, chlorantraniliprole, and in some situations the physical barriers MultiPro® or Kvaae® wax, can be alternatives to traditional synthetic pyrethroid insecticides for the protection of young conifers from damage by the large pine weevil Hylobius abietis L.
This Report describes the biological and environmental factors that influence attack frequency and severity from Ips bark beetles and assesses strategies for their management, with emphasis on the major threat posed by I. typographus.
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