Metabarcoding reveals a high diversity of woody host-associated Phytophthora spp. in soils at public gardens and amenity woodlands in Britain

A study of Phytophthora diversity in public gardens and amenity woodlands through the use of metabarcoding of soil samples.

Diversity of woody-host infecting Phytophthora species in public parks and botanic gardens as revealed by metabarcoding, and opportunities for mitigation through best practice

A study of Phytophthora diversity in public gardens and amenity woodlands using metabarcoding.

Oak processionary moth

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 diseases Tree Health Diagnostic and Advisory […]

The importance of trap type, trap colour and capture liquid for catching Dendrolimus pini and their impact on by-catch of beneficial insects

Monitoring traps for the pine-tree lappet moth were tested to find the most effective trap type and colour combination for adult moth capture.

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?

In UK forestry, the synthetic pyrethroid insecticides alpha-cypermethrin and cypermethrin have been used for many years to provide protection for young trees planted on restock sites from damage by the large pine weevil, Hylobius abietis L. However, concerns over the toxicity of these insecticides to aquatic life if misused has led to a search for alternative forms of protection. This paper describes a detailed programme of efficacy experiments undertaken between 2009 and 2014 to find replacements for these products. Over 50 combinations of chemical and non-chemical approaches were tested on 16 different sites.

The lifecycle of Agrilus biguttatus: the role of temperature in its development and distribution, and implications for Acute Oak Decline

The lifecycle of Agrilus biguttatus: the role of temperature in its development and distribution, and implications for Acute Oak Decline

Establishing robust species mixtures

New guidance from Forest Research to help design mixtures at the establishment phase

Novel dendrochronological modelling demonstrates that decades of reduced stem growth predispose trees to Acute Oak Decline

• 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.

Values, management and pest and disease threats associated with ash: A review

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 […]

Factsheet: Climate change and tree diseases

The three main fungal root pathogens already present in the UK, causing significant damage in forestry, are described along with the likely impact of climate change on their spread and severity.

Factsheet: Climate change and diseases of tree foliage

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

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.