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Plant Pest Factsheet - UK Plant Health Information …

Host Plants Halyomorpha halys is a highly polyphagous pest attacking more than 100 plant species, primarily fruit trees and woody ornamentals, but also field crops. Fruit crops: Citrus spp.,

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Updating the UK Rapid Pest Risk Analysis for Xylella ...

planthealthportal.defra.gov.uk

Page 1 of 20 Updating the UK Rapid Pest Risk Analysis for Xylella fastidiosa Defra Risk and Horizon Scanning Team 14th September 2017 Background PRAs are kept under review to ensure they are still fit for purpose taking into account new

Analysis, Risks, Rapid, Risk analysis for xylella fastidiosa, Xylella, Fastidiosa

Rapid Pest Risk Analysis (PRA) for

planthealthportal.defra.gov.uk

1 Rapid Pest Risk Analysis (PRA) for: Phenacoccus fraxinus April 2017 Summary and conclusions of the rapid PRA Phenacoccus fraxinus is a mealybug pest of …

Analysis, Risks, Step, Rapid, Rapid pest risk analysis

Platanus lace bug Corythucha ciliata - UK Plant …

planthealthportal.defra.gov.uk

Host Plants Corythucha ciliata feeds primarily on Platanus spp., especially P. occidentalis.Several other host plants are listed in the literature, including Broussonetia papyrifera, Carya ovata, Chamaedaphne sp., Fraxinus sp.

Plants, Acle, Platanus lace bug corythucha ciliata, Platanus, Corythucha, Ciliata, Corythucha ciliata

Western Conifer Seed Bug Leptoglossus …

planthealthportal.defra.gov.uk

Figure 1. Adult Leptoglossus occidentalis resting on a conifer Western Conifer Seed Bug Leptoglossus occidentalis Background Leptoglossus occidentalis (Heidemann) (Hemiptera: Coreidae) is a Nearctic leaf-

Western, Seed, Occidentalis, Foncier, Western conifer seed bug leptoglossus, Leptoglossus, Western conifer seed bug leptoglossus occidentalis

Plant Pest Factsheet - UK Plant Health Information Portal

planthealthportal.defra.gov.uk

Geographical Distribution Before the current outbreaks in Europe, the pathogen was restricted to the Americas with the exception of a single outbreak affecting pear in Taiwan.

Step, Plants, Factsheet, Plant pest factsheet

Phytophthora ramorum - GOV.UK

planthealthportal.defra.gov.uk

2 Contents Phytophthora ramorum and Phytophthora kernoviae A Practical Guide for Established Parks & Gardens, Amenity Landscape and Woodland Areas 1. Summary 3 2. Reasons for concern 3 3. Biology 5 3.1 Disease spread 5 3.2 Infection 6 3.3 Favourable conditions 6 4. Hosts 7 4.1 Phytophthora ramorum 7 4.2 Phytophthora kernoviae 8 5. …

Phytophthora, Phytophthora ramorum, Ramorum

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