Latest tree and crop pests added to UK Plant Health Risk Register

Updates and additions to the Risk Register in July 2018 include several new tree pests.

Tree pests recently added to the Risk Register:
  • Takahashia japonica - string cottony scale, polyphagous on broadleaved trees.
  • Planococcus vovae - Nassonov's mealybug, attacks cypress and juniper.
  • Oxycarenus modestus - a bug that feeds on alder seeds, recently recorded in the UK.
  • Adelges pectinatae - Siberian fir woolly aphid, an adelgid pest of fir in northern Europe.
  • Quambalaria eucalypti - a fungus of Eucalyptus present in Portugal and beyond.
Crop pests recently added to the Risk Register:
  • Tetranychus lombardinii - crimson spider mite, a tropical and polyphagous pest.
  • Meloidogyne graminicola - rice root-knot nematode, a pest of rice recently recorded in Italy.
Pests recently reviewed on the Risk Register:
  • Geosmithia morbida - a fungus which causes thousand cankers disease .
  • Pityophthorus juglandis - walnut twig beetle (vector of thousand cankers disease).
  • Euzophera bigella - quince moth.
  • Spodoptera eridania - southern armyworm.
  • Blueberry leaf mottle virus.
  • Rhagoletis mendax - blueberry maggot.
  • Diaporthe vaccinii - fruit rot of blueberry.
  • Blueberry scorch virus - sheep pen hill disease.
  • Eotetranychus lewisi - Lewis spider mite.
Meanwhile, the EU has granted basic substance approval for beer, mustard seed powder and talc E553B. 
Beer can now be used on edible and non-edible crops for slug control, mustard seed powder can be used as a fungicide for wheat seed treatments and talc E553B as an insectifuge and fungifuge for fruit trees and grapevines.

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