Mae'r OS hwn yn diwygio Rheoliad (UE) 2019/2072 (Rheoliad Amodau Ffytoiechydol) i:Adolygu’r rhestrau plâu a roddir o dan gwarantin Prydain Fawr a phlâu a reoleiddir na roddir mohonynt o dan gwarantin yn dilyn asesiadau  wedi’u diweddaru o’r risg o blâu neu newidiadau yn statws pla o fewn Prydain Fawr.Estyn y rhwymedigaeth ynghylch planhigion, cynhyrchion planhigion a gwrthrychau eraill sy'n deillio o drydedd wlad ac y gellir ond eu cyflwyno i Brydain Fawr os bodlonir gofynion arbennig, i gynnwys Aelod-wladwriaethau'r UE, Liechtenstein a'r Swistir, gan drin pob gwlad yn gyfartal.Diwygio gofynion i sicrhau bod yr ardal ddi-bla yn cael ei henwi ar y tystysgrifau ffytoiechydol ar gyfer Tyllwr Emrallt yr Onnen ac i egluro y dylid enwi'r ardal ddi-bla neu le/safle cynhyrchu (yn ôl y gofyn) ar y tystysgrifau ffytoiechydol ar gyferXylella fastidiosa.Cyflwyno mesurau ledled Prydain Fawr i archwilio mewnforion hadauPinus(coed pinwydd) aPseudotsuga menziesii(ffynidwydd Douglas) sy'n blanhigion lletyol y pathogen Fusarium circinatum (cancr pinwydd pyg).Newidiadau gweinyddol i gywiro enw'r genwsChrysanthemum Lar dystysgrifau ffytoiechydol
This SI amends Regulation (EU) 2019/2072 (The Phytosanitary Conditions Regulation) to:Revise GB quarantine and regulated non-quarantine pest lists following updated pest-risk assessments or changes in the status of the pest within Great Britain.Extend the obligation concerning plants, plant products and other objects originating in third countries which may only be introduced into Great Britain if special requirements are met, to include EU Member states, Liechtenstein and Switzerland, treating all countries equally.To amend requirements to ensure the pest free area is named on the phytosanitary certificates in relation to Emerald Ash Borer and further to clarify that the pest free area or place/site of production (as appropriate) should be named on the phytosanitary certificates in relation toXylella fastidiosa.Introduce GB-wide measures to inspect imported Seeds ofPinus.(pines) andPseudotsuga menziesii(Douglas fir) which are host plants of the pathogenFusarium circinatum(pitch pine canker).Administrative amendments to correct the name of the genusChrysanthemum Lon phytosanitary certificates