Treatments

The following methods may be used to treat the regulated articles listed for Phytophthora ramorum: (1) Soil must be heated to a temperature of at least 180° F for 30 minutes in the presence of an inspector. (2) Wreaths, garlands, and greenery of Alleghany = Willowood Viburnum (Viburnum x rhytidophylloides), Andrew’s Clintonia Bead Lily (Clintonia andrewsiana), Arrowwood or Bodant Viburnum (Viburnum x bodnantense), Bay Laurel (Laurus nobilis), Bigleaf Maple (Acer macrophyllum), Burkwood Viburnum (Viburnum x burkwoodii), California Bay Laurel = Pepperwood = Oregon Myrtle (Umbellularia californica), Californina Black Oak (Quercus kelloggii), California Buckeye (Aesculus californica), California Coffeeberry (Rhamnus californica), California Hazelnut (Corylus cornuta), California Honeysuckle (Lonicera hispidula), California maidenhair fern (Adiantum jordanii), California wood fern (Dryopteris arguta), Camellia – all species, hybrids and cultivars (Camellia spp.), Canyon live oak (Quercus chrysolepis), Cascara (Rhamnus purshiana), Chinese Pieris (Pieris Formosa var. forrestii), Chinese witch-hazel (Hamamelis mollis), Coast Live Oak (Quercus agrifolia), Coast Redwood (Sequoia sempervirens), David Viburnum (Viburnum davidii), Doublefile Viburnum (Viburnum plicatum var. tomentosum), Douglas-fir (Pseudotsuga menziesii var. menziesii), Drooping leucothoe (Leucothoe fontanesiana), European Ash (Fraxinus excelsior), European beech (Fagus sylvatica), European cranberrybush Viburnum (Viburnum opulus), European Ewe (Taxus baccata), European Turkey Oak (Quercus cerris), False Solomon’s Seal (Maianthemum racemosa = Smilacina racemosum), Formosa Firethorn (Pyracantha koidzumii), Fragrant Viburnum (Viburnum farreri= V. fragans), Goat willow (Salix caprea), Grand Fir (Abies grandis), Giselinia (Griselinia littoralis), Himalaya Pieris (Pieris formosa), Holm Oak (Quercus ilex), Horse Chestnut (Aesculus hippocastanum), huckleberry (Vaccinium ovatum), Irontree (Parrotia persica), Japanese Pieris (Pieris japonica), Laurustinus (Viburnum tinus), Lilac (Syringa vulgaris), Loebner Magnolia (Magnolia x loebneri) Madrone (Arbutus menziesii), Manzanita (Arctostaphylos manzanita), Mountain laurel (Kalmia latifolia), Northern Red Oak (Quercus rubra), Pacific Yew (Taxus brevifolia), RULES AND REGULATIONS GOVERNING QUARANTINE OF CHAPTER 0080-06-26 SUDDEN OAK DEATH (PHYTOPHTHORA RAMORUM) Pieris (Pieris formoso var. forrestii x Pieris japonica), Pieris “Brouwer’s Beauty”(Pieris floribunda x japonica), Pieris “Forest Flame” (Pieris Formosa x japonica), Planetree Maple (Acer pseudoplatanus), Poison Oak (Toxicodendron diversilobum), Prague Viburnum (Viburnum x pragense), Red Tip Photinia (Photinia fraseri), Rhododendron (Rhododendron species, including azalea), Robel Beech (Nothofagus obliqua), Salmonberry (Rubus spectabilis), Saucer Magnolia (Magnolia x soulangeana), Scotch Heather (Calluna vulgaris), Shreve’s oak (Quercus parvula var. shrevei), Spicebush (Calycanthus occidentalis), Southern Red Oak (Quercus falcata), Star Magnolia (Magnolia stellata), Strawberry tree (Arbutus unedo), Sweet Chestnut (Castanea sativa), Tanoak (Lithocarpus densiflorus), Toyon (Heteromeles arbutifolia), Viburnum (Viburnum x carlcephalum x V. utile), Victorian box (Pittosporum undulatum), Wayfaringtree Viburnum (Viburnum lantana), Western starflower (Trientalis latifolia), Winter’s bark (Drimys winteri), Witch Hazel (Hamamelis virginiana), Wood Rose (Rosa gymnocarpa), Yew (Taxus media) and must be dipped for 1 hour in water that is held at a temperature of at least 160° F.