{"id":2620,"date":"2016-09-23T12:59:45","date_gmt":"2016-09-23T19:59:45","guid":{"rendered":"http:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=2620"},"modified":"2022-05-16T10:13:30","modified_gmt":"2022-05-16T17:13:30","slug":"white-peach-scale-pseudaulacaspis-pentagona-targioni","status":"publish","type":"post","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=2620","title":{"rendered":"White Peach Scale | Pseudaulacaspis pentagona (Targioni)"},"content":{"rendered":"
\"White<\/a><\/div>\n
California Pest Rating for<\/strong><\/h5>\n
Pseudaulacaspis pentagona<\/em><\/strong> (Targioni): White Peach Scale<\/strong><\/h5>\n
Hemiptera: Diaspididae<\/strong><\/h5>\n
Pest Rating: A<\/strong><\/h5>\n
\n
PEST RATING PROFILE<\/strong><\/h5>\n
Initiating Event: <\/strong><\/h5>\n

Pseudaulacaspis pentagona<\/em> is frequently intercepted by CDFA.\u00a0 A pest rating proposal is required to justify its pest rating.<\/p>\n

History & Status:<\/strong><\/h5>\n

Background<\/u><\/strong>:\u00a0 Pseudaulacaspis pentagona<\/em> is a highly polyphagous armored scale insect.\u00a0 It is considered an important economic pest of peach trees and woody ornamentals and has destroyed many peach orchards in the southeast USA1<\/sup>.\u00a0 Known hosts include: Acanthaceae<\/strong>: Acanthus sp.<\/em>2<\/sup>, Asystasia<\/em>2<\/sup>,<\/em> Crossandra sp.<\/em> 2<\/sup>; Actinidiaceae<\/strong>: Actinidia arguta<\/em>2<\/sup>, Actinidia polygama<\/em>2<\/sup>, Actinidia sp.<\/em> 2<\/sup>; Amaranthaceae<\/strong>: Gomphrena sp.<\/em> 2<\/sup>, Salicornia fruticosa<\/em>2<\/sup>; Anacardiaceae<\/strong>: Mangifera sp.<\/em> 2<\/sup>, Mangifera indica<\/em>2<\/sup>, Rhus sp.<\/em> 2<\/sup>, Schinus sp.<\/em> 2<\/sup>, Spondias sp.<\/em> 2<\/sup>; Apocynaceae<\/strong>: Allamanda cathartica<\/em>2<\/sup>, Allamanda grandiflora<\/em>2<\/sup>, Allamanda sp.<\/em> 2<\/sup>, Asclepius sp.<\/em> 2<\/sup>, Calotropis procera<\/em>2<\/sup>, Calotropis<\/em>2<\/sup>,<\/em> Catharanthus roseus<\/em>2<\/sup>, Cynanchym perrieri<\/em>2<\/sup>, Ervatamia orientalis<\/em>2<\/sup>, Marsdenia clausa<\/em>2<\/sup>, Nerium oleander<\/em>2<\/sup>, Nerium sp.<\/em> 2<\/sup>, Plumeria alba<\/em>2<\/sup>, Plumeria rubra<\/em>2<\/sup>, Plumeria sp.<\/em> 2<\/sup>, Plumeria acutifolia<\/em>2<\/sup>, Rhynchospermum verticulatum<\/em>2<\/sup>, Rhynchospermum sp.<\/em> 2<\/sup>, Tylophora asthmatica<\/em>2<\/sup>, Vinca rosea<\/em>2<\/sup>; Aquifoliaceae<\/strong>: Ilex sp.<\/em> 2<\/sup>, Ilex opaca<\/em>2<\/sup>; Araceae<\/strong>: Philodendron sp.<\/em> 2<\/sup>, Symplocarpus<\/em>2<\/sup>;<\/em> Araliaceae<\/strong>: Arailia sp.<\/em> 2<\/sup>, Aralia spinosa<\/em>2<\/sup>, Aralia elata<\/em>2<\/sup>, Hedera sp.<\/em> 2<\/sup>, Kalopanax septemlobus<\/em>2<\/sup>; Arecaceae<\/strong>: Chrysalidocarpus lutescens<\/em>2<\/sup>, Cocos nucifera<\/em>2<\/sup>, Phoenix<\/em>2<\/sup>;<\/em> Asteraceae<\/strong>: Arctium sp.<\/em> 2<\/sup>, Bahia fastigata<\/em>2<\/sup>, Helianthus sp.<\/em> 2<\/sup>, Helianthus annuus<\/em>2<\/sup>, Mikania<\/em>2<\/sup>;<\/em> Berberidaceae<\/strong>: Berberis<\/em>2<\/sup>,<\/em> Mahonia sp.<\/em> 2<\/sup>, Betulaceae<\/strong>: Osmanthus ilicifolius<\/em>2<\/sup>, Osmanthus asiaticus<\/em>2<\/sup>, Ostrya<\/em>2<\/sup>;<\/em> Bignoniaceae<\/strong>: Bignonia<\/em>2<\/sup>,<\/em> Catalpa ovata<\/em>2<\/sup>, Catalpa syringifolia<\/em>2<\/sup>, Catalpa vulgaris<\/em>2<\/sup>, Catalpa yunnanensis<\/em>2<\/sup>, Catalpa sp.<\/em> 2<\/sup>, Catalpa bignonioides<\/em>2<\/sup>, Catalpa bungei<\/em>2<\/sup>, Tecoma sp.<\/em> 2<\/sup>, Boraginaceae<\/strong>: Ehretia ovalifolia<\/em>2<\/sup>, Ehretia acuminata<\/em>2<\/sup>, Heliotropium peruvianum<\/em>2<\/sup>, Messersmidia argentea<\/em>2<\/sup>, Tournefortia argentea<\/em>2<\/sup>, Brassicaceae<\/strong>: Brassica willdenovii<\/em>2<\/sup>, Brassica rapa<\/em>2<\/sup>, Iberis sp.<\/em> 2<\/sup>; Cannabaceae<\/strong>: Trema sp.<\/em> 2<\/sup>; Capparaceae<\/strong>: Cleome spinosa<\/em>2<\/sup>; Caricaceae<\/strong>: Carica papaya<\/em>2<\/sup>, Carica sp.<\/em> 2<\/sup>; Caryophyllaceae<\/strong>: Dianthus sp.<\/em> 2<\/sup>; Casuarinaceae<\/strong>: Casuarina<\/em>2<\/sup>;<\/em> Celastraceae<\/strong>: Euonymus alata<\/em>2<\/sup>, Euonymus sp.<\/em> 2<\/sup>, Euonymus europaea<\/em>2<\/sup>, Orixa japonica<\/em>2<\/sup>; Clusiaceae<\/strong>: Calophyllum sp.<\/em> 2<\/sup>, Hypericum sp.<\/em> 2<\/sup>, Mammea americana<\/em>2<\/sup>; Convolvulaceae<\/strong>: Argyreia speciosa<\/em>2<\/sup>, Argyreia nervosa<\/em>2<\/sup>, Ipomea batatas<\/em>2<\/sup>, Ipomea purpurea<\/em>2<\/sup>, Ipomea sp.<\/em> 2<\/sup>, Ipomoea tiliacea<\/em>2<\/sup>, Cornaceae<\/strong>: Cornus sp.<\/em> 2<\/sup>; Crassulaceae<\/strong>: Bryophyllum calycinum<\/em>2<\/sup>, Bryophyllum pinnatum<\/em>2<\/sup>, Kalanchoe nadijae<\/em>2<\/sup>, Kalanchoe orgyalis<\/em>2<\/sup>, Kalanchoe pinnatum<\/em>2<\/sup>, Kalanchoe sp.<\/em> 2<\/sup>, Sedum sp.<\/em> 2<\/sup>; Cucurbitaceae<\/strong>: Citrullus vulgaris<\/em>2<\/sup>, Cucurbita sp.<\/em> 2<\/sup>; Cycadaceae<\/strong>: Cycas revoluta<\/em>2<\/sup>, Cycas media<\/em>2<\/sup>, Cycas sp.<\/em> 2<\/sup>, Zamia<\/em>2<\/sup>;<\/em> Ebenaceae<\/strong>: Diospyros sp.<\/em> 2<\/sup>, Diospyros kaki<\/em>2<\/sup>, Diospyros virginiana<\/em>2<\/sup>; Elaeagnaceae<\/strong>: Elaeagnus<\/em>2<\/sup>;<\/em> Euphorbiaceae<\/strong>: Aleurites<\/em>2<\/sup>,<\/em> Codiaeum sp.<\/em> 2<\/sup>, Croton sp.<\/em> 2<\/sup>, Euphorbiaceae sp.<\/em> 2<\/sup>, Hevea<\/em>2<\/sup>,<\/em> Jatropha gossypifolia<\/em>2<\/sup>, Jatropha curcas<\/em>2<\/sup>, Jatropha integerrima<\/em>2<\/sup>, Jatropha sp.<\/em> 2<\/sup>, Macaranga sp.<\/em> 2<\/sup>, Mallotus japonicus<\/em>2<\/sup>, Manihot sp.<\/em> 2<\/sup>, Manihot esculenta<\/em>2<\/sup>, Pedilanthus tithymaloides<\/em>2<\/sup>, Poinsettia<\/em>2<\/sup>,<\/em> Ricinus communis<\/em>2<\/sup>, Ricinus sp.<\/em> 2<\/sup>, Sapium sebiferum<\/em>2<\/sup>, Sebastiana ligustrina<\/em>2<\/sup>; Fabaceae<\/strong>: Acacia sp.<\/em> 2<\/sup>, Acacia arabica<\/em>2<\/sup>, Albizia stipulata<\/em>2<\/sup>, Bauhinia sp.<\/em> 2<\/sup>, Cajanus cajan<\/em>2<\/sup>, Cassia alata<\/em>2<\/sup>, Cercis sp.<\/em> 2<\/sup>, Cercis canadensis<\/em>2<\/sup>, Crotaleria juncea<\/em>2<\/sup>, Crotolaria sp.<\/em> 2<\/sup>, Cytisus scoparius<\/em>2<\/sup>, Cytisus nigricans<\/em>2<\/sup>, Erythrina poeppigiana<\/em>2<\/sup>, Erythrina indica<\/em>2<\/sup>, Erythrina glauca<\/em>2<\/sup>, Erythrina sp.<\/em> 2<\/sup>, Genista sp.<\/em> 2<\/sup>, Gleditschia triacanthos<\/em>2<\/sup>, Gleditschia sp.<\/em> 2<\/sup>, Gleditschia ferox<\/em>2<\/sup>, Glycine max<\/em>2<\/sup>, Kennedya<\/em>2<\/sup>,<\/em> Lespedeza sp.<\/em> 2<\/sup>, Ononis sp.<\/em> 2<\/sup>, Phaseolus vulgaris<\/em>2<\/sup>, Pueraria sp.<\/em> 2<\/sup>, Robinia pseudoacacia<\/em>2<\/sup>, Sarothamnus<\/em>2<\/sup>,<\/em> Sophora japonica<\/em>2<\/sup>, Vigna sp.<\/em> 2<\/sup>; Fagaceae<\/strong>: Castanea sp.<\/em> 2<\/sup>, Castanea crenata<\/em>2<\/sup>, Quercus acutissima<\/em>2<\/sup>; Geraniaceae<\/strong>: Geranium sp.<\/em> 2<\/sup>, Pelargonium zonale<\/em>2<\/sup>, Pelargonium inquinans<\/em>2<\/sup>, Pelargonium sp.<\/em> 2<\/sup>; Ginkgoaceae<\/strong>: Ginkgo<\/em>2<\/sup>;<\/em> Grossulariaceae<\/strong>: Ribes sp.<\/em> 2<\/sup>; Hydrangeaceae<\/strong>: Hydrangea sp.<\/em> 2<\/sup>; Juglandaceae<\/strong>: Juglans regia<\/em>2<\/sup>, Juglans mandshurica<\/em>2<\/sup>, Juglans sp.<\/em> 2<\/sup>, Juglans nigra<\/em>2<\/sup>, Pterocarya stenoptera<\/em>2<\/sup>; Lamiaceae<\/strong>: Callicarpa sp.<\/em> 2<\/sup>, Nepeta sp.<\/em> 2<\/sup>; Lauraceae<\/strong>: Cinnamomum<\/em>2<\/sup>,<\/em> Sassafras sp.<\/em> 2<\/sup>; Liliaceae<\/strong>: Draceana sp.<\/em> 2<\/sup>; Loganiaceae<\/strong>: Buddleia davidii<\/em>2<\/sup>, Gelsemium sp.<\/em> 2<\/sup>; Loranthaceae<\/strong>: Loranthus sp.<\/em> 2<\/sup>; Lythraceae<\/strong>: Lagerstroemia flos-reginae<\/em>2<\/sup>; Magnoliaceae<\/strong>: Magnolia sp.<\/em> 2<\/sup>; Malvaceae<\/strong>: Althaea rosea<\/em>2<\/sup>, Althaea sp.<\/em> 2<\/sup>, Dombeya sp.<\/em> 2<\/sup>, Firmiana simplex<\/em>2<\/sup>, Firmiana plantanifolia<\/em>2<\/sup>, Gossypium sp.<\/em> 2<\/sup>, Gossypium brasiliense<\/em>2<\/sup>, Guazuma ulmifolia<\/em>2<\/sup>, Hibiscus sp.<\/em> 2<\/sup>, Hibiscus diversifolius<\/em>2<\/sup>, Hibiscus esculentum<\/em>2<\/sup>, Hibiscus manihot<\/em>2<\/sup>, Hibiscus mutabilis<\/em>2<\/sup>, Hibiscus rosa-sinensis<\/em>2<\/sup>, Hibiscus tiliaceus<\/em>2<\/sup>, Malachra sp.<\/em> 2<\/sup>, Malvastrum tricuspidatum<\/em>2<\/sup>, Montezuma speciosissima<\/em>2<\/sup>, Sida<\/em>2<\/sup>,<\/em> Sterculia plantifolia<\/em>2<\/sup>, Sterculia sp.<\/em> 2<\/sup>, Theobroma sp.<\/em> 2<\/sup>, Tilia miqueliana<\/em>2<\/sup>, Triumfetta bartramia<\/em>2<\/sup>, Urena sinuata<\/em>2<\/sup>, Urena lobata<\/em>2<\/sup>; Meliaceae<\/strong>: Cedrela sp.<\/em> 2<\/sup>, Cedrela toona<\/em>2<\/sup>, Melia sp.<\/em> 2<\/sup>, Melia azedarach<\/em>2<\/sup>; Moraceae<\/strong>: Broussonetia sp.<\/em> 2<\/sup>, Broussonetia kazinoki<\/em>2<\/sup>, Broussonetia papyrifera<\/em>2<\/sup>, Castilla sp.<\/em> 2<\/sup>, Ficus sp.<\/em> 2<\/sup>, Morus nigra<\/em>2<\/sup>, Morus rubra<\/em>2<\/sup>, Morus sp.<\/em> 2<\/sup>, Morus alba<\/em>2<\/sup>, Morus indica<\/em>2<\/sup>, Morus bombycis<\/em>2<\/sup>; Musaceae<\/strong>: Strelitzia<\/em>2<\/sup>;<\/em> Myrtaceae<\/strong>: Eugenia sp.<\/em> 2<\/sup>, Psidium<\/em>2<\/sup>;<\/em> Oleaceae<\/strong>: Chionanthus virginicus<\/em>2<\/sup>, Fraxinus chinensis<\/em>2<\/sup>, Fraxinus excelsior<\/em>2<\/sup>, Fraxinus sp.<\/em> 2<\/sup>, Jasminum sp.<\/em> 2<\/sup>, Jasminum sp.<\/em> 2<\/sup>, Ligustrum obtusifolium<\/em>2<\/sup>, Ligustrum japonicum<\/em>2<\/sup>, Ligustrum ibota<\/em>2<\/sup>, Ligustrum sp.<\/em> 2<\/sup>, Osmanthus sp.<\/em> 2<\/sup>, Syringa vulgaris<\/em>2<\/sup>, Syringa sp.<\/em> 2<\/sup>; Onagraceae<\/strong>: Fuchsia sp.<\/em> 2<\/sup>; Orchidaceae<\/strong>:, Ellaeanthus sp.<\/em> 2<\/sup>, Stanhopea sp.<\/em> 2<\/sup>; Pandanaceae<\/strong>: Pandanus sp.<\/em> 2<\/sup>; Passifloraceae<\/strong>: Passiflora sp.<\/em> 2<\/sup>, Passiflora edulis<\/em>2<\/sup>, Passiflora quadrangularis<\/em>2<\/sup>; Piperaceae<\/strong>: Piper sp.<\/em> 2<\/sup>, Piper umbellatum<\/em>2<\/sup>, Potomorphe umbellata<\/em>2<\/sup>; Pittosporaceae<\/strong>: Pittosporum sp.<\/em> 2<\/sup>; Platanaceae<\/strong>: Phytolacca rivinoides<\/em>2<\/sup>, Platanocephalus indicus<\/em>2<\/sup>, Platanus<\/em>2<\/sup>;<\/em> Polygalaceae<\/strong>: Polygala<\/em>2<\/sup>;<\/em> Ranunculaceae<\/strong>: Clematis sp.<\/em> 2<\/sup>, Delphinium sp.<\/em> 2<\/sup>, Paeonia<\/em>2<\/sup>;<\/em> Rhamnaceae<\/strong>: Hovenia dulcis<\/em>2<\/sup>, Rhamnus alaternus<\/em>2<\/sup>, Rhamnus sp.<\/em> 2<\/sup>, Rhamnus elaternum<\/em>2<\/sup>, Ziziphus sp.<\/em> 2<\/sup>; Rosaceae<\/strong>: Amygdalus communis<\/em>2<\/sup>, Amygdalus sp.<\/em> 2<\/sup>, Amygdalus armeniaca<\/em>2<\/sup>, Amygdalus persica<\/em>2<\/sup>, Armeniaca<\/em>2<\/sup>,<\/em> Cerasus<\/em>2<\/sup>,<\/em> Cliffortia polygonifolia<\/em>2<\/sup>, Cotoneaster sp.<\/em> 2<\/sup>, Cydonia sp.<\/em> 2<\/sup>, Cydonia oblonga<\/em>2<\/sup>, Cydonia vulgaris<\/em>2<\/sup>, Kerria japonica<\/em>2<\/sup>, Malus pumila<\/em>2<\/sup>, Malus formosana<\/em>2<\/sup>, Malus sylvestris<\/em>2<\/sup>, Persica vulgaris<\/em>2<\/sup>, Photinia serrulata<\/em>2<\/sup>, Prunus sp.<\/em> 2<\/sup>, Prunus mume<\/em>2<\/sup>, Prunus communis<\/em>2<\/sup>, Prunus domestica<\/em>2<\/sup>, Prunus laurocerasus<\/em>2<\/sup>, Prunus persica<\/em>2<\/sup>, Prunus yedoensis<\/em>2<\/sup>, Prunus subhirtella<\/em>2<\/sup>, Prunus sargentii<\/em>2<\/sup>, Prunus salicina<\/em>2<\/sup>, Prunus pseudocerasus<\/em>2<\/sup>, Prunus amygdaloides<\/em>2<\/sup>, Prunus armeniaca<\/em>2<\/sup>, Prunus avium<\/em>2<\/sup>, Prunus pognostyla<\/em>2<\/sup>, Prunus cerasus<\/em>2<\/sup>, Pyrus serotina<\/em>2<\/sup>, Rosa<\/em>2<\/sup>,<\/em> Rubus<\/em>2<\/sup>,<\/em> Sorbus commixta<\/em>2<\/sup>, Spiroea japonica<\/em>2<\/sup>, Stranvaesia niitakayamensis<\/em>2<\/sup>; Rubiaceae<\/strong>: Bouvardia<\/em>2<\/sup>,<\/em> Cinchona sp.<\/em> 2<\/sup>, Galium sp.<\/em> 2<\/sup>, Morinda citrifolia<\/em>2<\/sup>, Palicourea sp.<\/em> 2<\/sup>; Rutaceae<\/strong>: Citrus maxima<\/em>2<\/sup>, Citrus reticulata<\/em>2<\/sup>, Citrus sp.<\/em> 2<\/sup>, Citrus aurantium<\/em>2<\/sup>, Evodia rutaecarpa<\/em>2<\/sup>, Zanthoxylum<\/em>2<\/sup>,<\/em> Zanthoxylum piperitum<\/em>2<\/sup>; Salicaceae<\/strong>: Flacourtia<\/em>2<\/sup>,<\/em> Populus sp.<\/em> 2<\/sup>, Populus sieboldi<\/em>2<\/sup>, Populus alba<\/em>2<\/sup>, Salix warburgii<\/em>2<\/sup>, Salix nigra<\/em>2<\/sup>, Salix kinuyanagi<\/em>2<\/sup>, Salix glandulosa<\/em>2<\/sup>, Salix chaenomeloides<\/em>2<\/sup>, Salix babylonica<\/em>2<\/sup>, Salix sp.<\/em> 2<\/sup>; Santalaceae<\/strong>: Phoradendron flavescens<\/em>2<\/sup>; Sapindaceae<\/strong>: Acer<\/em>2<\/sup>,<\/em> Aesculus pavia<\/em>2<\/sup>, Aesculus hippocastanum<\/em>2<\/sup>, Koelreuteria paniculata<\/em>2<\/sup>, Nephelium<\/em>2<\/sup>;<\/em> Sapotaceae<\/strong>: Sideroxilon marmulano<\/em>2<\/sup>; Saxifragaceae<\/strong>: Deutzia scabra<\/em>2<\/sup>, Ribes rubrum<\/em>2<\/sup>, Ribes grossularia<\/em>2<\/sup>, Ribes sinanense<\/em>2<\/sup>; Scrophulariaceae<\/strong>: Angelonia salicariaefolia<\/em>2<\/sup>, Buddleja sp.<\/em> 2<\/sup>, Myoporum pictum<\/em>2<\/sup>, Paulownia tomentosa<\/em>2<\/sup>, Paulownia sp.<\/em> 2<\/sup>, Scrophularia<\/em>2<\/sup>,<\/em> Veronica<\/em>2<\/sup>;<\/em> Simaroubaceae<\/strong>: Ailanthus glandulosa<\/em>2<\/sup>, Picrasma quassioides<\/em>2<\/sup>; Solanaceae<\/strong>: Capsicum grossum<\/em>2<\/sup>, Capsicum annum<\/em>2<\/sup>, Capsicum sp.<\/em> 2<\/sup>, Datura suaveolens<\/em>2<\/sup>, Lycopersicon esculentum<\/em>2<\/sup>, Nicotiana tabacum<\/em>2<\/sup>, Solanum verbascifolium<\/em>2<\/sup>, Solanum rugosum<\/em>2<\/sup>, Solanum uporo<\/em>2<\/sup>, Solanum auriculatum<\/em>2<\/sup>, Solanum sp.<\/em> 2<\/sup>; Theaceae<\/strong>: Camellia sp.<\/em> 2<\/sup>, Thea sinensis<\/em>2<\/sup>; Ulmaceae<\/strong>: Aphananthe aspera<\/em>2<\/sup>, Celtis australis<\/em>2<\/sup>, Celtis sinensis<\/em>2<\/sup>, Trema lamarckiana<\/em>2<\/sup>, Trema micrantha<\/em>2<\/sup>, Ulmus campestris<\/em>2<\/sup>, Ulmus sp.<\/em> 2<\/sup>, Zelkova serrata<\/em>2<\/sup>; Urticaceae<\/strong>: Boehmeria sp.<\/em> 2<\/sup>, Urtica dioica<\/em>2<\/sup>; Verbenaceae<\/strong>: Callicaria superba<\/em>2<\/sup>, Callicarpa americana<\/em>2<\/sup>, Callicarpa lanata<\/em>2<\/sup>, Lantana sp.<\/em> 2<\/sup>, Stachytarpheta indica<\/em>2<\/sup>, Stachytarpheta jamaicensis<\/em>2<\/sup>, Stachytarpheta dichotoma<\/em>2<\/sup>, Stachytarpheta mutabilis<\/em>2<\/sup>, Stachytarpheta sp.<\/em> 2<\/sup>, Stachytarpheta urticifolia<\/em>2<\/sup>, Stachytarpheta urticaefolia<\/em>2<\/sup>, Verbena sp.<\/em> 2<\/sup>, Verbena bonariensis<\/em>2<\/sup>; Vitaceae<\/strong>: Quinaria<\/em>2<\/sup>,<\/em> Vitis vinifera<\/em>2<\/sup>, Vitis sp.<\/em> 2<\/sup>.\u00a0 White peach scale may be transported long distances when infested plants or fresh plant parts are moved.<\/p>\n

Worldwide Distribution<\/u>:<\/strong> Pseudaulacaspis pentagona<\/em> is believed to be native to Japan or China but has spread throughout much of the world1<\/sup>.\u00a0 It is established in the east from Texas to Florida and as far north as Maine1<\/sup>.\u00a0 It was first found in Hawaii in 19971<\/sup>.<\/p>\n

Official Control<\/u>:<\/strong> Pseudaulacaspis pentagona<\/em> is listed as a harmful organism by Algeria, Armenia, Azerbaijan, Belarus, Bolivia, Chile, French Polynesia, Georgia, Honduras, Japan, Kazakhstan, Mexico, the Republic of Moldova, the Russian Federation, Tajikistan, Turkmenistan, Ukraine, Uzbekistan, and Vietnam3<\/sup>.<\/sub><\/p>\n

California Distribution<\/u>:\u00a0<\/strong> Pseudaulacaspis pentagona<\/em> has never been found in the environment of California.<\/p>\n

California Interceptions<\/u>:<\/strong>\u00a0 Pseudaulacaspis pentagona<\/em> has been intercepted by CDFA\u2019s high risk programs, dog teams, and border stations 408 times.\u00a0 Many of these interceptions have been on papaya and kiwi fruits from Hawaii and kiwi fruits from Italy.<\/p>\n

The risk Pseudaulacaspis pentagona<\/em> (white peach scale) would pose to California is evaluated below.<\/p>\n

Consequences of Introduction:\u00a0<\/strong><\/h5>\n

1) Climate\/Host Interaction:<\/strong> Due to its highly polyphagous nature and current establishment in a range of climates from Hawaii to Canada white peach scale can be expected to establish a widespread distribution in California. It receives a High (3)<\/strong><\/span> in this category.<\/p>\n

Evaluate if the pest would have suitable hosts and climate to establish in California.\u00a0 Score:<\/p>\n

– Low (1)<\/strong> Not likely to establish in California; or likely to establish in very limited areas.<\/p>\n

– Medium (2)<\/strong> may be able to establish in a larger but limited part of California.<\/p>\n

– High (3)<\/strong> likely to establish a widespread distribution in California.<\/span><\/p>\n

2) Known Pest Host Range:<\/strong> Pseudaulacaspis pentagona<\/em> is known to feed on hundreds of species of plants belonging to at least 76 families.\u00a0 Known hosts include many economically important crops.\u00a0 White peach scale receives a High (3)<\/strong><\/span> in this category.<\/p>\n

Evaluate the host range of the pest. Score:<\/p>\n

– Low (1)<\/strong> has a very limited host range.<\/p>\n

– Medium (2)<\/strong> has a moderate host range.<\/p>\n

– High (3)<\/strong> has a wide host range.<\/span><\/p>\n

3) Pest Dispersal Potential:<\/strong> Female Pseudaulacaspis pentagona<\/em> lay an average of 80-100 eggs and have 2-4 generations per year1<\/sup>.\u00a0 Scale insects can be transported long distances when infested plants or fresh plant parts are moved.\u00a0 They may also disperse locally by crawling, wind, or by hitchhiking on clothing, equipment, or animals.\u00a0 White peach scale receives a High (3)<\/strong> <\/span>in this category.<\/p>\n

Evaluate the natural and artificial dispersal potential of the pest. Score:<\/p>\n

– Low (1)<\/strong> does not have high reproductive or dispersal potential.<\/p>\n

– Medium (2)<\/strong> has either high reproductive or dispersal potential.<\/p>\n

– High (3)<\/strong> has both high reproduction and dispersal potential.<\/span><\/p>\n

4) Economic Impact:<\/strong> If Pseudaulacaspis pentagona<\/em> were to enter California it would be expected to lower the yields of many crops, especially stone fruit.\u00a0 It is likely to increase crop production costs.\u00a0 Many of California\u2019s trading partners list white peach scale as a harmful organism, indicating that trade disruptions would be likely.\u00a0 White peach scale receives a High (3)<\/strong><\/span> in this category.<\/p>\n

Evaluate the economic impact of the pest to California using the criteria below. Score:<\/p>\n

A<\/strong>. The pest could lower crop yield.<\/span><\/p>\n

B<\/strong>. The pest could lower crop value (includes increasing crop production costs).<\/span><\/p>\n

C<\/strong>. The pest could trigger the loss of markets (includes quarantines).<\/span><\/p>\n

D. The pest could negatively change normal cultural practices.<\/p>\n

E. The pest can vector, or is vectored, by another pestiferous organism.<\/p>\n

F. The organism is injurious or poisonous to agriculturally important animals.<\/p>\n

G. The organism can interfere with the delivery or supply of water for agricultural uses.<\/p>\n

– Low (1)<\/strong> causes 0 or 1 of these impacts.<\/p>\n

– Medium (2)<\/strong> causes 2 of these impacts.<\/p>\n

– High (3)<\/strong> causes 3 or more of these impacts.<\/span><\/p>\n

5) Environmental Impact:<\/strong> Pseudaulacaspis pentagona<\/em> is not expected to lower biodiversity, disrupt natural communities, or change ecosystem processes.\u00a0 It is likely to feed on multiple threatened or endangered plant species including Nevin\u2019s barberry (Berberis nevinii<\/em>), island barberry (Berberis pinnata<\/em> insularis<\/em>), and small-leaved rose (Rosa minutifolia<\/em>).\u00a0 It is not expected to disrupt critical habitats.\u00a0 White peach scale would likely trigger additional official or private treatment programs in orchards, the nursery industry, and by residents who find infested plants unacceptable.\u00a0 It is also likely to significantly impact cultural practices, home\/urban gardening, and a wide range of ornamental plantings.\u00a0 Pseudaulacaspis pentagona<\/em> receives a High (3)<\/strong> in this category.<\/p>\n

Evaluate the environmental impact of the pest on California using the criteria below.<\/p>\n

A. The pest could have a significant environmental impact such as lowering biodiversity, disrupting natural communities, or changing ecosystem processes.<\/p>\n

B<\/strong>. The pest could directly affect threatened or endangered species.<\/span><\/p>\n

C. The pest could impact threatened or endangered species by disrupting critical habitats.<\/p>\n

D<\/strong>. The pest could trigger additional official or private treatment programs.<\/span><\/p>\n

E<\/strong>. The pest significantly impacts cultural practices, home\/urban gardening or ornamental plantings.<\/span><\/p>\n

Score the pest for Environmental Impact. Score:<\/p>\n

– Low (1)<\/strong> causes none of the above to occur.<\/p>\n

– Medium (2)<\/strong> causes one of the above to occur.<\/p>\n

– High (3)<\/strong> causes two or more of the above to occur.<\/span><\/p>\n

Consequences of Introduction to California for Pseudaulacaspis pentagona<\/em> (White Peach Scale):\u00a0 High (15)<\/span><\/strong><\/h5>\n

Add up the total score and include it here.<\/p>\n

–Low<\/strong> = 5-8 points<\/p>\n

–Medium<\/strong> = 9-12 points<\/p>\n

–High<\/strong> = 13-15 points<\/span><\/p>\n

6) Post Entry Distribution and Survey Information:<\/strong> Pseudaulacaspis pentagona<\/em> has never been found in California and receives a Not established (0)<\/strong> <\/span>in this category.<\/p>\n

Evaluate the known distribution in California. Only official records identified by a taxonomic expert and supported by voucher specimens deposited in natural history collections should be considered. Pest incursions that have been eradicated, are under eradication, or have been delimited with no further detections should not be included.<\/p>\n

–Not established (0)<\/strong> Pest never detected in California, or known only from incursions.<\/span><\/p>\n

–Low (-1)<\/strong> Pest has a localized distribution in California, or is established in one suitable climate\/host area (region).<\/p>\n

–Medium (-2)<\/strong> Pest is widespread in California but not fully established in the endangered area, or pest established in two contiguous suitable climate\/host areas.<\/p>\n

–High (-3)<\/strong> Pest has fully established in the endangered area, or pest is reported in more than two contiguous or non-contiguous suitable climate\/host areas.<\/p>\n

Final Score:<\/h5>\n

The final score is the consequences of introduction score minus the post entry distribution and survey information score: High (15) <\/strong><\/p>\n

Uncertainty: <\/strong><\/h5>\n

There have not been any recent surveys of California for white peach scale.\u00a0 It is possible it could be present at some localities.<\/p>\n

Conclusion and Rating Justification: <\/strong><\/p>\n

Pseudaulacaspis pentagona<\/em> has never been found in California and is likely to have major economic and environmental impacts if it were to enter the state.\u00a0 An \u201cA\u201d rating is justified.<\/p>\n

References:<\/strong><\/h5>\n

1 <\/sup>Branscome, Deanna. 2012. Common name: white peach scale. University of Florida Featured Creatures.\u00a0 http:\/\/entnemdept.ufl.edu\/creatures\/orn\/scales\/white_peach_scale.htm<\/a><\/p>\n

2<\/sup> Miller, Dug, Yair Ben-Dov, Gary Gibson, and Nate Hardy.\u00a0 ScaleNet.<\/p>\n

http:\/\/scalenet.info\/catalogue\/Pseudaulacaspis%20pentagona\/<\/a><\/p>\n

3<\/sup> USDA Phytosanitary Certificate Issuance & Tracking System (PCIT) Phytosanitary Export Database (PExD).\u00a0 https:\/\/pcit.aphis.usda.gov\/pcit\/<\/a><\/p>\n

\n
Responsible Party:<\/strong><\/h5>\n

Jason Leathers, 1220 N Street, Sacramento, CA, 95814, (916) 654-1211, plant.health[@]cdfa.ca.gov.<\/p>\n

\n

Pest Rating: \u00a0A<\/h3>\n
\n

Posted by ls<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

California Pest Rating for Pseudaulacaspis pentagona (Targioni): White Peach Scale Hemiptera: Diaspididae Pest Rating: A PEST RATING PROFILE Initiating Event: Pseudaulacaspis pentagona is frequently intercepted by CDFA.\u00a0 A pest rating proposal is required to justify its pest rating. History & Status: Background:\u00a0 Pseudaulacaspis pentagona is a highly polyphagous armored scale insect.\u00a0 It is considered an … Continue reading White Peach Scale | Pseudaulacaspis pentagona (Targioni)<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[18,5],"tags":[175,52,407,406],"class_list":["post-2620","post","type-post","status-publish","format-standard","hentry","category-hemiptera","category-entomology","tag-hemiptera-diaspididae","tag-insects-and-mites","tag-pseudaulacaspis-pentagona","tag-white-peach-scale"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5l8vQ-Gg","jetpack-related-posts":[{"id":5888,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=5888","url_meta":{"origin":2620,"position":0},"title":"White Prunicola Scale | Pseudaulacaspis prunicola","author":"Kyle Beucke","date":"December 6, 2018","format":false,"excerpt":"California Pest Rating for Pseudaulacaspis prunicola (Maskell) | White prunicola scale Hemiptera: Diaspididae Pest Rating: A PEST RATING PROFILE Initiating Event: In 2018, this scale was found in Solano County on Ligustrum sp. bonsai that had been purchased in Fresno County.\u00a0 This scale currently has a Q-rating.\u00a0 A permanent pest\u2026","rel":"","context":"In "A-Rated"","block_context":{"text":"A-Rated","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=669"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":719,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=719","url_meta":{"origin":2620,"position":1},"title":"Pseudaulacaspis brimblecombei Williams: Waratah Scale","author":"Jason Leathers","date":"April 7, 2015","format":false,"excerpt":"California Pest Rating for Pseudaulacaspis brimblecombei Williams: Waratah Scale1 Hemiptera: Diaspididae Pest\u00a0Rating: \u00a0A PEST RATING PROFILE Initiating Event: Pseudaulacaspis brimblecombei is commonly intercepted by California\u2019s high risk programs and occasionally by dog teams.\u00a0 This armored scale insect is currently assigned a temporary rating of \u201cQ\u201d and is therefore in need\u2026","rel":"","context":"In "Hemiptera"","block_context":{"text":"Hemiptera","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=18"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2040,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=2040","url_meta":{"origin":2620,"position":2},"title":"Pseudaulacaspis cockerelli (Cooley): Magnolia White Scale","author":"Jason Leathers","date":"June 21, 2016","format":false,"excerpt":"California Pest Rating for Pseudaulacaspis cockerelli (Cooley): Magnolia White Scale Hemiptera: Diaspididae Pest\u00a0Rating: \u00a0A PEST RATING PROFILE \u00a0Initiating Event: Pseudaulacaspis cockerelli is frequently intercepted by CDFA and requires a pest rating proposal to support its pest rating. 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