Urban Tree Threat Response Guide for Insect, Disease and Environmental Threats to Urban Trees in Arizona and New Mexico
The Guide provides detailed information about 50 insects, diseases and other threat species that weaken or kill urban trees. Many of these are currently present in Arizona and/or New Mexico. Others could make their way here in coming years. Five environmental/cultural factors that affect urban tree health are also addressed. The 104-page Guide can be viewed on screen or downloaded. The format enables it to be shown as a computer-projected presentation.
Species and conditions addressed in the GUIDE:
Insect threats
•Asian citrus psyllid (Diaphorina citri)
•Asian longhorned beetle (Anoplophora glabripennis)
•Cedar and cypress bark beetles (Phloeosinus spp.)
•Coconut rhinoceros beetle (Oryctes rhinoceros)
•Cottonwood borer (Plectrodera scalator)
•Douglas-fir beetle (Dendroctonus pseudotsugae)
•Emerald ash borer (Agrilus planipennis)
•Fir engraver (Scolytus ventralis)
•Goldspotted oak borer (Agrilus auroguttatus)
•Mediterranean pine engraver (Orthotomicus erosus)
•Oystershell scale (Lepidosaphes ulmi)
•Palo verde borer (Derobrachus hovorei)
•Peach tree borer (Synanthedon exitiosa)
•Pine beetles (Dendroctonus spp.) including Mexican pine beetle (Dendroctonus mexicanus), Mountain pine beetle (Dendroctonus ponderosae), Roundheaded pine beetle (Dendroctonus adjunctus), Southern pine beetle (Dendroctonus frontalis) and Southwestern pine beetle (Dendroctonus barberi)
•Pine needle scale (Chionaspis pinifoliae)
•Pinyon ips beetle (Ips confusus)
•Pinyon needle scale (Matsucoccus acalyptus)
•Shothole borers (Euwallacea spp.) including Polyphagous shothole borer (Euwallacea fornicates) and Kuroshio shothole borer (Euwallacea kuroshio)
•Sirex woodwasp (Sirex noctilio)
•Spongy moths including European spongy moth (Lymantria dispar dispar) and Asiatic spongy moth (Lymantria dispar asiatica)
•Spotted lanternfly (Lycorma delicatula)
•Spruce aphid (Elatobium abietinum)
•Spruce beetle (Dendroctonus rufipennis)
•Twig beetles (Pityophthorus spp., Pityogenes spp., Pityoborus secundus)
•Western spruce budworm (Choristoneura spp.)
•Western tent caterpillar (Malacosoma californicum)
Fungal threats
•Armillaria root disease (Armillaria spp.)
•Elytroderma needle cast (Elytroderma deformans)
•Ganoderma rot disease (Ganoderma spp.)
•Lophodermella needle cast (Lophodermella cerina, Lophodermella arcuata)
•Oak wilt (Ceratocystis fagacearum)
•Phytophthora root diseases (Phytophthora spp.)
•Powdery mildew (Podosphaera leucotricha)
•Sooty bark canker (Encoelia pruinosa)
•Sooty canker (Nattrassia mangiferae)
•Sooty mold, multiple species
•Texas root rot (Phymatrotrichopsis omnivora)
•Thousand cankers disease (Geosmithia morbida)
•Verticillium wilt (Verticillium dahliae)
•White pine blister rust (Cronartium ribicola)
Other threats
•Aleppo pine blight, primarily abiotic stress
•Ash decline (Phytoplasma), also abiotic stress in ash
•Dwarf mistletoe (Arceuthobium spp.)
•True mistletoe (Phoradendron spp.)
•Fire blight (Erwinia amylovora) bacterium
Environmental/cultural factors affecting urban trees
•Tree injuries
•Tree planting issues
•Water supply issues
•Tree selection and placement issues
•Pruning issues
Insect threats
•Asian citrus psyllid (Diaphorina citri)
•Asian longhorned beetle (Anoplophora glabripennis)
•Cedar and cypress bark beetles (Phloeosinus spp.)
•Coconut rhinoceros beetle (Oryctes rhinoceros)
•Cottonwood borer (Plectrodera scalator)
•Douglas-fir beetle (Dendroctonus pseudotsugae)
•Emerald ash borer (Agrilus planipennis)
•Fir engraver (Scolytus ventralis)
•Goldspotted oak borer (Agrilus auroguttatus)
•Mediterranean pine engraver (Orthotomicus erosus)
•Oystershell scale (Lepidosaphes ulmi)
•Palo verde borer (Derobrachus hovorei)
•Peach tree borer (Synanthedon exitiosa)
•Pine beetles (Dendroctonus spp.) including Mexican pine beetle (Dendroctonus mexicanus), Mountain pine beetle (Dendroctonus ponderosae), Roundheaded pine beetle (Dendroctonus adjunctus), Southern pine beetle (Dendroctonus frontalis) and Southwestern pine beetle (Dendroctonus barberi)
•Pine needle scale (Chionaspis pinifoliae)
•Pinyon ips beetle (Ips confusus)
•Pinyon needle scale (Matsucoccus acalyptus)
•Shothole borers (Euwallacea spp.) including Polyphagous shothole borer (Euwallacea fornicates) and Kuroshio shothole borer (Euwallacea kuroshio)
•Sirex woodwasp (Sirex noctilio)
•Spongy moths including European spongy moth (Lymantria dispar dispar) and Asiatic spongy moth (Lymantria dispar asiatica)
•Spotted lanternfly (Lycorma delicatula)
•Spruce aphid (Elatobium abietinum)
•Spruce beetle (Dendroctonus rufipennis)
•Twig beetles (Pityophthorus spp., Pityogenes spp., Pityoborus secundus)
•Western spruce budworm (Choristoneura spp.)
•Western tent caterpillar (Malacosoma californicum)
Fungal threats
•Armillaria root disease (Armillaria spp.)
•Elytroderma needle cast (Elytroderma deformans)
•Ganoderma rot disease (Ganoderma spp.)
•Lophodermella needle cast (Lophodermella cerina, Lophodermella arcuata)
•Oak wilt (Ceratocystis fagacearum)
•Phytophthora root diseases (Phytophthora spp.)
•Powdery mildew (Podosphaera leucotricha)
•Sooty bark canker (Encoelia pruinosa)
•Sooty canker (Nattrassia mangiferae)
•Sooty mold, multiple species
•Texas root rot (Phymatrotrichopsis omnivora)
•Thousand cankers disease (Geosmithia morbida)
•Verticillium wilt (Verticillium dahliae)
•White pine blister rust (Cronartium ribicola)
Other threats
•Aleppo pine blight, primarily abiotic stress
•Ash decline (Phytoplasma), also abiotic stress in ash
•Dwarf mistletoe (Arceuthobium spp.)
•True mistletoe (Phoradendron spp.)
•Fire blight (Erwinia amylovora) bacterium
Environmental/cultural factors affecting urban trees
•Tree injuries
•Tree planting issues
•Water supply issues
•Tree selection and placement issues
•Pruning issues