ForesTree - A Guide to Tree Health

Pest and Disease Information

Limber Pine
  • Pinus flexilis - Resistant to Texas Root Rot and Verticillium. Susceptible to Aphids, Oak Root Rot, Root Rot and White Pine Blister Rust. Additional and expanded information listed below.

  • For further tree information:
       SelecTree (1048) | Silvics of North America
5 Records Found
Disease or Pest NameDescription of Disease or Pest

Oak root fungus
Armillaria mellea

Armillaria_melleaArmillaria cases reduced terminal growth and general decline in affected plants, As the Armillaria advances dieback of twigs and branches (most apparent in hardwoods) can occur. Crown symptoms include chl...

Phytophthora Root and Crown Rot
Phytophthora cactorum

phytophthora_cactorumThis disease, as its name implies, is characterized by red-brown exudate oozing from bark fissures in cankers on lower parts of the mainstem of the tree. Wood behind the wet areas is dead and stained reddi...

Pitch Canker
Fusarium circinatum

radiataPitch canker causes cankers/necrotic areas of bark on the main stem and lateral branches of affected trees. Pitch may stream from cankers. The cankers cause top kill and branch dieback. Flagging of branch...

White Pine Blister Rust
Cronartium ribicola

Cronartium_ribicolaWhite pine blister rust forms cankers on the trunk and branches of white pines (five-needled pines). These are perennial and can eventually girdle the trunk or branch. Flagging of branch tips from death ...

Mountian Pine Beetle
Dendroctonus ponderosae

Dendroctonus_ponderosaeThe mountain pine beetle often kills trees in small groups. Many times these trees are weakened by fire, drought, dwarf mistletoe, rust, or smog. Generally only trees over 10 inches in diameter will be a...