• Comandra Blister Rust

      Olsen, Mary W.; Young, Deborah; Plant Pathology (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2009-05)
      Mondell pine should not be planted within a mile of Comandra populations. Infection of pine occurs through needles by spores produced on Comandra, but spores produced on pine cannot re-infect pine. This article gives information about the disease cycle, the symptoms and prevention and control methods for blister rust.
    • Dwarf Mistletoes

      Olsen, Mary W.; Young, Deborah; Plant Pathology (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2011-01)
      Dwarf mistletoes are parasitic flowering plants that grow within host plants for about two years before producing characteristic yellow to orange or green to brown leafless aerial shoots on the outside of infected host tissue. They occur only on conifers in the pine family in Arizona and are usually host specific. This article gives information about the disease cycle, the symptoms and prevention and control methods for dwarf mistletoes.
    • True Mistletoes

      Olsen, Mary W.; Young, Deborah; Plant Pathology (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2011-01)
      True mistletoes are parasitic flowering plants with characteristic clumps of growth that are easily visible on the host plant. They reduce the growth of infected hosts, but it usually takes many years for true mistletoe infections to kill a mature tree or shrub. This article gives information about the disease cycle, the symptoms and prevention and control methods for true mistletoes.