Landscape & Garden Alerts

Pear Blister Mite

Tree Fruits    All Locations

Eriophyes pyri

Posted on: May 9, 2018 by Rich Guggenheim

Pear leaf blister mite, Eriophyes (=Phytoptus) pyri , is an eriophyid mite found on pear, and apple. Young trees can be damaged by severe infestations.
CONTROL:
Treat large infestations in early fall, before leaf drop, when mites are migrating from leaves to buds. Options include carbaryl, horticultural oil, or lime sulfur. Dormant oil applications in spring are also effective. Blister mites cannot be treated in summer.

» http://ipm.ucanr.edu/PMG/r603400511.html

» http://oregonstate.edu/dept/nurspest/pear_leaf_blister_mite.htm

» https://utahpests.usu.edu/ipm/agricultural/fruit/blister-mites

» http://jenny.tfrec.wsu.edu/opm/displaySpecies.php?pn=330

Peach Leaf Curl

Tree Fruits    All Locations

Peach Leaf Curl

Posted on: May 7, 2018 by Rich Guggenheim

Taphrina deformans

Peach leaf curl is affecting peach leaves now. Proper timing of fungicides, in the fall, can prevent this disease aLime sulfur or Ziram work great for commercial growers. Home grown trees will need something but avoid Monterey Liqui-Cop as it did not work. Ortho MAX Garden Disease Control was a little better than nothing. Bottom line for home growing - replace with a resistant tree after the current ones dies.

» https://pnwhandbooks.org/plantdisease/host-disease/peach-prunus-persica-leaf-curl

» http://ipm.ucanr.edu/PMG/PESTNOTES/pn7426.html

» https://extension.usu.edu/files/publications/factsheet/peach-leafcurl.pdf

» http://extension.oregonstate.edu/gardening/node/924

» http://ipm.ucanr.edu/PMG/PESTNOTES/pn7426.html

» https://digitalcommons.usu.edu/cgi/viewcontent.cgi?referer=https://www.google.com/&httpsredir=1&article=1736&context=extension_curall

Peach Tree Borer

Tree Fruits    All Locations

Synanthedon exitiosa

Posted on: May 4, 2018 by Rich Guggenheim

Peach tree borer are in the clear wing moth category. They usually attack prunus trees near the ground. Signs of infestation include gumosis oozing from the trunk near the soil.
Peachtree borer eggs are laid during the summer on the bark at the base of trees. Larvae overwinter in the tree trunk near the soil line. They feed in the crown area and burrow up into the tree

» https://pestadvisories.usu.edu/2017/04/18/gummosis/

» http://extension.colostate.edu/topic-areas/agriculture/cytospora-canker-in-tree-fruit-crops-2-953/

» https://plantpathology.ca.uky.edu/files/ppfs-fr-t-08.pdf

» http://ipm.ucanr.edu/PMG/r5301011.html