Exhibit_9_-_Mistletoe.pdf

Exhibit 9: Dwarf Mistletoe Guide

Severity rating for dwarf mistletoe is coded 1 through 6 according to the following system:

INSTRUCTIONS Example:

STEP 1. Divide live crown into thirds

STEP 2. Rate each third separately. Each third should be given a rating of 0, 1 or 2 as described below.

(0) No visible infections

(1) Light infection (1/2 or less of the total number of branches in the crown third are infected)

(2) Heavy infection (more than 1/2 of total number of branches in the crown third are infected).

STEP 3. Finally, add ratings of thirds to obtain rating for total tree.

The dwarf mistletoe rating for the above tree is 3 (top (0) + middle (1) + bottom (2))

Photographs

Mistletoe on branch Witches’ brooms Mistletoe stem canker

Category – Agent – Species – Host .

(23-005) WHITE FIR DWARF MISTLETOE (Arceuthobium abietinum f. sp. concoloris)

Host: white fir and grand fir

(23-006) LODGEPOLE PINE DWARF MISTLETOE (Arceuthobium americanum)

Host: lodgepole pine

(23-008) WESTERN DWARF MISTLETOE (Arceuthobium campylopodum) Host: ponderosa pine, Jeffery pine, knobcone pine, and Coulter pine

(23-011) DOUGLAS-FIR DWARF MISTLETOE (Arceuthobium douglasii)

Host: Douglas-fir

(23-021) RED FIR DWARF MISTLETOE (Arceuthobium abietinum f. sp. magnificae)

Host: California red fir and Shasta red fir

(23-020) TRUE MISTLETOE (Phoradendron spp.)

Host: Incense cedar, juniper, and oak

Top 1/3rd has no visible infection, rating is 0

Middle 1/3rd is lightly infected, rating is 1

Bottom 1/3rd is heavily infected, rating is 2