Mistletoe Rating Diagram.docx
DOCX document 77 KB Posted
- Attached to
- RECOVERY - Hazardous fuels mitigation, Carson National Forest. Federal contract opportunity
- Solicitation number
- AG-9702-S-10-0435
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Mistletoe Rating Diagram
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ATTACHMENT 3
· Mistletoe Rating Diagram
The following procedure which uses Hawksworth's 6 class rating system will be used to rate dwarf mistletoe infections:
Step 1: Divide the crown into thirds
Step 2: Score each third
No Infection = 0
Light Infection = 1
Heavy infection = 2
| Light Infection - | one-half or less of the total number of branches in the third infected. | |
| No prominent witches' | brooms. |
| Heavy Infection - | more than one-half of the total number of branches in the third infected or |
| one or more witches'brooms. |
Step 3: Add the 3 scores together to determine the mistletoe rating for that tree.
Example:
| / | \ | - 0 |
| / | \ |
/ o \ - 1
| / | \ | |
| / o o | \ | - 2 |
/ o \
0 + 1 + 2 = 3
The mistletoe rating for this tree is 3.
File details come from the government source that posted it. Updated .