Tree Rusts

Forest Health

Forest Health UpdateImportance of Silviculture surveyorsReview of top pests of young standsPossible stocking standard revisionsStem rusts Quesnel survey dataSouth Chilcotin Planning Area Possible Dwarf Mistletoe ImpactsElytroderma Needle Cast New Management BulletinForest Health Strategies

Silviculture Surveyors & Forest HealthGatekeepers of FH data and provide most FH recommendations in the provinceRESULTS data has huge potential as a forest health data base (provided data is reliable)Hazard Rating/Silviculture PlanningOnly 2 reasons for an area to be NSRNot enough trees to start withForest Health FactorFH knowledge large part of doing an effective job!

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4Top Pests in Williams Lake TSA (based on 79 FREP stand development monitoring blocks)1) Gall Rust 3.1%2) Snow Press 2.1%3) Elytroderma Needle Cast 2.1%4) Forking 1.1%5) Unknown Mortality 1.0%6) Mountain Pine Beetle 0.9%7) Dwarf Mistletoe 0.8%

Forest Health in WLTSAHighest Incidence of FH by BECMean Percent IncidenceBECnElytroderma needle disease

DFEDwarfMistletoe

DMPWestern gall rust

DSGMountain pine beetle

IBMFork

UKSnow press

NYUnknown

NKESSF8--1.00.40.43.60.5ICH170.05-0.30.30.76.01.2IDF188.02.13.41.00.50.25.6MS80.1-4.7-3.60.09-SBPS321.51.33.90.11.40.30.7SBS10--5.25.20.34.42.1Total932.10.83.10.91.12.11.077Possible revisions to stocking standards a move away from Pli as a preferred species in the ESSF and ICH (high risk for snowpress) and higher densities of Pli in the SBS to account for rusts and other pests. Higher densities of pine will likely necessitate more reliance on natural regen and less use of lodgepole pine where it wasnt present previously and may result in better root formPINE STEM RUSTSWestern Gall RustComandra RustStalactiform Rust Western Gall Rust

Western gall rustHighest incidence pestInfection of elongating leader (can age infections) wave yearsGirdling (