Forest Pathology from Nursery to Harvest Anna Leon, PhD Forest - - PowerPoint PPT Presentation

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Feb 16, 2023 15 likes •206 views

Forest Pathology from Nursery to Harvest Anna Leon, PhD Forest Health in Oregon: State of the State 2018 February 28, 2018 Stages of an Industry Tree 2 | 3/6/2018 What is an Industry Forest Pathologist? 3 | 3/6/2018 Orchards Photos: J.

SLIDE 1

Forest Pathology from Nursery to Harvest

Anna Leon, PhD Forest Health in Oregon: State of the State 2018 February 28, 2018

SLIDE 2

2 | 3/6/2018

Stages of an Industry Tree

SLIDE 3

3 | 3/6/2018

What is an Industry Forest Pathologist?

SLIDE 4

4 | 3/6/2018

Orchards

Photos: J. Browning

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5 | 3/6/2018

Orchard Problems

Photo: J. Brooks Photo: D. Manastyrski

Douglas-fir Cone Moth – Barbara colfaxiana

Photo: J. Powell Photo: W. Strong

Douglas-fir Cone Worm – Dioryctria spp.

Photo: D. Manastyrski

Seed imaging helps prevent seed abortion Stress related cankers

SLIDE 6

6 | 3/6/2018

Nurseries

SLIDE 7

7 | 3/6/2018

Nursery Diseases and Research

Common

Problems

– Root rots – Nutritional issues – Insects

Collaborative

Research Projects

– Fumigation – Solarization – Other small projects

Photos: W. Littke

SLIDE 8

8 | 3/6/2018

Fallow field pre-fumigation mid-July Soil core taken from 12” depth separated (0-6” and 6-12”) Soil diluted with 0.1% sterile water agar

Nursery Technical Service

Photos: W. Littke

SLIDE 9

9 | 3/6/2018

Lab Diagnostics

Photos: W. Littke

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10 | 3/6/2018

Young Plantation

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11 | 3/6/2018

Young Plantation Problems

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12 | 3/6/2018

Mid-Late Rotation

SLIDE 13

13 | 3/6/2018

Economically Damaging Pests

Photos: Douglas-fir bark beetle: Steven Valley, Oregon Department of Agriculture; Swiss Needle Cast: Robin Mulvey; Sudden Oak Death Yana Valachovic, UCCE Humboldt County

SLIDE 14

14 | 3/6/2018

Risk Awareness
Risk Protection
Risk Management

Southern Pine Beetle Program: See USFS site for photo credits https://www.fs.usda.gov/detail/r8/forest-grasslandhealth/insects-diseases/?cid=fseprd561234

Recently thinned, well managed stand Stand damaged by Southern Pine Beetle Stand ready for thinning

Plantation Management

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15 | 3/6/2018

Log Sanitation

Photos: W. Littke

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16 | 3/6/2018

Logs/wood products

Photos: Will Littke, John Browning

Harvest Surface Stains and Molds Decking in Woods, Mill, or Port Insects Mold Spores

Ambrosia Bore Hole Photo: W.H. Bennett, USDA Forest Service, Bugwood.org

Ambrosia Beetle Stained Wood

SLIDE 17

17 | 3/6/2018

Managing for an Uncertain Future

Kolb et al., 2016 Douglas-fir with sudden oak death: John Bienapfl, University

f California, Davis

SLIDE 18

18 | 3/6/2018

All Stages Are Equally Important

SLIDE 19

19 | 3/6/2018

Thank You

Photos: Weyerhaeuser