200 likes | 352 Vues
Fengyou Jia, Ph. D. Research Assistant Professor Department of Entomology Kansas State University Manhattan, KS 66506. Academic backgrounds. Received extensive training Forest entomology and pathology, and Forest related principles throughout graduate and undergraduate studies
E N D
Fengyou Jia, Ph. D. Research Assistant Professor Department of Entomology Kansas State University Manhattan, KS 66506
Academic backgrounds • Received extensive training Forest entomology and pathology, and Forest related principles throughout graduate and undergraduate studies • Served as Forest Entomologist over 10 years (1984-1994) at the Chinese Academy of Forestry • Received additional training in computer science and advanced entomology, and developed management expertise throughout post-doctorate training and research/extension positions.
Primary forest pests in Colorado Bark beetles (e.g., Mountain pine beetle, Douglas-fir beetle, Ips engraver beetle) Stem and wood boring insects (e. g., Pine sawyer, Black horned pine beetle, Flatheaded woodborer) Shoot and twig borers (e. g., White pine weevil) Foliage feeding insects (e. g., Western spruce budworm, Douglas-fir tussock moth, Tiger moth, Western tent caterpillar) Sucking insects (e. g., aphids, scales, mealybugs, psyllids, spittlebugs). Gall insects (e. g., Cooley spruce gall aphid, Piñon spindle gall)
Primary host trees in Colorado • Douglas-fir • Mountain pine • Spruce • Lodgepole pine, • Limber pine • Piñon pines • Elms • Eastern white pine • True fir • Ponderosa pine • …
If I have the opportunity to workas the Forest Entomologistat Colorado
Forest Insect Management Network(FIMN, online) • Collaborate with other forest entomologists and forest service professionals to develop a FIMN for Colorado State University • FIMN (online application)
FIMN Functions • To support state-wide • Forest insect prediction/detection • Forest insect avoidance/prevention • Forest insect control
To illustrate the FIMN: Mountain pine beetle (MPB) (Dendroctonus ponderosae) (Family: Scolytidae, Coleoptera) • One-year life cycle in Colorado. • Larvae overwinter under barks. • 3. Majority of adults exit trees during late July • (lodgepole pine) and mid-August (ponderosa pine). Images: http://www.ext.colostate.edu/pubs/insect/05528.html
MPB host Trees Including: • Ponderosa pine • Lodgepole pine • Limber pine Facts 2001: 450,000 trees killed 2002: 350,000 trees killed
Mountain pine beetle damage on Ponderosa trees Sources:http://www.colostate.edu/Depts/CoopExt/LARIMER/plantinsectid/Mountain%20pine%20beetle.pdf
Extremely high cost Relatively low cost Low cost When epidemics Management Practices are limited Felling the infested tree blocks Felling the infested tree Early detection is Critical in MPB management! http://www.pfc.forestry.ca http://www.cpluhna.nau.edu/Biota/ponderosa_forest.htm
FIMN Online Application (Flow chart) Pest Images & Damage Symptoms & Behavioral Features Diagnosis Select tree species of interest Select potential pests Detection/ Prediction Aerial and Ground surveys Ponderosa MPB Thinning Avoidance/ Prevention Felling & Burning Control Practices Preventive sprays • Pesticides registered for MPB control (e. g., Carbaryl) • Application time and methods (late July or early Aug.) • Expert contact information (Dr. David Leatherman) • Links to other related information (Return)
Online Report System Allow the landowners online to report any abnormality about their forest Number of trees appear this symptom Contact information Tree Species e. g., Spruce e. g., 15 e. g., Mr. Collins Tel: 111-222-3333 Abnormality Description e. g., leaf color change or any damage sign…
1. Thanks to all forest entomologists in Colorado for their long-term efforts, we now have the basic information available to develop such a network.
MPB Detection/ Prediction • Detection • Aerial and ground surveys • (Where, when, and how?) • Prediction • Historical data • Forest conditions • Age (e. g., Mountain pine beetle rarely attacks young/small trees) • Health conditions (dense) • Sanitation (wildfire mitigation reminds) • Weather conditions • Drought conditions • Precipitations (rain and snow)
MPB Avoidance/Prevention • Silviculture: selecting health plantings • Thinning/spacing • Preventive sprays of chemicals • Chipping, burning, and disposing infested trees
MPB Controls • Direct approaches • Harvesting the individual trees • pheromones used to trap the beetles • Felling and burning • Debarking • Treatments with chemicals • Indirect approaches • Spacing mature pine stands • Maintain vigor in pine stands • Silviculture practices
Forest Insect management information for MPB can be obtained by the landowners using such network Must be available in a user-oriented fashion (make it easy for the users to get the information they need!)
Ultimate goals • To prevent any forest resource loss due to forest pests (insects). • To protect wood resources, wild-life habitats, recreation resources, and landscapes for landowners.
Enjoy the beauty in Colorado! Maroon Bells, ColoradoBy photographer Andy Cook