Revising the Aster Yellows Index and Management in Wisconsin

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Aster yellows management WI AY management heavily influenced by R. K. Chapman Characterized ALH migratory behavior and recognized its importance for producing year-to-year variation in AY pressure Developed a strategy to account for that variation and manage AY Chapman & Wyman and Longridge sweeping in Arkansas (circa 1985)
Aster yellows management: controlling the ALH ‣ AYI calculated as: % leafhopper infectivity * number / 100 sweeps ‣ AY control is achieved through repetitive applications of insecticide • - Synthetic pyrethroids - currently the backbone of AY control programs ($7-9/ac) Do we have all the tools that we need to manage this disease Can we modernize and improve our current management strategies
Page 1 and 2: Revising the Aster Yellows Index an
Page 3 and 4: Factors Influencing Insect Pest Man
Page 5 and 6: Presentation Outline Goal - Sustain
Page 7 and 8: Aster yellows phytoplasma (AYp), Ca
Page 9: Aster leafhopper migratory behavior
Page 13 and 14: Presentation Outline Goal - Sustain
Page 15 and 16: Evaluating variability associated w
Page 17 and 18: Detection of seasonal trends in AY
Page 19 and 20: Seasonal trends: ALH infectivity Us
Page 21 and 22: Concurrence of AY “risk windows
Page 23 and 24: Next Steps - 2011: Using informatio
Page 25 and 26: Reduced Risk In-Furrow and Seed Tre
Page 27 and 28: Novel, Reduced-Risk, Carrot Seed Tr
Page 29 and 30: Overall summary: refining the AYI A
Page 31: QUESTIONS

Revising the Aster Yellows Index and Management in Wisconsin

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