Revising the Aster Yellows Index and Management in Wisconsin
Revising the Aster Yellows Index and Management in Wisconsin Revising the Aster Yellows Index and Management in Wisconsin
Aster Leafhopper Management AYI Thresholds ‣ Estimated AYI values exceed established crop resistance levels: Carrots (resistant = 100, intermediate = 75, susceptible = 50) Celery = 35 Lettuce = 25 Need to protect carrot crop from ALH for 8-10 weeks Foliar Pyrethroids ($36-40 / A) Planting Aster leafhopper Carrot Crop Harvest 15-Mar 14-Apr 14-May 13-Jun 13-Jul 12-Aug 11-Sep 11-Oct
Presentation Outline Goal - Sustainable Carrot IPM ‣ Define Aster Yellows disease and the insect vector ‣ Identify periods of ‘elevated risk’ for disease transmission. ‣ New approaches to achieve sustainable, reduced-risk, IPM in carrot. Seed Treatments
- 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 and 10: Aster leafhopper migratory behavior
- Page 11: Aster yellows management: controlli
- 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
Presentation Outl<strong>in</strong>e<br />
Goal - Susta<strong>in</strong>able Carrot IPM<br />
‣ Def<strong>in</strong>e <strong>Aster</strong> <strong>Yellows</strong> disease <strong>and</strong> <strong>the</strong> <strong>in</strong>sect<br />
vector<br />
‣ Identify periods of ‘elevated risk’ for disease<br />
transmission.<br />
‣ New approaches to achieve susta<strong>in</strong>able,<br />
reduced-risk, IPM <strong>in</strong> carrot.<br />
Seed Treatments
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