Peanut IPM Update 2010


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This presentation was made at various peanut production meetings in Alabama as an annual training on pest management.

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  • There were at least two generations detected one month apart of BAW in north central AL. Three peaks could be detected one month apart in south AL along the Gulf Coast. Trends were unclear in northern AL.
  • Trends in FAW population were stronger than BAW seen before. FAW pressures were high in all parts of AL. There were at least two generations detected one month apart of FAW in north central AL. Three peaks could be detected one month apart in south AL along the Gulf Coast. Impact of weather parameters was also stronger on FAW populations than BAW.
  • SL population greater than CL in the deep south.
  • Peanut IPM Update 2010

    1. 1. PEANUT IPM UPDATE, 2010<br />Dr. Ayanava Majumdar<br />Ext. Entomologist, State SARE Coordinator<br />Gulf Coast Research & Ext. Center<br />8300 State Hwy 104, Fairhope AL 36532<br />Tel: (251) 331-8416<br /><br />
    2. 2. Topics for discussion<br />Research results<br />Insect detection and monitoring project<br />Focus on reported outbreaks in 2009<br />Updates to the Peanut IPM Guide (IPM-0360)<br />Thrips biological control research<br />IPM-CORE: providing new thrust to IPM via integrated information delivery<br />
    3. 3. Program objectives<br />Research components:<br />Efficacy of pheromone traps as a early detection tool (short-term)<br />Impact of weather on insect abundance/activity (medium-term)<br />Develop site-specific forecasting system (long-term)<br />Educational components (based on needs assessment):<br />Early warning system for growers/consultants/Agents (short-term)<br />Increase adoption of pheromone traps (medium-term)<br />Thrust to vegetable/peanut IPM via IPM-CORE (long-term)<br />Funding (2009): Extension IPM Initiative, SPRI/NPB<br />2010: Specialty Crops Block Grant, SPRI/NPB?, Ext IPM?<br />
    4. 4. Insect monitoring project<br />(new in 2009)<br /><ul><li>Use traps for early detection of pests
    5. 5. What does trap catch tell you?</li></ul>Catch = pop. density x activity<br /><ul><li> Trap network (operated by REAs): </li></ul>N-S: vegetable fields <br />E-W: peanut fields<br /><ul><li> Commercial traps/lures used
    6. 6. Trapping period: June-October
    7. 7. Trapping interval (2009): 14 days</li></li></ul><li>Why use pheromone traps?<br />Generate information that you can use WITHIN SEASON<br />Know what to scout for & when to scout INTENSIVELY<br />Automatic identification of closely related species<br />Prediction models will be avail.<br />Stink bug trap<br />Wing trap<br />Pherocon trap<br />Bucket trap<br />
    8. 8. Trap catches in 2009<br />Insect catches (June-Oct.):<br />Total = 8,586<br />High<br />Lesser cornstalk borer (LCB) = 3,586<br />Fall armyworm (FAW) = 1,386<br />Beet armyworm (BAW) = 1,377<br />Corn earworm (CEW) = 589<br />Southern armyworm (SAW) = 393<br />Tobacco budworm (TBW) = 342<br />Soybean looper (SL) = 230<br />Cabbage looper (CL) = 223<br />Corn rootworm (CRW): Southern = 253; Western = 13<br />Black cutworm (BCW) = 125<br />Stink bugs (SB, Euschistus) = 0*<br />Low<br />* Trap damaged at many locations<br />** Traps added late (July-Oct.)<br />
    9. 9. What is it?<br />HINT: Several outbreaks of these insects occurred in AL, 2009<br />
    10. 10. Outbreak of armyworms in soybean, peanuts (2009)<br />
    11. 11. Beet armyworm<br />Insect density (overall) per site<br />4<br />Monthly average activity (statewide)<br />10<br />27<br />21<br />19<br />33<br />25<br />25<br />8<br />49<br />36<br />Year 2009<br />
    12. 12. Fall armyworm <br />Insect density (overall) per site<br />20<br />17<br />Monthly average activity (statewide)<br />19<br />29<br />15<br />27<br />32<br />16<br />12<br />13<br />48<br />36<br />Year 2009<br />
    13. 13. What is it?<br />Microspines<br />
    14. 14. Corn earworm<br />Insect density (overall) per site<br />6<br /> 3<br />17<br />Monthly average activity (statewide)<br />10<br />8<br />25<br />3<br /> 7<br />12<br />5<br />8<br />16<br />11<br />Year 2009<br />
    15. 15. What is it?<br />Microspines<br />
    16. 16. Tobacco budworm <br />Insect density (overall) per site<br />3<br />3<br />Monthly average activity (statewide)<br />2<br />1<br />7<br />6<br />20<br /> 3<br /> 6<br />15<br /> 3<br />Year 2009<br />
    17. 17. What is it?<br />Hint: larvae live in silken tunnels/tubes; some outbreaks (?) reported in 2009<br />
    18. 18. Why early detection of pests is useful?<br />Lesser cornstalk borer in many crops (Clarke, Washington, Escambia Co., Henry Counties)<br />
    19. 19. Lesser cornstalk borer<br />Insect density (overall) per site<br />Monthly average activity (statewide)<br />142<br />119<br />76<br />46<br />77<br />116<br />143<br />Year 2009<br />
    20. 20. What is it?<br />
    21. 21. Cabbage looper<br />5<br />Monthly average activity (statewide)<br />3<br />3<br />10<br />2<br />3<br />12<br />9<br />
    22. 22. What is it?<br />
    23. 23. Soybean looper<br />Monthly average activity (statewide)<br />2<br />6<br />1<br />2<br />15<br />14<br />
    24. 24. Corn rootworm<br />4<br />June<br />WCRW<br />SCRW<br />28<br />3 WCRW<br />8<br />1 WCRW<br />12<br />June, July<br />2<br />7<br />June<br /> 1<br />4<br />Source: K. Flanders (2010)<br />1<br />June<br />Year 2009<br />
    25. 25. Impact of Weather on Trap Catches<br />Sign. Correlation of TEMPERATURE :<br />Year 2009<br />RAINFALL<br />Sign. Correlation of RAIN DAYS :<br />Numbers indicate significant correlations at P = 0.10. +/- indicates direction of relationship (preliminary findings). Rain days indicate number of days rainfall exceeded 0.1 inch.<br />
    26. 26. Discussion<br /><ul><li> Counties along the Gulf Coast had highest insect numbers
    27. 27. Unusually high trap catches: FAW, BAW, LCB
    28. 28. Outbreak reports (2009): FAW, BAW, LCB, CRW
    29. 29. Outbreaks consistent with high trap catches
    30. 30. Appropriate weather could trigger outbreaks</li></li></ul><li>Thrips biocontrol research<br />Tobacco thrips<br />Western flower thrips<br />Goals:<br />Monitor thrips infestation levels<br />Encourage registration of biological insecticides<br />Stimulate research for granular i-cide formulations <br />
    31. 31. Thrips biological control study<br /><ul><li>Locations: Fairhope (22 May), Headland (8 June)
    32. 32. Peanut variety: Georgia green
    33. 33. Insecticides tested:
    34. 34. Temik (aldicarb) @ 0.5 lb AI/acre
    35. 35. Thimet (phorate) @ 0.38 lb AI/acre
    36. 36. BotaniGard ES (Beauveria bassiana) @ 1-2 quart/acre
    37. 37. QRD452 (Chenopodium) @ 1-2 quart/acre
    38. 38. Radiant (spinetoram) @ 4-8 oz/acre
    39. 39. Thrips sampling: foliar sampling 7 DAT using bags
    40. 40. Virus hits recorded twice in July</li></li></ul><li>Thrips biocontrol study: abbreviated results<br />Radiant is a promising insecticide as stand-alone or as rotation partner.<br />
    41. 41. Thrips biocontrol test, Fairhope <br />TSWV vs. healthy peanut plant<br />
    42. 42. Thrips biocontrol test, Fairhope <br />3<br />5<br />6<br />7<br />2<br />4<br />1<br />Untr. check: 40 thrips/plot, 2-7 virus hits per 60 ft row <br />
    43. 43. Thrips biocontrol test, Fairhope <br />1<br />Spinetoram(split applications) + phorate (both ½ rates) <br />6 thrips/plot…no benefit if applied at full rate<br />Fast knockdown product…less virus hits<br />
    44. 44. Thrips biocontrol test, Fairhope <br />2<br />1<br />Beauveria(split appl.)+ phorate (both ½ rates)<br />35 thrips/plot…reduces by ½ if 2x rate is applied<br />Slow product…virus hits increase<br />
    45. 45. Thrips biocontrol test, Fairhope <br />2<br />1<br />QRD 400 (split appl.) + phorate (both ½ rates)<br />29 thrips/plot…reduces by ½ if 2x rate is applied<br />Slow product…virus hits increase<br />
    46. 46. What is it?<br />Three-cornered alfalfa hopper<br />Outbreaks in Clarke, Washington, Baldwin, Mobile Co. (2009)<br />
    47. 47. Burrower bugs<br />Six species in peanuts, Pangaeusbilineatus most prevalent, sporadic late-season pest<br />Host range: peanut, cotton, strawberry, spinach, wild plants<br />Identification: small insects, note wing structure & spines on legs<br />Overwintering stage: adult, under rocks, crop stubble, volunteer plants<br />Management:<br />Problem in high residue fields<br />Increasing problem as pods fill (late season)<br />Use pitfall traps to determine activity<br />Chlorpyrifos is the only recommended i-cide<br />Hemiptera: Cydnidae<br />
    48. 48. What is it?<br />Velvetbean caterpillar<br />Outbreaks in pockets in many Baldwin and Mobile Co. (2009)<br />
    49. 49. IPM COmmunicationREsources<br />(IPM-CORE) Project<br />Concept: Synchronized rapid IPM information delivery to growers<br /><ul><li>Project archive: or
    50. 50. AU Pest Alert (direct email): July-October
    51. 51. Web outreach: Blogs, YouTube,, AGFAX.COM
    52. 52. Sign-up sheet for Pest Alert available today
    53. 53. IPM Hotline (messages): 1-800-446-0375
    54. 54. Mobile exhibit at grower meetings, tradeshows
    55. 55. Timely revisions to
    56. 56. Peanut IPM Guide
    57. 57. Ext. bulletins (peanuts, vegetables)</li></li></ul><li>IPM-CORE: a rapid information delivery system<br /> New Integrated Peanut Entomology Website:<br />SUBSCRIBE TO THIS FOR AUTOMATIC EMAIL UPDATES<br />IPM4Peanuts: YOUTUBE channel for AL peanut producers<br />
    58. 58. IPM Trapping Coordinators: <br />A. Majumdar<br />H. Fadamiro<br />K. Flanders<br />IPM Team Members:<br />Lloyd Chapman<br />Neil Kelly<br />Michael Reeves<br />Gary Gray<br />James Miles<br />William East, Jr.<br />Brandon Dillard<br />Leonard Kuykendall<br />Chris Becker<br />Timothy Reed<br />Acknowledgements<br />Thank you very much.<br />Please fill the survey.<br />Signup for email alerts.<br />