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Peanut insect pests
 

Peanut insect pests

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Peanut insect pests Peanut insect pests Presentation Transcript

  • Dr. Ayanava Majumdar Ext. Entomologist, State SARE Coordinator Gulf Coast Research & Ext. Center 8300 State Hwy 104, Fairhope AL 36532 Tel: (251) 331-8416 [email_address]
    • Take the Pre-test
    • IPM Insect Monitoring project
      • Insect ID, peak activity, weather impact
      • Pest outbreaks 2009
    • Insect biocontrol project on thrips
      • Move toward soil insect pest management
    • Extension resources
    • Take the Post-test after talk
    • Funded by EIPM, SPRI grants
    • Res. objectives: to determine insect species distribution, first occurrence & peak activity, weather effect on activity… forecast pest outbreaks??
    • Ext. objectives: establish a Pest Advisory system (rapid communication), to demonstrate advantages of traps to clientele, motivate technology adoption
    • 14 ACES personnel
    • Insect traps N-S (veg.) & E-W (peanut)
    • Pheromone traps: commercial types
    • Trapping period: June-October
    • Outcomes: identified 8500+ specimens, 500+ traps bottoms
    • IPM-CORE for outreach
  • HINT: Several outbreaks of this insect occurred in soybean, peanuts, cotton, and forage crops.
  • 4 (4) 10 (3) 21 (4) 33 (5) 49 (5) 25 (5) 8 (5) 19 (6) 36 (6) Late-Aug., Sept Late-July Late-July, Aug., Sept. 27 (6) Inconsistent trend Weather impact: Temp: - Rainfall: ?? Rain days: + 25 (4) Statewide total = 1377
  • HINT: Several outbreaks of this insect occurred in the deep south
  • Outbreak of armyworms in soybean, peanuts
  • 20 (4) 19 (3) 15 (4) 32 (5) 48 (5) 16 (5) 13 (5) 27 (6) 36 (6) Late Aug. & Sept. Late Aug. & Sept. July, Aug., Sept. 29 (6) Late July-Aug. Weather impact: Temp: Str. - Rainfall: ?? Rain days: Str. + 17 (3) 12 (4) Statewide total = 1386
  • Microspines
  • 3 (4) 2 (3) 7 (4) 20 (5) 15 (5) 3 (5) 6 (5) 6 (6) 3 (6) Early Sept. Early Aug. , Sept. Late Aug., Sept. 1 (6) Late July, then none 3 (3) Weather impact: Temp: mixed Rainfall: NS Rain days: NS Statewide total = 342
  • Microspines
  • 6 (4) 10 (3) 25 (4) 12 (5) 16 (5) 7 (5) 5 (5) 3 (6) 11 (6) June, Aug., Sept. July, Aug. Aug., Sept. 8 (6) 3 (3) 8 (4) 17 (4) Late Aug. Weather impact: Temp: - Rainfall: NS Rain days: NS Statewide total = 589
  •  
  • 2 (4) 3 (3) 4 (4) 4 (5) 1 (5) 4 (5) 2 (5) 1 (6) 3 (6) Late Aug. July July, Aug. 3 (6) 1 (3) Early July Weather impact: Temp: - Rainfall: NS Rain days: NS Statewide total = 125
  •  
  • Lesser cornstalk borer in many crops (Clarke, Washington, Escambia Co., Henry Counties)
  • 119 (5) 116 (5) 76 (5) 46 (5) 142 (6) 143 (6) July, Aug. July, Aug. Late Aug., Sept., Oct. 77 (4) Weather impact: Temp: NS Rainfall: NS Rain days: + Statewide total = 3586
  •  
  • Corn rootworm damage to peanuts (Baldwin Co., Henry Co.)
  • Wireworm damage to peanuts (Baldwin Co.)
  • 4 (4) 28 (3) 3 WCRW 12 (4) 7 (5) 1 (5) 1 (5) 4 (5) 2 (6) June, July June June 8 (6) 1 WCRW June WCRW SCRW Weather impact: Temp: NS Rainfall: mixed Rain days: mixed Statewide total = 266
    • For IPM photo archive: www.aces.edu/go/85
    • Insect Pest Advisories: July-October (15 in 2009)
    • Timely Information on AlabamaCrops.com, AGFAX.COM, www.aces.edu
    • Pest Advisory Hotline (weekly renewed):
    • 1-800-446-0375
    • Signup for alerts email [email_address]
    • Several revisions to Peanut IPM Guide (ANR-500)
    • Look at the IPM display before you leave today
  • www.aces.edu/go/85
  •  
  • Subscribe to get FREE Advisories!
    • Generate information that you can use WITHIN SEASON
    • Know what to scout for & when to scout INTENSIVELY
    • Automatic identification of closely related species
    • Save time, save money!
    • Goal:
    • Encourage registration of biological insecticides
    • Focus on soil insect pest control (alternative to chlorpyrifos)
    Tobacco thrips Western flower thrips
    • Locations: Fairhope (22 May), Headland (8 June)
    • Peanut variety: Georgia green
    • Insecticides tested:
      • Temik (aldicarb) @ 0.5 lb AI/acre
      • Thimet (phorate) @ 0.38 lb AI/acre
      • BotaniGard ES ( Beauveria bassiana ) @ 1-2 quart/acre
      • QRD452 ( Chenopodium ) @ 1-2 quart/acre
      • Radiant (spinetoram) @ 4-8 oz/acre
    • Thrips sampling: foliar sampling 7 DAT using bags
    • Virus hits recorded twice in July
  • Thrips biocontrol test, Fairhope TSWV vs. healthy peanut plant
  • Untr. check: 40 thrips per 5 plants, 2-7 virus hits per 60 ft row Thrips biocontrol test, Fairhope 1 2 3 4 5 6 7
  • Spinetoram (split applications) + phorate (both ½ rates) 6 thrips per 5 plants, <1 virus hit per plot Fast knockdown product…less virus hits Thrips biocontrol test, Fairhope 1
  • Beauveria (split appl.) + phorate (both ½ rates) 35 thrips per 5 plants, 2 virus hit per plot Slow product…virus hits increase 2 Thrips biocontrol test, Fairhope 1
  • QRD 452 (split appl.) + phorate (both ½ rates) 29 thrips per 5 plants, <1 virus hit per plot Slow product…virus hits increase 2 Thrips biocontrol test, Fairhope 1
  • Lessons from 2009 biocontrol study (Phase I)
    • Tobacco thrips is a threat in absence of varietal resistance and/or insecticidal treatment
    • Insecticides have sign. effect on thrips nos., not spotted wilt
    • Placement and timing are important for biological products
    • Split applications of bio-formulations is possible
    • Phase II – Develop delivery techniques for managing soil insect pests
  • New directions to biocontrol research…
    • Screen virulent insect pathogens and formulations for soil insect pests
    • Product placement around seed (“spore minefield”) to increase persistence
    • Develop biointensive IPM plan for sustainable peanut production
  • IPM-CORE
    • New Integrated Peanut Entomology Website:
    SUBSCRIBE TO THIS FOR AUTOMATIC EMAIL UPDATES
  • IPM-CORE
    • NEW IPM4PEANUTS YOUTUBE CHANNEL:
    PLEASE COMPLETE THE POST-TEST NOW. THANK YOU VERY MUCH! SUBSCRIBE TO THIS FOR AUTOMATIC EMAIL UPDATES