Insecticide usage for backyard vegetable production


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This presentation was developed by Dr. A and delivered at the home garden vegetable production workshop in Selma, AL. This presentation discusses a new insecticide mode of action and correct application techniques along with several research updates.

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  • Bean plataspid was first detected in Georgia in October, 2009. In October 2010, the insect was first found in Cleburne County, AL.
  • Insecticide usage for backyard vegetable production

    1. 1. Integrated Pest Management for Backyard Vegetables<br />Dr. Ayanava Majumdar<br />Extension Entomologist (Peanuts, Vegetables)<br />State SARE Coordinator (Auburn U)<br />&<br />Willie Datcher<br />Reg. Ext. Agent, ACES<br />
    2. 2. Alabama insect monitoring project 2009-10<br />Peanut farm<br />Vegetable farm<br />+<br />2009 <br />(15 sites)<br />2010 <br />(30 sites)<br />Outputs: <br />25,000+ insect trapped<br />400+ lbs of soil analyzed<br />
    3. 3. Insect Trap Catches in Vegetables<br />
    4. 4. EBPM Training Events<br />Regional Extension Agent training in improved scouting practices<br />IPM training to farmers at farmsin Alabama<br />
    5. 5. Master Gardeners IPM Project (2010): Efficacy of Imidacloprid<br />Establishing a Vegetable Research Garden<br />May 2010<br />April 2010<br />Soil preparation:<br />Fertilizer<br />Insecticide gran.<br />Phyllis & George Holman (MG Volunteers)<br />Final vegetable garden <br />(TP date: May 7, 2010)<br />
    6. 6. Major Insect Pests – Sentinel Plots (2010 - A drought year)<br />Grasshopper<br />Colorado potato beetle<br />Leptinotarsadecemlineata<br />Tomato fruitworm, Helicoverpa zea <br />Brown stink bug, Euschistus servus<br />
    7. 7. Major Insect Pests – Sentinel Plots (2010 - A drought year)<br />Beet armyworm, Spodopteraexigua<br />Spider mites (Tetranychus sp.) <br />Fall armyworm, Spodopterafrugiperda<br />Yellowstriped armyworm, Spodoptera ornithogalli<br />
    8. 8. Major Insect Pests – Sentinel Plots (2010 - A drought year)<br />Squash vine borer, Mellitiacucurbitae<br />Sugarcane borer, Euetheolarugiceps<br />Tomato hornworm, Manducaquinquemaculata<br />
    9. 9. Emerging Pest on Vegetables: Leaffooted Bugs<br />Leptoglossusgonagra<br />Leptoglossusphyllopus<br />Heavy fruit drop in eggplants and tomatoes (LFBs)<br />Leptoglossuszonatus<br />
    10. 10. Emerging Crop Pests: Invasive Insects<br />Brown marmorated stink bug, Hyalomorphahalys<br />Detected in 3 Counties<br />Bean plataspid, Megacopta cribraria<br />Detected in AL in 2010<br />Seeks shelter in homes<br />Infests kudzu, soybean, kidney beans, lima beans, etc.<br />UGA Photos<br />
    11. 11. Trap Cropping for Insect Pest Reduction<br />Perimeter Trap Cropping<br />Trap crop (squash)<br />Trap crop = early planted squash, apply insecticide on borders<br />Squash lured 66% cucumber beetles and 90% squash bugs<br />Reduced insecticide usage<br />Main crop <br />(watermelon, cantaloupe, cucumber)<br />
    12. 12. Net house vegetable production, 2011<br />Untreated check (insect injury 15 days after planting)<br />Research sites: Fairhope, Thomaston<br />Untreated bell peppers inside net house (slight insect injury)<br />
    13. 13. Organic collard production (Brewton, 2010)<br />BotaniGard ES, Molt-X, Suffoil-X<br />BotaniGard is a living insecticide<br />Molt-X is an insect growth regulator (3% azadirachtin)<br />Suffoil-X is a pre-emulsified paraffinic oil<br />Results (Oct. 2010): <br />Aphid pop. high, no caterpillars<br />Sign. results: BG + MX rotated with SX to below 0 aphid/plant for 3 wks; Untreated check = 3-5 aphids per plant<br />No yield response (22-24 lb/plot)<br />BioWorks, Inc. sponsored organic vegetable research<br />
    14. 14. Organic collard production (Brewton, 2010)<br />
    15. 15. What is IPM?<br /><ul><li>Major crop losses occur due to:
    16. 16. Lack of early detection of insects
    17. 17. Insecticide resistance by over-use
    18. 18. Loss of natural control with insecticides
    19. 19. “Integrated pest management (IPM) is a threshold based decision management system which leads to judicious use of multiple pest control tactics.”</li></li></ul><li>Decision making in IPM…<br />Insect detection & monitoring<br />Insect identification<br />Population pressure<br />Economic threshold<br />Make treatment decision<br />Choosing right insecticide<br />Applying insecticide timely & correctly<br />
    20. 20. Toxicity of formulations<br />Source: Penn State Univ. IPM Program<br />
    21. 21. Bayer’s systemic insecticide<br /><ul><li> Systemic poison, introduced in 2010
    22. 22. Apply at first sign of insects: aphid, thrips, WF, flea beetles
    23. 23. Best as PoE drench
    24. 24. CAUTION: Long waiting period (21 d) </li></ul>Bayer Advanced FCV<br />
    25. 25. Master Gardeners IPM Project (2010): Insect Monitoring & Scouting<br />Volunteer: Carol Rhodes <br />(detailed observations on insect pests and plant yields)<br />
    26. 26. Master Gardeners IPM Project (2010): <br />Efficacy of Imidacloprid<br />Observations:<br /><ul><li>Imidacloprid provides early season protection
    27. 27. Promotes plant establishment & growth
    28. 28. Earlier fruit harvest</li></ul>Volunteer: <br />Carol Rhodes<br />
    29. 29. Master Gardeners IPM Project (2010): <br />Plant Yield from Integrated Treatments<br />Findings:<br /><ul><li>Yield response significant for bell peppers but not for okra, tomato
    30. 30. Spray of carbaryl & malathion did not provide large returns
    31. 31. Repeating study in 2011</li></li></ul><li>Treat underside of leaves to increase product persistence<br />Extend life of biological insecticides (Bt, BotaniGard) <br />Use an angled sprayer boom<br />Treat the young top leaves<br />
    32. 32. Alabama Vegetable Entomology Website<br /><br />ONE-STOP-SHOP for vegetable IPM: ACES Publications, Research Projects, Slideshare, Facebook, YouTube <br />
    33. 33. The IPM Communicator(A FREE electronic newsletter-weekly)<br />570+ subscribers in AL<br />Six financial gains reports: $3,550 in pesticide saving<br />Sign up today for 2011 series!<br />
    34. 34. Join us on Facebook!<br />Advantages: Live updates from field, access to videos and website, discussion of timely topics, interactive<br />
    35. 35. YouTube Channel: IPMNews<br />Recorded Live in Field!<br />
    36. 36. IPM Recommendations…<br />Choose the right cultivar<br />Use pheromone traps (first detection is important)<br />No substitute for scouting!<br />Insecticides for rescue treatments only<br />Treat the underside of leaves (increase i-cide persistence)<br /><ul><li>Careful with insecticide generics (phytotoxicity)
    37. 37. Integrate using newer insecticides (IPM):
    38. 38. Use the Home Garden Vegetable IPM Guide (ANR-500)
    39. 39. Call ACES for help with insect ID!</li>