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Hawaii Maui Molokai Oahu Kauai Lanai Kahoolawe Niihau Area-Wide Pest Management of Fruit Flies in Hawaii R.F.L. Mau, J. Sugano, E. B. Jang, R. I. Vargas, and L. Wong
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Outcomes Sought: Suppression (control) Sustainable (every year) Environmentally friendly
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Hands-on Teaching Philosophy
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Research Education Assessment Research Education Assessment Area-Wide Fruit Fly Management Components Parasitoid Insects Sterile Insects Field Sanitation Population Monitoring Protein Bait Male Annihilation 1-2-3 Suppression
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Building a Sustainable Statewide Extension Program Define Plan Measure Evaluate Modify
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What is Sustainability? Ability to sustain benefits after program support (technical, education and financial) has significantly decreased or ended
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Measure Grower Performance Community Perceptions Student Interest Our Performance
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Evaluation Tools Testimonials Survey Instruments Observations
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Methods of Measurements Pre-Post /Post-Then Pre Test Interviews Testimonials Observations On-Farm Visitations USDA-ARS
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Baseline Grower Interviews Descriptive survey research Likert-type scales (5 point scales) Surveyed fruit & vegetable growers USDA-ARS
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Purpose of Grower Interviews (Baseline) Knowledge Control strategies Attitudes Perceptions
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Melon fly Bactrocera cucurbitae
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Applied Biology and Ecology Melon fly female long maturation ca. 3 weeks Melon fly has roosting behavior Use trap plants near crops Females need protein food We can kill many females and males before they attain sexual maturity using a system of trap plantings and attract & kill food baits Melon fly has a long lifespan Reduce the lifespan of females using a system of trap plantings and attract & kill food baits
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Why use bait sprays on melon fly roosting hostplants? Kills females and males where they live Weekly application increases chances of killing newly emerged flies before they become sexually mature (25 days) Kills mature flies and avoids additional egg laying (3-4+ months)
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Trap plants Plant melon fly roosting hosts– maize, tapioca, sudex, or castor oil weed Roosting host should be on-farm where the food bait can be applied Spray once a week, more often during rainy periods Corn Sudex Tapioca Castor oil
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Oriental fruit fly Bactrocera dorsalis
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Fruit fly suppression 10 to 15 ME traps per hectare Protein spot application once or twice a week starting at fruit set Sanitation
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