Vertical integration in pepper pest management
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Vertical Integration in Pepper Pest Management. Charles Mellinger PhD Glades Crop Care, Inc Jupiter, Florida August 29, 2008. IPM and Multiple Pests. My talk today: Managing 2 or more pests on the same plant with conflicting control choices. Pepper example: WFT and pepper weevil

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Vertical Integration in Pepper Pest Management

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Vertical integration in pepper pest management

Vertical Integration in Pepper Pest Management

Charles Mellinger PhD

Glades Crop Care, Inc

Jupiter, Florida

August 29, 2008


Ipm and multiple pests

IPM and Multiple Pests

  • My talk today: Managing 2 or more pests on the same plant with conflicting control choices.

    • Pepper example: WFT and pepper weevil

    • PEW controls—Vydate & pyrethroids—eliminate Orius and explode WFT

    • WFT controls—spinosad/spinetoram, Beleaf, & Orius


Pesticide choice conflict

Pesticide Choice Conflict

PEW

WFT


How reduce conflict

How reduce conflict?

Eliminate PEW hosts

Introduce Catalaccus parasitoids into nightshade (NS)

Use least-toxic PEW’icides

Monitor movement PEW with traps

GPS GIS mapping of PEW and NS


Vertical integration in pepper pest management

Dropped Fruit


Pepper weevil management

Pepper Weevil Management

Situation:

PEW is the system driver

  • Controlled by frequent and heavy doses of carbamates and pyrethroids

    Results:

  • Elevated resistance to oxamyl

  • No beneficial activity

  • Not sustainable

Anthonomas eugenii


Vertical integration in pepper pest management

Mean Percent Pepper Weevil Fruit Loss

Over the Last 4 Years – Not Acceptable!

Nov-10%

Jan-25%

Nov-8%

Jan-20%

Nov-6%

Feb-27%

Nov-4%

Feb-32%

Dec-5%

Mar-24%

Dec-7%

Mar-22%

Dec-6%

Mar-34%

Dec-8%

Mar-37%


Pepper weevil management1

Pepper Weevil Management

Insights and Innovation:

  • Determined alternate host is nightshade

  • Partial solution: attempt to eliminate nightshade

  • New tool -- Catolaccus to parasitize PEW eggs

    Program:

  • Release Catolaccus into nightshade reservoir for reduced PEW populations


Vertical integration in pepper pest management

Area-wide Pest Management in Action: PEW movement mid season, 2001-2002

Farm A

Farm B

>20

11-20

Farm C

PEW trap

counts

5-10

1-4

0


Vertical integration in pepper pest management

Season-end PEW Movement Impacted by Areas of Nightshade

Pepper

Farm B

Pepper

Farm A

Weevils/trap

>20

Areas of

nightshade

11-20

Pepper

Farm C

5-10

1-4

0


Vertical integration in pepper pest management

Mean Percent Pepper Weevil Fruit Loss in 2002-2003 – Prevention Works!

Nov-0.5%

Jan-2%

Nov-1%

Jan-2%

Nov-0%

Feb-2%

Nov-0%

Feb-2%

Dec-1%

Mar-2%

Dec-2%

Mar-1%

Dec-3%

Mar-1%

Dec-2%

Mar-0%


Results summary

Results Summary

2000-2002: High infestations

2003: 45% reduction

2004: 64% reduction

2005: 76% reduction


Final result control of pew and wft

Final Result: Control of PEW and WFT

Use 3-tiered system to reduce PEW population available for crop

Monitor PEW outside and inside crop

Use least toxic insecticides

Monitor and identify thrips population in crop and surrounding vegetation


Thank you

Thank You!

  • See www.gladescropcare.com for more information

  • Contact me at 561-746-3740

  • [email protected]


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