Pecan Weevil Update - PowerPoint

Document Sample
Pecan Weevil Update - PowerPoint Powered By Docstoc
					       Pecan Weevil Update


           Sherry Sanderson
                 Chief
Entomology and Nursery Industries Bureau
 New Mexico Department of Agriculture
              Biology
 2-3 year life cycle
 Adult emerges, feeds and lays egg in
  gel stage of pecan nut
 Larvae feed on the pecan nutlet
 Larvae drills a hole in pecan nut and
  drop to the ground
 Larvae tunnels 12” to 24” inches into
  soil
        Hosts




Pecan           American
                Hickory
                Location
Pecan Weevil is found from New York to Iowa
  to Oklahoma, and across the southeastern
  states. In Texas, the weevil is found in 131
  counties.
        Eradication Efforts
 Emergence Monitoring
 Insecticide Applications
 Cold Treatment
 Cleaning Plant Inspections
 Import Inspections
          Emergence Monitoring
   Counties monitored
    – Dona Ana, Luna, Otero
   Emergence traps placed in
    orchards and yard
    – Determine adult emergence
   Nutlet monitoring
    – Sampled to determine stage
   Applications were started during
    water stage – prior to gel stage or
    upon weevil capture
        Insecticide Applications
   Prior to gel stage
    – Labeled rates of Fury® and/or
        Sevin XLR®
   Applications
    –   July/August-September
    –   Every 7-10 days
    –   Owner responsible for spraying
    –   Contractor hired
             Trapping Results 2003
   Trapped 7 pecan weevils in infested
    areas
    – 6 weevils in Dona Ana County
    – 1 weevil in Otero County


   Pecan nuts found by inspectors with
    pecan weevil larvae exit hole
    – 0 nuts in Dona Ana County orchard
    – 0 nuts in Luna County backyard
    – 0 nuts in Otero County orchard
     Cleaning Plant Inspections
 Hired 4 temporary inspectors
 Areas inspected (# of cleaning plants inspected)
           Pecos Valley - 15
           Otero County - 7
           Mesilla Valley
              – North Valley - 14
              – South Valley - 20
           Luna County - 2
           Sierra County - 1
   Cleaning plants inspected twice weekly
    – November, 2002 to February, 2003
   Inspected trash piles, seconds, etc.
                   Harvest
 Pecans at infested orchards
   – Cleaned at one facility
   – Cold treatment
       7 days (168 hrs) at 0 degrees F

 Cleaning Trash
   – Subjected to cold treatment prior to disposal
 Custom Harvesting
   – Monitored all movement and cleaning of equipment
              House Survey
   Deming (houses in a 10 block (E-W &
    N-S)
    – 42 houses with pecan trees inspected – No
      evidence of pecan weevil
   Tularosa and Alamogordo
    – Inspector randomly inspected pecan trees in
      Tularosa and Alamogordo area - No evidence
      of pecan weevil
                 Imported Pecans
   Interstate/Intrastate
    – Master Permits
           Alabama
           Texas
    – Random checks of retail areas
            inspections - 67
   International
    – Compliance agreements with importers
           Check all certifications
           Trash disposal requirements
           Inspect loads
                 What Next
   Otero County
    – 1 weevil captured
    – Spray – 2 more years
   Dona Ana County
    – 6 weevil captured
    – Spray – 2 more years
          Acknowledgements
 Western Pecan Growers Association
 Pecan Task Force
 New Mexico State University
 Otero County Pecan Growers Association
 Otero County Cooperative Extension Service
 Texas Agricultural Extension Service, Bill Ree
 Agriliance
 Rose Garcia, Juan Gamon, Bill Guthrie, Barbara Sharpe
 NMDA staff

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:16
posted:7/20/2012
language:English
pages:14