Biological pest control in tree crops
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Biological pest control in tree crops

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Mites on coconut; Sri Lanka fruit fly on mango and other host fruits,Baits for the control of cucurbit fruit flies

Mites on coconut; Sri Lanka fruit fly on mango and other host fruits,Baits for the control of cucurbit fruit flies

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  • Pretty crazy stuff you have there! We don't deal with anything like that in NC, but its always interesting to see what others do about pest problems.
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Biological pest control in tree crops Biological pest control in tree crops Presentation Transcript

  • Biological pest control in tree crops Mites on coconut; Sri Lanka fruit fly on mango and other host fruits Baits for the control of cucurbit fruit flies Rachid Hanna
    • Aceria guerreronis on the
    • underside of coconut bract
    Severely damaged bunch Undamaged bunch Classical biological control of the coconut mite
  • Foreign exploration for the coconut mite and associated natural enemies in America continent
  • Phytoseiid mites on conconut Venezuela
  • Introduction and evaluation of Fopius arisanus for the control of the Sri Lanka fruit fly
  • Parasitism of B. invadens and five indigenous fruit fly species by F. arisanus
    • Highest parasitism of B. invadens - New association of C. cosyra
    Mohammad et al. manusc. In prep 0.02 ± 0.01 3.50 ± 1.34 6 Ceratitis anonae 0.00 ± 0.00 0.00 ± 0.00 7 Ceratitis fasciventris 0.00 ± 0.00 0.17 ± 0.17 6 Ceratitis rosa 0.18 ± 0.05 9.38 ± 2.09 24 Ceratitis cosyra 0.37 ± 0.04 28.94 ± 3.57 17 Ceratitis capitata 0.67 ± 0.04 78.82 ± 8.01 22 Bactrocera invadens Proportion parasitized Parasitized pupae N Fruit fly species
  • Field evaluations of F. arisanus
  • Whole tree cages in guava orchards Orchard A Orchard B B. invadens added F. arisanus added A B Days after cage installation 0 3 6 9 12 0 3 6 9 12
  • Fopius arisanus introduced into Benin and Togo in 2009
  • Other evaluations
    • Open field evaluations in five mango orchards in Benin and two in Togo;
    • Two citrus orchards in Benin
    • Similar evaluations on wild hosts: Terminalia and wild apple ( Irviginia gabonensis )
    • > 100,000 parasitoids released
    • Recovery from all sites
    • Continuing to follow establishment
    • Additional releases in 2010
    • Metarhizium:
  • Baits for the control of fruit flies in cucurbits
  • Management of cucurbit fruit flies with bait sprays GF-120 $624 Net gain $1425
  • Outlook
    • Participatory evaluations with farmers
    • Other crops: e.g., tomato
    • Other baits: e.g., bait from waste yeasts from local breweries.