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Diamondback Moth, Plutella xylostella (L.), control studies on cabbage in St. Kitts

Author

Listed:
  • Yencho, G.C.
  • Blanchette, T.
  • Dolphin, E.

Abstract

Diamondback moth (DBM) (Plutella xylostella (L.» insecticide efficacy and population dynamics studies were conducted in 51. Kitts 1985 1987. Experiment station and "on-farm" trials were conducted in addition to monitoring small farmers cabbage crops for DBM and Apanteles plutellae population levels. Pennethrin, Bacillus' thuringiensis (Berliner), and pirimiphos-methyl, controlled DaM adequately. Peaks in A. plutellae parasitism coincided with a predominance of 4th instar larvae. The presence of high parasite populations delayed the time to first spray. A relative growth rate analysis of DBM populations indicated that growth rates are correlated to percent A. plutellae parasitism. It is hypothesized that parasitism levels exceeding 25-35% may control DBM populations.

Suggested Citation

  • Yencho, G.C. & Blanchette, T. & Dolphin, E., 1987. "Diamondback Moth, Plutella xylostella (L.), control studies on cabbage in St. Kitts," 23rd Annual Meeting, August 23-28, 1987, St. John's, Antigua 260411, Caribbean Food Crops Society.
    • Handle: RePEc:ags:cfcs87:260411
    DOI: 10.22004/ag.econ.260411
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    References listed on IDEAS

    as
    1. Alam, M. M., 1982. "Cabbage Pests And Their Natural Enemies In Barbados, W.I," 18th Annual Meeting, August 22-28, 1982, Dover, Barbados 262972, Caribbean Food Crops Society.
    2. Yaseen, M. & Barrow, R. M. & Katwaru, G. S., 1977. "Preliminary Studies In The Development Of A Pest Management Programme For Cruciferous Crops In Trinidad And Tobago," 14th Annual Meeting, June 27 - July 2, 1977, Guadeloupe and Martinique 263138, Caribbean Food Crops Society.
    Full references (including those not matched with items on IDEAS)

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    1. Alam, M.M., 1986. "Vegetable Pests And Their Natural Enemies In Barbados," 22nd Annual Meeting, August 25-29, 1986, St. Lucia 261342, Caribbean Food Crops Society.

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