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Interactions of Ants (Hymenoptera: Formicidae) and Mealybugs (Homoptera: Pseudococcidae) on Pineapple

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Title: Interactions of Ants (Hymenoptera: Formicidae) and Mealybugs (Homoptera: Pseudococcidae) on Pineapple
Authors: Jahn, Gary C.
Beardsley, John W.
Keywords: Ananas comosus
Dysmicoccus brevipes
Dysmicoccus neobrevipes
show 3 morePheidole megacephala

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Issue Date: May 2000
Publisher: Hawaiian Entomological Society
Citation: Jahn GC, Bearsley JW. 2000. Interactions of ants (Hymenoptera: Formicidae) and mealybugs (Homoptera: Pseudococcidae) on pineapple. Proc Hawaiian Entomol Soc 34:161–165.
Abstract: Ant and mealybug interactions were studied in a pineapple field near Honolua on the island of Maui, Hawaii. Big-headed ants (Pheidole megacephala (F.)) were found to have a positive association with gray pineapple mealybugs (Dysmicoccus neobrevipes Beardsley) but no association with pink pineapple mealybugs (D. brevipes (Cockerell)). Sticky trap collections revealed that D. neobrevipes and D. brevipes are dispersed by the wind. Field experiments indicated that both species of mealybugs
could establish on pineapple plants, even in the absence of ants. The positive association between P. megacephala and D. neobrevipes was not due to ants transporting
mealybugs, but could have resulted from ants deterring natural enemies or removing honeydew.
Pages/Duration: 6 pages
ISSN: 0073-134X
Appears in Collections:Volume 34 - May 2000 : Hawaiian Entomological Society

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