A check list of parasitoids and predators of Opisina arenosella Wlk. on coconut

Simple item page
dc.contributor.authorPillai, G.B.
dc.contributor.authorRamachandran Nair, K.
dc.date.accessioned2014-05-31T08:45:12Z
dc.date.available2014-05-31T08:45:12Z
dc.date.issued2007-02-08
dc.description.abstractTwo species of parasitoids, Antrocephalus sp.? maculipennis CAM. and Trichospilus diatraeae CHERI AN & MARGABANDU and four species of predators, Ankylopteryxoctopunddta FAB., Geocoris sp., Physopleurella sp. and Cardiastethus sp.? pygmaeus pauliniae CARAYON were recorded by the authors on the leaf eating caterpillar, Opisina arenosella WLK. on coconut, for the first time. Including these, the pest supports 40 species of parasitoids and 20 predators. Among the parasitoids, 34 belong to Hymenoptera, 5 to Diaptera and one to Acarina. The hymenopterans fall under 9 families. Fourteen species belong to Chalcididae, seven species to Ichneumonidae, four species to Braconidae, three to Eulophidae, two to Eurytomidae and one species each to Elasmidae, Bethylidae, Eupelmidae and Trichogrammatidae. Three species of tachinids and two phorids constitute the dipterans. Among 40 species of parasitoids, ten are larval, two larval-pupal, two prepupal and twenty five species pupal. Bracon hebetor SAY (B. brevicornis WESM.) Bracon serinopae (CHERIAN), Goniozus nephantidis (MUES.), Elasmus nephantidis ROHWER, Trichospilus pupivorus FERR., T.diatraeae and Jetrastichus israeli (M. & K.) are the seven gregarious parasitoids of 0. arenosella. Twenty species of the predators fall under four orders: I. Coleoptera (Carabidae-4, coccinellidae-4) II. Heteroptera (Anthocoridae-7, Reduviidae-1, Lygaeidae-1) III. Neuroptera (Chrysopidae-2) IV. Psocoptera (Peripsocidae-1) The dipteran, Stomatomyia bezziana BARANOFF which is a common parasitoid in some parts of the eastern and south-eastern tracks of Sri Lanka is not at all present in India. The Sri Lankan biotype of Eriborus trochanteratus (Morley) attacks O. arenosella caterpillars on coconut and this biotype is established at Coimbatore (Tamil Nadu) and Thottappally (Kerala) in India. B. hebetor becomes adapted to Corcyra cephalonica ST., when reared continuously on its larvae in the laboratory and such adults quite often do not exert any high degree of suppression of 0. arenosella in the field. Xanthopimpla pundata F. and x. nana nana SCHULZ. appear in the field only in the latter half of the year. Both species select breeding sites close to the sea shore, back waters, streams and paddy fields and congregate in such sites without uniformly dispersing to all pest-infested regions Bradiymeria sp. dominate the parasitoid complex of 0. arenosella in Kerala and Bradiymeria nosatoi HABU has several desirable attributes of an ideal parasitoid. Larval and pupal parasitism vary from locality to locality and region to region. A thorough survey for the natural enemies of O. arenosella in different tracts of the country would be rewarding.en_US
dc.identifier.citationIndian Coconut J. 1993 v-23 i-9 p-2-9en_US
dc.identifier.urihttp://hdl.handle.net/123456789/2095
dc.language.isoenen_US
dc.subjectparasitoids
dc.subjectpredators
dc.subjectopisina arenosella
dc.subjectcoconut pest
dc.titleA check list of parasitoids and predators of Opisina arenosella Wlk. on coconuten_US
dc.typeArticleen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
a check list of parasitoids and predators of opisina arenosella wlk. on coconut.pdf
Size:
639.96 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Publications