Defensive secretion of first-instar larvae of rootstalk borer weevil, Diaprepes abbreviatus L. (Coleoptera: Curculionidae), to the fire-ant Solenopsis geminata (F.) (Hymenoptera: Formicidae)

Since several species of predatory ants show some kind of repulsion towards the first-instar larvae (FIL) of Diaprepes abbreviatus L., the predatory behavior of Solenopsis geminata (F.), a common ant in the citrus groves in Guadeloupe, was studied. Different extracts of larvae were disposed on egg m...

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Bibliographic Details
Published inJournal of chemical ecology Vol. 18; no. 11
Main Authors Pavis, C, Malosse, C, Ducrot, P.H, Howse, F, Jaffe, K, Descoins, C
Format Journal Article
LanguageEnglish
Published 01.11.1992
Subjects
ALDEHIDOS
ALDEHYDE
COMPOSICION QUIMICA
COMPOSITION CHIMIQUE
CONTROL BIOLOGICO
CONTROL DE INSECTOS
DEPREDADORES
DIAPREPES ABBREVIATUS
INSECTE NUISIBLE
INSECTOS DANINOS
LARVAS
LARVE
LUTTE ANTIINSECTE
LUTTE BIOLOGIQUE
PREDATEUR
SECRECION
SECRETION
SESQUITERPENOIDE
SESQUITERPENOS
SOLENOPSIS GEMINATA
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Summary:Since several species of predatory ants show some kind of repulsion towards the first-instar larvae (FIL) of Diaprepes abbreviatus L., the predatory behavior of Solenopsis geminata (F.), a common ant in the citrus groves in Guadeloupe, was studied. Different extracts of larvae were disposed on egg masses of D. abbreviatus and presented as prey to the ants, both in the field and in the laboratory. The ants are repelled by the FIL extracts. The allelochemicals involved are produced in large amounts, from 5 to 20 ng per larva. Physiochemical analyses have led to the identification of two sesquiterpenes of molecular weight 218 and 234, secreted in the respective proportions of 65 and 35%
Bibliography:9430208
H10
ISSN:0098-0331
1573-1561
DOI:10.1007/BF00981927