Influence of herbivore diet on the pathogenesis of Steinernema carpocapsae (Nematoda: Steinernematidae)

The relationship of insect diet to pathogenicity and reproduction of an entomogenous nematode, Steinernema carpocapsae All strain (Nematode: Steinemematidae) was investigated in the black cutworm, Agrotis ipsilon (Hufnagel). Cutworms fed on collard foliage or on artificial diet were equally infected...

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Bibliographic Details
Published inEnvironmental entomology Vol. 23; no. 2
Main Authors Epsky, N.D, Capinera, J.L
Format Journal Article
LanguageEnglish
Published 01.04.1994
Subjects
AGROTIS IPSILON
AUXILIAIRE DE LUTTE BIOLOGIQUE
BRASSICA OLERACEA
NEMATODE ENTOMOPATHOGENE
NEMATODOS DE INSECTOS
NEOAPLECTANA CARPOCAPSAE
ORGANISMOS PARA CONTROL BIOLOGICO
PODER PATOGENO
POUVOIR PATHOGENE
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Summary:The relationship of insect diet to pathogenicity and reproduction of an entomogenous nematode, Steinernema carpocapsae All strain (Nematode: Steinemematidae) was investigated in the black cutworm, Agrotis ipsilon (Hufnagel). Cutworms fed on collard foliage or on artificial diet were equally infected by and killed by S. carpocapsae. However, nematode progeny production was lower in collard-fed cutworm larvae. The difference in progeny production corresponded to difference in lipid content of cutworms; 210 nematodes per mg were produced,from collard-fed larvae, which contained 8% lipids, while 390 nematodes per mg were produced from artificial diet-fed larvae, which contained 16% lipids. Addition of commercially obtained sinigrin, a glucosinolate allelochemical found in collards, to artificial diet at biologically relevant levels also demonstrated suppression of nematode progeny production. It appears that host diet is a salient characteristic in progeny production of entomogenous nematodes
Bibliography:H10
9452952
ISSN:0046-225X
1938-2936
DOI:10.1093/ee/23.2.487