Hymenopteran and dipteran larval parasitoid species of the cotton bollworm, Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) in chickpea growing districts of Ethiopia

Publication Type

Journal Article

Journal Name

Journal of Essential Oil Research

Publication Date

1-1-1995

Abstract

Essential oil from the leaves of Sphaeranthus cyathuloides O. Hoffm. was examined by GC and GC/MS. The oil (2.9%) was found to contain trans-dihydrocarvone (67%) and cis-dihydrocarvone (26%) and some small amounts of isodihydrocarveol and neoisodihydrocarveol and limonene. The flower oil contained only small amounts of trans-dihydrocarvone (0.3%) and cis-dihydrocarvone (0.6%). © 1995 Allured Publishing Corp.

Keywords

Cis-dihydrocarvone, Compositae, Essential oil composition, Sphaeranthus cyathuloides, Trans-dihydrocarvone

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