Nymphula africalis, azolla pest in Nigeria

Insect damage reportedly limits azolla production as a supplementary N source for rice in many Asian countries. It was observed high infestations of caseworm Nymphula africalis Hampson on Azolla pinnata in the 1986 wet season in multiplying tanks at Baddegi, Nigeria. High incidence on the Institute&...

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Bibliographic Details
Published inInternational rice research newsletter Vol. 12; no. 4
Main Authors Ukwungwu, M.N, Fagade, S.Q, Fagbohun, E. (National Cereals Research Inst., Badeggi, Bida (Nigeria))
Format Journal Article
LanguageEnglish
Published 01.08.1987
Subjects
AZOLLA
INFESTACION
INFESTATION
NIGERIA
NYMPHULA
ORYZA SATIVA
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Summary:Insect damage reportedly limits azolla production as a supplementary N source for rice in many Asian countries. It was observed high infestations of caseworm Nymphula africalis Hampson on Azolla pinnata in the 1986 wet season in multiplying tanks at Baddegi, Nigeria. High incidence on the Institute's farm at Badeggi were also observed. The larvae were reared in the laboratory and the adult identified by the Commonwealth Institute of Entomology, London, as Nymphula africalis. This is the first report of this species on azolla in Nigeria. Nymphs and adults of Tramea sp. (Odonata:Libellulidae) were predators of both larvae and adults of N. africalis.
Bibliography:8810676
H10
ISSN:0115-0944