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Relative oviposition rates of the cassava hornworm, Erinnyis ello (Lep.: Sphingidae), and accompanying parasitism by Telenomus sphingis (Hym.: Scelionidae), on upper and lower leaf surfaces of cassava

Oviposition by the cassava hornworm, Erinnyis ello L., was quantified for upper (abaxial) and lower (adaxial) leaf surfaces of cassava in the department of Tolima, Colombia. Relative rates of egg parasitism by Telenomus sphingis Ashmead on the different leaf surfaces were determined and compared. Ap...

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Main Authors: Gold, Cliford S., Altieri, Miguel A., Bellotti, Anthony C.
Format: Journal Article
Language:Inglés
Published: Springer 1989
Subjects:
manihot esculenta
erinnyis ello
insect biology
predators and parasites
biological control
entomology
injurious insects
noxious animals
pests
starch crops
biologia del insecto
depredadores y parasitos
Online Access:https://hdl.handle.net/10568/44035
Summary:Oviposition by the cassava hornworm, Erinnyis ello L., was quantified for upper (abaxial) and lower (adaxial) leaf surfaces of cassava in the department of Tolima, Colombia. Relative rates of egg parasitism by Telenomus sphingis Ashmead on the different leaf surfaces were determined and compared. Approximately 6% of hornworm eggs had been placed on lower leaf surfaces. These eggs showed significantly lower rates of parasitism indicating reduced searching time or efficiency by the parasitoid on leaf undersides.

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