Development and Kikuyu Consumption of Preimaginal Herpetogramma licarsisalis (Lepidoptera: Pyralidae) Reared at Temperatures Between 15 and 25°C

A laboratory experiment compared development and kikuyu, Pennisetum clandestinum Hochst. ex Chiov. South, consumption in preimaginal grass webworm, Herpetogramma licarsisalis (Walker), at 15, 18, 20, and 25°C. Mean developmental time from oviposition to adult emergence was 25.0 d at 25°C, 43.4 d at...

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Bibliographic Details
Published in:Environmental entomology 2004-10, Vol.33 (5), p.1178-1184
Main Authors: Jensen, J. G, Cameron, C. A
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Animals
Autoecology
Biological and medical sciences
body measurements
developmental polymorphism
duration
food intake
Fundamental and applied biological sciences. Psychology
gender differences
grass webworm
head
head capsule width
head capsule widths
Herpetogramma licarsisalis
insect development
instars
larvae
mortality
Pennisetum clandestinum
PHYSIOLOGICAL ECOLOGY
Protozoa. Invertebrata
temperature
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Summary:A laboratory experiment compared development and kikuyu, Pennisetum clandestinum Hochst. ex Chiov. South, consumption in preimaginal grass webworm, Herpetogramma licarsisalis (Walker), at 15, 18, 20, and 25°C. Mean developmental time from oviposition to adult emergence was 25.0 d at 25°C, 43.4 d at 20°C, 50.4 d at 18°C, and 81.4 d at 15°C. Survival decreased with decreasing temperature but not significantly. Total and daily kikuyu leaf area consumed per larva differed significantly with temperature. Leaf consumption increased exponentially with instar. Some larvae developed through six instars, rather than the usually reported five, at temperatures
ISSN:0046-225X
1938-2936
DOI:10.1603/0046-225X-33.5.1178