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Behaviour of newly hatched larvae of Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae) associated with their establishment in the host-plant, sorghum

Published online by Cambridge University Press:  10 July 2009

E. A. Bernays ,
R. F. Chapman  and
S. Woodhead
E. A. Bernays
Affiliation:
Centre for Overseas Pest Research, College House, Wrights Lane, W8 5SJ, UK.
R. F. Chapman
Affiliation:
Centre for Overseas Pest Research, College House, Wrights Lane, W8 5SJ, UK.
S. Woodhead
Affiliation:
Centre for Overseas Pest Research, College House, Wrights Lane, W8 5SJ, UK.
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Abstract

The climbing behaviour of newly hatched larvae of Chilo partellus (Swinh.) on sorghum plants was studied in the laboratory and in the field in India. The upward movement is directed by light, while the final downwards movement into the whorl is probably a response to the contrast of light above and dark below. Many larvae fail to reach the whorl, and success is reduced by high winds and rain, and by some physical features of the plants. Two sorghum cultivars, IS 1151 and IS 2205, differed in the extent to which larvae successfully reached their whorls, and their relative susceptibilities altered with age.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 73 , Issue 1 , March 1983 , pp. 75 - 83
Copyright
Copyright © Cambridge University Press 1983

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References

Chapman, R. F., Woodhead, S. & Bernays, E. A. (1983). Survival and dispersal of young larvae of Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae) in two cultivars of sorghum.—Bull. ent. Res. 73, 65–74.CrossRefGoogle Scholar
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