Hostname: page-component-77c89778f8-fv566 Total loading time: 0 Render date: 2024-07-16T12:37:41.126Z Has data issue: false hasContentIssue false
  • English
  • Français

On the Biology of Dysdercus howardi, Ballou (Hem.)

Published online by Cambridge University Press:  10 July 2009

Elsie I. MacGill
Elsie I. MacGill
Affiliation:
University of Manchester.
Get access Rights & Permissions [Opens in a new window]

Extract

1. At 27°C. the life-cycle of Dysdercus howardi occupies approximately 32 days.

2. Copulation (at 27°C.) takes place approximately 2·8 days after the last moult of the female insect.

3. At 27°C. oviposition begins about 8 days after the last moult of the female, and 5–6 days after mating.

4. The average number of eggs laid by one female is 141·9 and the average number of batches is two.

5. Mortality appears to be highest among the 5th stage nymphs.

6. The ratio of females to males is 1: 1·27.

7. The average length of adult life in the female Dysdercus howardi is eleven days.

8. A table comparing D. howardi with other species of the genus Dysdercus is given.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 26 , Issue 2 , June 1935 , pp. 155 - 162
Copyright
Copyright © Cambridge University Press 1935

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1Ballard, E. & Evans, M. G. 1928. Dysdercus sidae Montr. in Queensland.—Bull. Ent. Res. 18, pp. 405–432.CrossRefGoogle Scholar
2Ballou, H. A. 1906. Cotton Stainers.—West Indian Bull. 7.Google Scholar
3Empire Cotton Growing Corporation. 1933. Reports from the Experiment Stations 1931–32. Northern Nigeria.Google Scholar
4Golding, F. D. 1928. Notes on the bionomics of cotton-stainers (Dysdercus) in Nigeria.—Bull. Ent. Res. 18, pp. 319–334.CrossRefGoogle Scholar
5Mehta, D. R. 1930. Observations on the influence of temperature and humidity on the bionomics of Dysdercus cingulatus Fabr.—Bull. Ent. Res. 21, pp. 547–562.CrossRefGoogle Scholar
6Ullyett, G. C. 1930. The life-history, bionomics and control of cotton-stainers (Dysdercus spp.) in South Africa.—Bull. Dep. Agric. Un. S. Africa 94.Google Scholar
7Whitfield, F. G. S. 1933. The bionomics and control of Dysdercus (Hemiptera) in the Sudan.—Bull. Ent. Res. 24, pp. 301–313.CrossRefGoogle Scholar