Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-28T04:18:36.687Z Has data issue: false hasContentIssue false
  • English
  • Français

A PREDICTIVE MODEL FOR SEASONAL OCCURRENCE OF THREE GRASSHOPPER SPECIES IN SASKATCHEWAN (ORTHOPTERA: ACRIDIDAE)1

Published online by Cambridge University Press:  31 May 2012

S. H. Gage ,
M. K. Mukerji  and
R. L. Randell
S. H. Gage
Affiliation:
Research Station, Agriculture Canada, Saskatoon, Saskatchewan
M. K. Mukerji
Affiliation:
Research Station, Agriculture Canada, Saskatoon, Saskatchewan
R. L. Randell
Affiliation:
Biology Department, University of Saskatchewan, Saskatoon, Saskatchewan
Get access Rights & Permissions [Opens in a new window]

Abstract

Seasonal occurrence of three important grasshopper species (Melanoplus sanguinipes (Fabr.), M. bivittatus (Say), and Camnula pellucida (Scudder)) is estimated. The predictions are based on the amount of embryonic development occurring in fall after oviposition and the rate of egg and nymphal development in spring. Embryonic development is calculated from heat units accumulated above 50°F (10 °C) from daily maximum and minimum temperatures from 1 August to 30 September. Egg and nymphal development during spring can be monitored by accumulating heat above 50°F (10 °C) using daily maximum and minimum temperatures from 1 April.

The number of heat units required by each life stage is provided for comparison with current heat accumulations. The average date of occurrence from hatch to adults is provided based on 17 years of weather data from seven Saskatchewan weather stations.

Type
Articles
Information
The Canadian Entomologist , Volume 108 , Issue 3 , March 1976 , pp. 245 - 253
Copyright
Copyright © Entomological Society of Canada 1976

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

Baskerville, G. L. and Emin, P.. 1969. Rapid estimation of heat accumulation from maximum and minimum temperature. Ecology 50: 514–517.CrossRefGoogle Scholar
Church, N. S. and Salt, R. W.. 1952. Some effects of temperature on development and diapause in eggs of Melanoplus bivittatus (Say) (Orthoptera: Acrididae). Can. J. Zool. 30: 173–184.CrossRefGoogle Scholar
Edwards, R. L. 1964. Some ecological factors affecting the grasshopper populations of western Canada. Can. Ent. 96: 307–320.CrossRefGoogle Scholar
Moore, H. W. 1948. Variations in fall embryological development in three grasshopper species. Can. Ent. 80: 83–88.CrossRefGoogle Scholar
Mukerji, M. K. and Randell, R. L.. 1975. Estimation of embryonic development in populations of Melanoplus sanguinipes (Orthoptera: Acrididae) in fall. Acrida 4: 9–18.Google Scholar
Pickford, R. 1960. Survival, fecundity, and population growth of Melanoplus bilituratus (Wlk.) (Orthoptera: Acrididae) in relation to date of hatching. Can. Ent. 92: 1–10.CrossRefGoogle Scholar
Pickford, R. 1970. The effects of climatic factors on egg survival and fecundity in grasshoppers. Proc. int. Study Conf. Current and future problems of Acridology, pp. 257–260.Google Scholar
Putnam, L. G. 1963. The progress of nymphal development in pest grasshoppers (Acrididae) of western Canada. Can. Ent. 95: 1210–1216.CrossRefGoogle Scholar
Randell, R. L. and Mukerji, M. K.. 1974. A technique for estimating hatching of natural egg populations of Melanoplus sanguinipes (Orthoptera: Acrididae). Can. Ent. 106: 801–812.CrossRefGoogle Scholar
Riegert, P. W. 1961. Embryological development of a non-diapause form of Melanoplus bilituratus Walker (Orthoptera: Acrididae). Can. J. Zool. 39: 491–494.CrossRefGoogle Scholar
Riegert, P. W. 1964. Grasshoppers will hatch when? How age and probable date of grasshopper hatch can be determined. Res. Fmrs 9: 11–14.Google Scholar
Salt, R. W. 1952. Some aspects of moisture absorption and loss in eggs of Melanoplus bivittatus (Say). Can. J. Zool. 30: 55–82.CrossRefGoogle Scholar