Hostname: page-component-6bf8c574d5-qdpjg Total loading time: 0 Render date: 2025-02-23T12:10:47.530Z Has data issue: false hasContentIssue false
  • English
  • Français

A Radiographic Technique to Identify Healthy, Parasitized, and Diseased Sawfly Prepupae Within Cocoons1

Published online by Cambridge University Press:  31 May 2012

C. S. Holling
C. S. Holling
Affiliation:
Forest Insect Laboratory, Sault Ste. Marie, Ontario
Get access Rights & Permissions [Opens in a new window]

Extract

Many entomological problems require the identification and observation of insects without disturbing their surroundings. Such problems are usually concerned with insects within host or pupal coverings and radiography is a method well suited to their solution. The technique is a special type of radiography in which soft X-rays (wave length longer than about 0.25A), passing through an object of low density, produce a shadow image on fine-grain film in contact with the object.

Type
Articles
Information
The Canadian Entomologist , Volume 90 , Issue 1 , January 1958 , pp. 59 - 61
Copyright
Copyright © Entomological Society of Canada 1958

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

(1)Fenton, F. A., and Waite, W. W.. 1932. Detecting pink boll-worms in cotton seeds by the X-ray. J. Agric. Res., 14: 347.Google Scholar
(2)Fisher, R. C., and Tasker, H. S.. 1940. The detection of wood-boring insects by means of X-rays. Ann. Appl. Biol., 27: 92–100.CrossRefGoogle Scholar
(3)Milner, M., Lee, M. R., and Katz, R.. 1950. Application of X-ray technique to the detection of insect infestation of grain J. Econ. Ent., 43: 933–935.CrossRefGoogle Scholar
(4)Milner, M., Lee, M. R., and Katz, R.. 1952. Radiography applied to grain and seeds. Food Technol., 6(2): 44–45.Google Scholar