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XEROGRAPHY, A NEW TOOL FOR IN SITU STUDY OF INSECTS1

Published online by Cambridge University Press:  31 May 2012

P. Martel  and
A. Bélanger
P. Martel
Affiliation:
Research Station, Agriculture Canada, St. Jean, Quebec
A. Bélanger
Affiliation:
Research Station, Agriculture Canada, St. Jean, Quebec
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Extract

The development of insects that live within plant tissues has always been difficult to observe. Reliable information on their biology has been obtained by making daily dissections of infested plants but that procedure sacrifices both insects and plants and does not allow continuous observations of individual insects from plant entrance to emergence. Milner et al. (1950) developed an X-ray technique which provided satisfactory delineation of internal infestation of insects in grain. With their method they were able to observe insect development of the granary weevil, Sitophilus granarius (L.), and the rice weevil, Sitophilus oryzae (L.), without any deleterious effects of radiation upon their development. Other techniques applied in seed testing (Metzner 1962), coffee beans, and nut evaluations (Esteves 1959; Vilar 1966) are not applicable to soft vegetable materials such as maize stalk and ear.

Type
Articles
Information
The Canadian Entomologist , Volume 109 , Issue 2 , February 1977 , pp. 317 - 318
Copyright
Copyright © Entomological Society of Canada 1977

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References

Esteves, A. B. 1959. Radiological method for determining borer infestation of fresh coffee beans. Revta caf Portugues 6(22): 2754.Google Scholar
Metzner, P. 1962. The use of x-ray magnifying equipment for morphological seed testing and similar biological tasks. Kulturpflanze Suppl. 3: 296308.Google Scholar
Milner, M., Lee, M. R., and Katz, R.. 1950. Application of x-ray technique to the detection of internal insect infestation of grain. J. econ. Ent. 43(6): 933935.Google Scholar
Roach, J. F. and Hilleboe, H. E.. 1955. Xerography. Am. J. Roentgenol. 73: 59.Google Scholar
Vilar, H. D. 1966. Radiological examination of cashew-nuts for the assessment of their phytosanitary condition. Estud. agron. Lisboa 7(): 2734.Google Scholar