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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Development of traps for adult Glischrochilus quadrisignatus (Say) (Coleoptera:Nitidulidae) and investigation of olfactory responses to volatile components of corn, raspberry and tomato

Bourchier, Robert S. January 1986 (has links)
No description available.
12

Light-trap studies of seasonal and geographical occurrence of certain species of Lepidoptera in Kansas

Payne, Julius James January 2011 (has links)
Digitized by Kansas State University Libraries
13

A monograph of the nearctic species of the Albofasciatus group of the genus Anthrax scopoli (Diptera: Bombyliidae)

Marston, Norman L.(Norman Lee),1937- January 1962 (has links)
LD2668 .T4 1962 M37
14

Insect outbreaks in Europe : an ecological study

Carpenter, J. Richard January 1938 (has links)
No description available.
15

Molecular analysis of a female-sterile mutation in Drosophila melanogaster

Saunders, Robert David Comrie January 1987 (has links)
No description available.
16

The development of segments in locust embryos

Mee, Jane Elizabeth January 1984 (has links)
No description available.
17

A quantification of the behaviourial dynamics of certain Lepidoptera in response to light

Gaydecki, P. A. January 1984 (has links)
Many types of insect, in particular the nocturnal Lepidoptera, will fly towards artificial sources of illumination. Such animals are often described as being positively phototactic, but although little progress has been made towards a fundamental understanding of this phenomenon, its existence continues to be exploited with the use of light-traps. This thesis attempts to explain, in part, why certain British night-flying Lepidoptera are caught, or fly close to, light-traps. The experimentation and analysis has been structured into three separate but inter-related studies. The first is an investigation into the effects that weather factors exert on light-trap catch. Standard analytical procedures were extended to reveal that sensitivity to these factors is related to insect size and gross morphology. The second of these studies is an analysis of the types of moth flight pattern produced when these insects are exposed to various forms of illumination under field conditions. Moth tracks were recorded on video with the help of image intensification, and the frame-by-frame co-ordinates transferred to, and processed by, a microcomputer, which produced matrix maps of speeds, accelerations and time-surface densities around a light-trap. Instantaneous windspeeds were recorded. The dynamical analysis suggests that moth flight towards light arises primarily from a misinterpretation of the stimulus, competing at short distances with a strong escape response, thus evoking a profound state of disorientation. Furthermore, the data indicated that the types of pattern found were species linked. In the third study, a remotesensing technique was used to quantify moth aerial density, which was compared with simultaneous light-trap catches nearby, giving an estimate of absolute trap catching efficiency under various meteorological conditions. Because of their mode of operation, and their increasing loss of effectiveness in higher windspeeds, light-traps have only a limited capacity to reflect aerial density.
18

Behavioural responses of Ephestia cautella to synthetic pheromones

Quartey, George Kwartelai January 1991 (has links)
No description available.
19

The energetics of foraging insects

Mayberry, J. H. January 1987 (has links)
No description available.
20

The biochemistry and molecular biology of insecticidal proteins and their cellular receptors

Knight, Peter J. K. January 1995 (has links)
No description available.

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