Memorial University DAI: The tolerance of three Steinernematid nematodes to desiccation and the effects of several types of additives on their mobility

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Title	The tolerance of three Steinernematid nematodes to desiccation and the effects of several types of additives on their mobility
Author	Cleary, L. Basil, 1957-
Description	Thesis (M.Sc.)--Memorial University of Newfoundland, 1991. Biology
Date	1991
Pagination	viii, 114 leaves
Subject	Insect pests--Biological control; Nematoda; Insecticides--Toxicology
Degree	M.Sc.
Degree Grantor	Memorial University of Newfoundland. Dept. of Biology
Discipline	Biology
Language	eng
Notes	Bibliography: leaves 52-58
Abstract	This was a two-part study. In the first part, differences in the ability of three Steinernematid nematodes to remain mobile at various saturation deficit levels were investigated. A TI50 value (time required for 50% of the nematodes within a sample to reach immobility) was obtained for each saturation level and each species. In the second part, the potential of 11 types of additives to enhance nematode mobility (increase the TI50 value) at various saturation deficit levels was evaluated. Results indicated that each species had significantly different TI50 values for each saturation level. Steinemema feltlae (All strain), Stcinernema sp. Nfld. strain No. 1(L1C strain), and Steinemema bibionis had the highest, medium and lowest values, respectively. The additives tested separated into groups based on their TI50 values. The best group with the highest TI50 values consisted of base, heavy and 2251 additives. The second group, klearol, pyronyl and Exxon, and the third group, soybean, savol, cottonseed, sunspray and citrus, had the median and lowest TI50 values, respectively. The additives of the first group possessed the lowest relative viscosity values, while those of the second and third groups possessed the median and highest viscosity values, respectively.
Type	Text
Resource Type	Electronic thesis or dissertation
Format	Image/jpeg; Application/pdf
Source	Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries
Local Identifier	76099296
Rights	The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission.
Collection	Electronic Theses and Dissertations
Scanning Status	Completed
PDF File	(9.22 MB) -- http://collections.mun.ca/PDFs/theses/Cleary_LBasil.pdf
CONTENTdm file name	34384.cpd