Full TGIF Record # 18481
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DOI:10.1111/j.1365-2494.1990.tb01948.x
Web URL(s):http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1990.tb01948.x/pdf
    Last checked: 12/16/2010
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    Access conditions: Item is within a limited-access website
Publication Type:
i
Refereed
Author(s):Blackshaw, R. P.
Author Affiliation:Department of Agriculture, Northern Ireland and Department of Agricultural Zoology, The Queen's University of Belfast, Belfast, United Kingdom
Title:Application of a sequential sampling technique to DIY assessment of leatherjacket (Diptera: Tipulidae) populations in grassland
Source:Grass and Forage Science. Vol. 45, No. 3, September 1990, p. 257-262.
# of Pages:6
Publishing Information:Oxford: Blackwell Scientific Publications
Related Web URL:http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1990.tb01948.x/abstract
    Last checked: 12/16/2010
    Notes: Abstract only
Keywords:TIC Keywords: Plastic pipes; Tipulidae; Density
Abstract/Contents:"The use of brine in plastic pipes inserted into the ground is now an established technique for sampling leatherjackets in grassland. Three sequential sampling plans were compared with a standard twelve-pipe sample for the probability of a recommendation to spray and the number of sample units necessary before a decision over a range of population densities. Data derived from field studies showed a good fit with the expected outcomes. All four plan models were applied to leatherjacket distribution data from Northern Ireland. This shows the number of samples required before a decision was reduced with sequential sampling and that the use of single sequential samples would increase the risk of error. The results are discussed in the context of the physical limitations of the brine sampling procedure and it is concluded that a sequential scheme based upon groups of four pipes would reduce average sampling time by 36% without increasing error."
Language:English
References:7
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Blackshaw, R. P. 1990. Application of a sequential sampling technique to DIY assessment of leatherjacket (Diptera: Tipulidae) populations in grassland. Grass Forage Sci. 45(3):p. 257-262.
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DOI: 10.1111/j.1365-2494.1990.tb01948.x
Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1990.tb01948.x/pdf
    Last checked: 12/16/2010
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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MSU catalog number: SB 197 .B7
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