Edge distributions of Ceutorhynchus assimilis and its parasitoid Trichomalus perfectus in a crop of winter oilseed rape (Brassica napus)

A - Papers appearing in refereed journals

Murchie, A. K., Williams, I. H. and Perry, J. N. 1999. Edge distributions of Ceutorhynchus assimilis and its parasitoid Trichomalus perfectus in a crop of winter oilseed rape (Brassica napus). BioControl. 44 (4), pp. 379-390.

AuthorsMurchie, A. K., Williams, I. H. and Perry, J. N.
Abstract

The edge distributions of Ceutorhynchusassimilis and its parasitoid Trichomalusperfectus within a crop of winter oilseed rape were investigated between May and July using yellow water-traps arranged on a grid system. A randomisation test, which compared the observed arrangement of trap counts with permuted arrangements, was used to quantify the observed tendency of C. assimilisto congregate at the edges as it migrated into the crop; this tendency declined during the season. Trichomalus perfectus were distributed at the edge of the crop only during the early phase of its immigration in May, which occurred later than immigration of its host. It is considered that this simple means of quantifying insect spatial distribution could prove a useful tool in precision targeting of insecticides.

Keywordsintegrated pest management; precision farming; spatial distribution
Year of Publication1999
JournalBioControl
Journal citation44 (4), pp. 379-390
Digital Object Identifier (DOI)doi:10.1023/A:1009997917947
Open accessPublished as non-open access
FunderMinistry of Agriculture, Fisheries and Food (UK)
Home-Grown Cereals Authority
Funder project or code208
436
433
Publisher's version
Output statusPublished
Publication dates
Print01 Dec 1999
Publication process dates
Accepted10 Aug 1999
Copyright licensePublisher copyright
PublisherSpringer
ISSN1386-6141

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