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Phenological and geographical relationships between catches of pea moth in sex‐attractant traps
Author(s) -
PERRY J. N.,
MACAULAY E. D. M.,
EMMETT B. J.
Publication year - 1981
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1981.tb02990.x
Subject(s) - biology , phenology , trap (plumbing) , ecology , pheromone trap , pest analysis , sex pheromone , lepidoptera genitalia , zoology , horticulture , geography , meteorology
SUMMARY Traps containing a sex attractant of the pea moth ( Cydia nigricana ) were used to monitor numbers of male moths in individual fields in south‐eastern and eastern England from 1976 to 1978 at 16 or more sites/yr. Data concerning catches at different sites on several occasions over the flight season, and dates on which a ‘threshold catch’ was achieved were examined, and were related weakly to site locations within areas. Area spray warnings, based on trap catches at a few sites within a large area, provide a less reliable indication of the need to spray than on‐site monitoring (two traps) in each pea field. On‐site monitoring may be improved by specialist interpretation of trap catches.