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PLoS One

Title:		Can mass trapping reduce thrips damage and is it economically viable? Management of the Western flower thrips in strawberry
Author(s):		Sampson C; Kirk WD;
Address:		"Centre for Applied Entomology and Parasitology, School of Life Sciences, Keele University, Newcastle under Lyme, Staffordshire, United Kingdom"
Journal Title:		PLoS One
Year:		2013
Volume:		20131125
Issue:		11
Page Number:		e80787 -
DOI:		10.1371/journal.pone.0080787
ISSN/ISBN:		1932-6203 (Electronic) 1932-6203 (Linking)
Abstract:		"The western flower thrips Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) is a cosmopolitan, polyphagous insect pest that causes bronzing to fruit of strawberry (Fragaria x ananassa). The main aim of this study was to test whether mass trapping could reduce damage and to predict whether this approach would be economically viable. In semi-protected strawberry crops, mass trapping of F. occidentalis using blue sticky roller traps reduced adult thrips numbers per flower by 61% and fruit bronzing by 55%. The addition of the F. occidentalis aggregation pheromone, neryl (S)-2-methylbutanoate, to the traps doubled the trap catch, reduced adult thrips numbers per flower by 73% and fruit bronzing by 68%. The factors affecting trapping efficiency through the season are discussed. Damage that would result in downgrading of fruit to a cheaper price occurred when bronzing affected about 10% of the red fruit surface. Cost-benefit analysis using this threshold showed that mass trapping of thrips using blue sticky roller traps can be cost-effective in high-value crops. The addition of blue sticky roller traps to an integrated pest management programme maintained thrips numbers below the damage threshold and increased grower returns by a conservative estimate of pound2.2k per hectare. Further work is required to develop the F. occidentalis aggregation pheromone for mass trapping and to determine the best timing for trap deployment. Mass trapping of thrips is likely to be cost-effective in other countries and other high-value crops affected by F. occidentalis damage, such as cucumber and cut flowers"
Keywords:		"Animals Costs and Cost Analysis Female Fragaria/*parasitology Male Pest Control, Biological/economics/*methods Seasons Sex Attractants *Thysanoptera;"
Notes:		"MedlineSampson, Clare Kirk, William D J eng HL01107/HL/NHLBI NIH HHS/ Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't 2013/11/28 PLoS One. 2013 Nov 25; 8(11):e80787. doi: 10.1371/journal.pone.0080787. eCollection 2013"