Cost-benefit analysis of mass trapping in semi-protected strawberry.

Comparison of use of no traps with use of blue sticky roller traps, with and without the Frankliniella occidentalis aggregation pheromone in a UK crop. aCost and return were calculated using current prices of pheromone monitoring lures. If the pheromone were registered and formulated as a control for mass trapping, different prices would apply. bTotal sales with treatment minus total sales without treatment minus cost of treatment.