Table 4.

The number of traps monitored by each institute for each D. suzukii-year. Given in brackets are the number of traps that were not included in this study, as these traps were in operation before the first catch of D. suzukii.

Operator	2011–2012	2012–2013	2013–2014	2014–2015	2015–2016	2016–2017	2017–2018
JKI Dar	(0) 0	(8) 0	(10) 3	10	13	13	6
JKI Dos	(5) 1	11	23	60	56	61	45
JKI Sie	(19) 0	16	17	17	19	19	17
Total	(24) 1	27	43	87	88	93	68