Captures by the network of traps run by the Rothamsted Insect Survey are shown below:

Nasonovia ribisnigri	Inverness	Dundee	Edinburgh	Ayr	Newcastle	FERA, York	Preston	Kirton	Broom's Barn	Wellesbourne	Hereford	Rothamsted	Writtle	Ascot	East Malling	Starcross	Total
Week ending																	0
07-Apr					0	0		0	0	0	0	0	0	0	0	0	0
14-Apr					0	0		0	0	0	0	0	0	0	0	0	0
21-Apr					0	0		0	0	0	0	0	0	0	0	0	0
28-Apr		0	0		0	0		0	0	0	0	0	0	0	0	0	0
05-May		0	0	0	0	0		0	0	0	0	0	0	0	0	0	0
12-May					0	0		0	0	0	0	1	0	0	1	0	2
19-May		0	0	0	0	0		0	0	0	0	0	0	0	0	0	0
26-May	0	0	0	0	0	0		0	0	0	0	0	0	0	0	0	0
02-Jun	0	0	1	0	0	0		0	0	0	0	0	0	0	0	0	1
09-Jun	0	0	0	0	0	0		0	1	0	0	0	0	0	0	0	1
16-Jun	0	0	0	0	0	0		0	0	0	0	1	0	0	0	0	1
23-Jun	0	0	0	0	0	0		0	0	0	0	0	0	0	0	0	0
30-Jun					0	0		0	0	0	0	1	0	1	0	0	2
07-Jul		0	0		0	0		0	0	0	0	0	0	0	0	2	2
14-Jul	0	1	0		0	0		2	0	0	0	1	0	0	0	0	4
21-Jul	0	1	1		0	0		0	1	1	0	2	1	3	0	0	10
28-Jul	0	1	0		0	0		0	1	0	0	0	1	0	0	0	3
04-Aug	0	1	1		0	0		1	0	0	0	1	0	0	1	0	5
11-Aug	1	1	0	0	0	0		0	1	0	0	0	0	0	0	0	3
18-Aug	0	0	0	0	0	0		0	0	0	0	0	0	0	1	0	1
25-Aug	0	0	0	0	0	1		0	0	0	0	0	0	0	0	1	2
01-Sep	0	0	0		0	0		0	0	0	0	0	1	0	0	1	2
08-Sep	0	0	0		0	0		0	0	0	0	0	0	0	0	0	0
15-Sep					0	0		0	0	0	0	0	0	0	0	0	0
22-Sep					0	0		0	0	0	0	0	0	0	0	0	0
29-Sep					0	0		0	0	0	0	0	0	0	0	0	0
06-Oct					0	0		0	1	0	0	0	0	0	1	0	2
13-Oct					0	0		1	0	0	0	1	0	0	0	0	2
20-Oct					0	1		1	0	0	0	0	0	0	0	4	6