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

Aphis fabae	Inverness	Dundee	Edinburgh	Ayr	Newcastle	FERA, York	Preston	Kirton	Broom's Barn	Wellesbourne	Hereford	Rothamsted	Writtle	Ascot	East Malling	Starcross	Total
Week ending
07-Apr					0	0		0	0	0	0	0	0	0	0	0	0
14-Apr					0	0		1	0	0	0	0	0	0	0	0	1
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		4	3	0	6	1	1	0	0	0	15
12-May					0	1		8	10	11	10	8	16	0	1	2	67
19-May		0	1	0	0	2		8	5	13	14	3	18	3	2	2	71
26-May	0	0	1	0	0	1		2	1	7	2	3	25	1	5	0	48
02-Jun	0	0	2	0	0	1		1	1	15	0	1	33	2	1	13	70
09-Jun	0	0	0	0	0	1		1	2	27	0	1	48	2	4	0	86
16-Jun	0	0	0	0	0	1		1	5	30	3	2	24	2	2	1	71