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
23-Jun	0	0	0	0	0	4		49	88	46	14	125	291	32	8	12	669
30-Jun					0	38		490	307	105	36	635	433	77	84	9	2214
07-Jul		1	3		4	12		280	233	20	45	589	489	41	114	23	1854
14-Jul	0	0	1		13	80		334	411	1457	183	543	464	63	107	6	3662
21-Jul	10	23	17		30	41		29	20	835	109	95	64	88	88	29	1478
28-Jul	18	10	34		38	14		13	3	24	74	108	14	22	3	19	394
04-Aug	0	20	21		17	11		1	0	2	5	3	2	0	1	0	83
11-Aug	18	19	25	1	7	0		0	0	0	2	1	0	0	0	1	74
18-Aug	0	21	9	1	0	2		2	0	0	1	0	0	0	0	1	37
25-Aug	0	0	2	0	3	1		0	0	0	0	0	0	0	0	0	6
01-Sep	0	29	17		10	1		0	0	3	1	0	4	0	1	0	66
08-Sep	0	5	3		5	3		0	1	0	0	0	0	0	1	2	20
15-Sep					1	1		0	0	0	0	0	1	0	0	0	3
22-Sep					1	0		1	1	0	1	2	1	1	3	0	11
29-Sep					0	1		5	1	0	0	0	1	0	2	0	10
06-Oct					0	2		2	4	0	1	0	0	0	2	0	11
13-Oct					0	6		2	4	0	0	0	0	0	2	3	17
20-Oct					0	5		4	5	0	0	0	0	0	1	1	16