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

Macrosiphum euphorbiae	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	1	0	0	0	0	0	1	2
14-Apr					0	0		1	0	0	0	0	0	0	0	0	1
21-Apr					0	0		0	0	1	0	0	0	0	1	0	2
28-Apr		0	0		0	0		0	1	6	1	0	1	0	0	2	11
05-May		0	0	0	0	3		5	2	21	15	4	3	1	3	0	57
12-May					0	9		1	3	23	14	2	1	2	4	0	59
19-May		1	3	0	0	2		4	1	8	5	1	2	0	4	1	32
26-May	0	0	0	1	1	2		1	3	3	1	2	3	0	1	1	19
02-Jun	0	2	0	0	0	2		0	0	1	0	0	0	0	0	1	6
09-Jun	0	0	0	0	0	1		0	1	1	1	0	1	0	1	0	6
16-Jun	0	0	0	0	1	0		1	0	1	0	0	0	0	0	2	5
23-Jun	0	0	1	0	1	2		0	1	4	2	2	2	0	1	2	18
30-Jun					3	0		2	4	6	0	3	5	0	2	2	27
07-Jul		7	2		2	1		1	2	1	0	1	2	0	0	3	22
14-Jul	0	3	2		1	0		6	5	1	3	0	2	1	0	0	24
21-Jul	3	12	3		6	0		0	1	1	1	1	0	0	1	1	30
28-Jul	5	19	0		1	0		0	2	2	1	0	0	0	1	0	31
04-Aug	0	6	1		0	5		0	1	0	0	0	1	0	0	0	14
11-Aug	0	2	2	0	0	0		0	0	1	0	0	0	0	1	0	6
18-Aug	0	0	0	0	0	1		0	0	0	0	0	0	0	0	0	1
25-Aug	0	0	0	0	0	0		0	0	0	0	0	0	0	0	0	0
01-Sep	0	0	0		0	0		0	0	0	0	0	0	0	0	0	0
08-Sep	0	1	0		0	0		1	0	0	1	0	0	0	1	0	4
15-Sep					0	0		0	0	0	0	0	0	0	0	0	0
22-Sep					0	0		0	1	0	0	0	0	0	0	0	1
29-Sep					0	0		0	0	0	0	0	0	0	0	0	0
06-Oct					0	0		0	0	0	0	0	0	0	0	0	0
13-Oct					0	1		0	0	0	0	0	0	0	0	0	1
20-Oct					1	1		0	0	0	0	0	0	0	1	1	4