Silver Y moth sightings 2022

As in previous years we are summarising records of sightings of migrant moths (diamond-back moth and silver Y moth) that are pests of UK vegetable and salad crops. These are moths captured or seen in the countries below and reported on 'biodiversity monitoring' websites.

Obviously it is unwise to make direct comparisons between countries but it should be possible to see if large numbers build up.

UK Met Office wind map showing forecast wind direction and speed for next 5 days.

European wind forecast map

Sources of information:

UK - Atropos and (Twitter especially @MigrantMothUK) [* = same sighting recorded on both].

Norway - http://www.artsobservasjoner.no/

Sweden - http://www.artportalen.se/

Finland - https://laji.fi/

Belgium - https://waarnemingen.be/

Netherlands - https://waarneming.nl/

Table last updated: 20.29 7 November 2022

Date	UK (Atropos and Twitter)	Belgium	Netherlands	Sweden	Norway	Finland	Syngenta Trapview Network - Lincs (average catch)	Pheromone traps Wellesbourne (2 traps)
22 November								1
15 November								1
8 November								0
6 November	6 (2)	0	0	2	0	0	-
5 November	3 (4)	5	3	0	0	0	-
4 November	0 (0)	0	2	0	1	0	-
3 November	0 (0)	4	5	0	2	0	-
2 November	0 (0)	6	1	0	0	0	-
1 November	0 (0)	2	6	0	0	0	-
31 October	0 (0)	25	11	0	1	0	-	1
30 October	2 (0)	64	21	4	0	0	-
29 October	14 (1)	102	58	1	4	0	-
28 October	5 (6)	68	66	0	2	0	-
27 October	3 (7)	43	34	1	2	0	-
26 October	6 (3)	45	39	1	0	0	-
25 October	1 (1)	18	29	0	0	0	-	0
24 October	1 (1)	66	13	0	1	0	-
23 October	0 (0)	99	7	1	1	0	0.1
22 October	11 (7)	40	45	1	2	0	0.1
21 October	0 (5)	33	28	1	2	1	0.1	2
20 October	4 (4)	13	14	0	6	0	0
19 October	10 (13)	10	10	0	0	0	0.1
18 October	2 (0)	11	19	0	0	0	0.1	3
17 October	0 (0)	19	16	1	0	0	0.6
16 October	1 (2)	11	14	1	0	0	0.4
15 October	0 (0)	7	8	0	2	1	0.5
14 October	0 (0)	15	9	2	0	1	0.4	0
13 October	0 (0)	6	1	1	2	2	0.4
12 October	0 (0)	2	2	3	1	0	0.4
11 October	0 (0)	1	2	2	0	0	0.2	2
10 October	0 (0)	4	5	2	0	0	0.4
9 October	0 (1)	4	3	1	6	1	0.6
8 October	0 (0)	4	2	0	1	0	0.2
7 October	0 (0)	7	1	4	2	1	0.1	0
6 October	0 (0)	4	3	1	1	0	0.4
5 October	0 (0)	4	3	0	2	0	0.6
4 October	0 (0)	15	6	5	3	0	0.3
3 October	1 (1)	13	9	1	2	0	0.8	0
2 October	1 (0)	4	7	4	6	0	0.8
1 October	0 (0)	5	4	1	7	0	1.3
30 September	0 (0)	9	2	2	9	2	0.1	0
29 September	0 (0)	2	10	1	57	0	0.6
28 September	0 (0)	2	9	1	19	1	0.8
27 September	0 (0)	2	3	1	13	0	0.2
26 September	0 (0)	0	2	1	6	0	0.5	0
25 September	0 (0)	7	0	3	3	2	1.0
24 September	0 (0)	9	9	3	23	0	2.0
23 September	0 (0)	20	3	1	6	1	1.8
22 September	0 (0)	6	12	4	7	2	2.4	0
21 September	0 (0)	14	6	1	6	0	2.0
20 September	1 (0)	7	4	3	2	0	1.2
19 September	2 (0)	6	9	1	0	0	1.1	0
18 September	0 (0)	5	3	0	1	0	1.5
17 September	1 (6)	4	1	8	3	0	1.4
16 September	0 (0)	2	2	4	4	1	0.6	0
15 September	0 (1)	9	6	1	2	0	0.7
14 September	1 (0)	15	7	1	3	2	0.3
13 September	13 (0)	15	14	1	4	1	0.3
12 September	14 (3)	38	42	1	5	1	0.3	0
11 September	1 (0)	25	63	6	3	2	0.7
10 September	1 (10)	22	30	7	12	2	0.3
9 September	0 (0)	7	31	7	19	10	0.5
8 September	1 (0)	18	21	3	14	2	0.3	0
7 September	0 (0)	25	21	4	9	1	0.3
6 September	0 (1)	28	46	7	11	1	0.5
5 September	1 (0)	20	63	17	106	7	0.2	0
4 September	1 (0)	21	52	6	52	0	0.7
3 September	4 (0)	25	74	6	14	0	0.2
2 September	10 (0)	67	58	9	12	1	0
1 September	2 (0)	36	60	9	4	1	0.2	0
31 August	0 (0)	45	55	8	11	0	0.8
30 August	1 (0)	44	44	10	17	2	0.4
29 August	0 (0)	19	39	33	9	4	1.5	1
28 August	0 (0)	24	30	10	10	4	0.8
27 August	1 (4)	25	32	25	12	15	2.6
26 August	0 (0)	15	41	47	12	37	1.9
25 August	0 (1)	36	42	19	21	5	2.4	1
24 August	0 (0)	52	103	36	24	12	2.5
23 August	0 (3)	51	83	12	10	6	3.2
22 August	1 (5)	51	85	28	19	12	4.6	0
21 August	0 (2)	41	93	11	4	9	2.5
20 August	0 (1)	39	61	12	9	10	6.6
19 August	3 (0)	39	78	25	2	6	7.5	0
18 August	1 (6)	22	63	22	8	9	3.3
17 August	2 (4)	42	101	33	2	6	2.6
16 August	0 (0)	39	74	10	6	3	3.0
15 August	54 (0)	29	88	20	11	8	1.4	0
14 August	16 (16)	88	107	22	2	8	1.3
13 August	2 (2)	60	167	23	1	3	0.8
12 August	19 (3)	46	204	15	1	2	1.0
11 August	0 (2)	54	109	14	4	4	0.5	0
10 August	1 (3)	48	111	19	1	6	1.4
9 August	0 (0)	40	75	17	4	3	1.4	0
8 August	0 (0)	32	85	11	8	14	2.5
7 August	3 (3)	19	80	11	1	1	2.2
6 August	0 (0)	28	97	7	3	2	3.0
5 August	0 (1)	26	45	12	2	5	3.3	0
4 August	0 (0)	56	121	21	3	4	1.8
3 August	0 (2)	62	148	55	4	5	4.9
2 August	0 (0)	47	141	19	2	3	5.6	0
1 August	2 (0)	64	104	23	1	2	1.4
31 Jul	21 (1)	76	149	33	1	2	2.5
30 Jul	3 (0)	85	118	55	2	1	0.8
29 Jul	1 (0)	63	174	19	2	5	4.0	0
28 Jul	0 (3)	84	117	31	1	1	1.7
27 Jul	0 (2)	42	149	17	4	3	1.6
26 July	0 (0)	47	89	18	2	2	1.2
25 July	0 (0)	42	124	5	1	0	2.9	0
24 July	0 (0)	63	218	15	3	4	1.5
23 July	0 (0)	73	217	35	1	4	2.6
22 July	0 (0)	74	194	18	1	4	4.2	1
21 July	1 (0)	43	183	20	1	1	1.4
20 July	3 (0)	11	55	17	2	0	8.3
19 July	0 (2)	77	170	21	3	1	3.6	1
18 July	1 (0)	97	284	2	0	0	1.4
17 July	0 (3)	42	241	6	0	2	1.1
16 July	1 (0)	42	160	6	2	0	1.8
15 July	0 (0)	58	145	5	0	0	3.7
14 July	0 (0)	22	106	7	2	0	3.5	0
13 July	0 (0)	52	101	2	1	0	2.3
12 July	0 (0)	69	138	18	2	1	6.3
11 July	0 (0)	22	105	11	6	3	7.1	0
10 July	0 (0)	27	104	6	4	0	3.9
9 July	0 (0)	28	81	13	1	1	3.1
8 July	0 (0)	48	68	7	6	2	6.3
7 July	0 (0)	32	98	57	12	1	5.9	0
6 July	21 (0)	76	75	11	10	0	9.1
5 July	0 (0)	49	66	11	8	2	6.1
4 July	0 (0)	28	55	8	8	3	4.7	0
3 July	2 (0)	31	57	7	5	4	7.2
2 July	0 (0)	78	115	28	12	1	5.5
1 July	4 (0)	39	185	17	7	2	3.8
30 June	1 (6)	15	102	14	16	0	5.4	2
29 June	0 (0)	35	92	19	19	2	4.4
28 June	0 (2)	77	118	36	29	2	8.2	2
27 June	0 (1)	38	88	18	22	3	10.3
26 June	0 (0)	33	123	27	19	5	11
25 June	0 (0)	44	168	25	6	3	7.3
24 June	0 (0)	26	104	14	6	0	2.9	0
23 June	0 (16)	74	107	11	6	1	3.5
22 June	6 (2)	78	141	4	2	1	7.5
21 June	0 (0)	57	113	5	5	1	9.6	0
20 June	5 (0)	54	115	12	4	0	9
19 June	0 (0)	77	77	6	3	0	10.3
18 June	10 (0)	58	73	6	6	1	5.6
17 June	17 (6)	61	102	3	3	1	12.5	0
16 June	5 (10)	54	133	3	8	1	15.1
15 June	0 (0)	27	78	9	3	1	7.4
14 June	1 (0)	22	86	11	2	1	6.3	0
13 June	0 (5)	19	45	1	1	2	7.3
12 June	0 (0)	28	65	2	6	0
11 June	0 (0)	45	148	8	5	1
10 June	0 (0)	66	220	0	8	1		1
9 June	12 (0)	234	222	18	0	3
8 June	1 (0)	35	260	11	6	1
7 June	25 (61)	37	125	16	2	0		2
6 June	14 (4)	37	211	8	7	0
5 June	4 (0)	157	123	9	1	2
4 June	4 (12)	59	143	5	14	0
3 June	75 (62)	118	166	3	4	0
2 June	0 (23)	41	171	2	6	2
1 June	0 (0)	17	122	1	6	0
31 May	0 (0)	17	59	5	3	0		0
30 May	1 (2)	36	59	12	4	0
29 May	0 (0)	9	47	2	4	0
28 May	0 (0)	9	28	7	4	0
27 May	7 (0) 2*	31	50	2	7	1		1
26 May	0 (0)	59	98	0	10	0
25 May	0 (0)	41	150	3	12	0
24 May	1 (1)	39	107	1	14	0		0
23 May	0 (0)	23	101	2	15	0
22 May	12 (2)	62	152	10	5	0
21 May	6 (0)	47	233	3	4	0
20 May	0 (0)	68	161	1	6	0		0
19 May	6 (3)	32	101	0	32	0
18 May	7 (5)	26	144	3	10	0
17 May	0 (4)	37	69	0	2	0		1
16 May	2 (14)	32	78	0	0	0
15 May	6 (4)	6	7	0	0	0
14 May	0 (0)	4	19	0	0	0
13 May	0 (0)	0	10	0	0	0
12 May	0 (0)	4	11	0	0	0
11 May	0 (0)	1	8	0	0	0
10 May	0 (0)	2	6	0	0	0
9 May	1 (0)	4	5	0	0	0
8 May	0 (0)	3	1	0	0	0
7 May	0 (0)	0	2	0	0	0
6 May	0 (0)	8	0	0	0	0
5 May	1 (0)	1	4	0	0	0
4 May	0 (0)	1	1	0	0	0
3 May	0 (0)	0	1	0	0	0
2 May	0 (0)	0	0	0	0	0
1 May	0 (0)	1	0	0	0	0
30 Apr	0 (0)	0	2	0	0	0
29 Apr	0 (1)	1	0	0	0	0
28 Apr	0 (0)	0	1	0	0	0
27 Apr	1 (0)	0	2	0	0	0
26 Apr	0 (0)	0	2	0	0	0
25 Apr	0 (0)	0	0	0	0	0
24 Apr	0 (0)	0	0	0	0	0
23 Apr	0 (0)	0	1	0	0	0
22 Apr	0 (0)	2	1	0	0	0
21 Apr	0 (0)	0	0	0	0	0
20 Apr	0 (0)	1	0	0	0	0
19 Apr	1 (0)	0	0	0	0	0
18 Apr	0 (0)	0	0	0	0	0
17 Apr	0 (0)	0	2	0	0	0
16 Apr	0 (0)	0	1	0	0	0
15 Apr	0 (0)	0	1	0	0	0
14 Apr	1 (0)	1	0	0	0	0
13 Apr	5 (0)	0	0	0	0	0
12 Apr	1 (1)	0	0	0	0	0
11 Apr	1 (1)	1	0	0	0	0

Disclaimer

While the University or Warwick and the Agriculture and Horticulture Development Board seek to ensure that the information contained within this document is accurate at the time of production, no warranty is given in respect thereof and, to the maximum extent permitted by law, these organisations accept no liability for loss, damage or injury howsoever caused (including that caused by negligence) or suffered directly or indirectly in relation to information and opinions contained in or omitted from this document.

Because of the biological nature of the work it must be borne in mind that different circumstances and conditions could produce different results. Therefore, care must be taken with interpretation of the results, especially if they are used as the basis for commercial product recommendations.

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Silver Y moth biology