Migrant moth sightings 2017

Below are records of sightings of migrant moths that are pests of UK vegetable and salad crops - total number seen each day. 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

Table last updated: 5:00 pm 30th October 2017

N.B. moth counts on the monitoring websites (below) are updated continuously.

Diamond-back moth

Silver Y moth

Belgium

Netherlands

Sweden

Norway

Finland

Belgium

Netherlands

Sweden

Norway

Finland

30 Oct

0 (0)

29 Oct

0 (0)

0 (2)

28 Oct

0 (0)

42 (0)

27 Oct

0 (0)

17 (0)

26 Oct

1 (1*)

11 (1)

12*

25 Oct

1 (0)

28 (16)

24 Oct

2 (0)

24 (12)

23 Oct

3 (0)

17 (20)

22 Oct

1 (0)

3 (0)

21 Oct

0 (0)

20 Oct

1 (0)

1 (2*)

19 Oct

1 (0)

9 (6)

18 Oct

2 (1*)

(4)

14*

17 Oct

1 (0)

7 (1*)

16 Oct

0 (0)

1 (1*)

15 Oct

2 (1*)

14 (9*)

14 Oct

2 (0)

10 (5)

13 Oct

1 (0)

15 (4*)

12 Oct

0 (0)

6 (2*)

11 Oct

0 (0)

1 (1*)

10 Oct

0 (0)

9 Oct

1 (0)

1 (4*)

8 Oct

0 (0)

4 (2*)

7 Oct

0 (0)

6 Oct

0 (0)

4 (0)

5 Oct

0 (0)

1 (0)

4 Oct

1 (1) 1*

3 Oct

0 (0)

2 Oct

0 (0)

3 (1)

1 Oct

2 (0)

10 (1*)

30 Sep

0 (0)

17 (0)

29 Sep

1 (0)

12 (0)

28 Sep

1 (0)

6 (0)

27 Sep

5 (0)

26 Sep

4 (0)

16 (20)

25 Sep

1 (0)

18 (6) 5*

24 Sep

0 (0)

16 (0)

23 Sep

0 (0)

23 (0)

22 Sep

1 (0)

1* (6)

21 Sep

0 (0)

1 (3*)

20 Sep

1 (0)

1 (1) 1*

19 Sep

1 (1)

18 Sep

0 (0)

1 (0)

17 Sep

0 (0)

1 (2)

16 Sep

0 (0)

4 (1)

15 Sep

0 (0)

14 Sep

0 (0)

0 (1)

13 Sep

0 (0)

12 Sep

0 (0)

11 Sep

0 (0)

10 Sep

0 (0)

9 Sep

0 (0)

0 (1)

8 Sep

0 (0)

7 Sep

0 (0)

2 (0)

6 Sep

1 (0)

10 (0)

5 Sep

1 (0)

11 (8)

4 Sep

2 (0)

27 (1)

3 Sep

1 (0)

5 (1)

2 Sep

0 (0)

0 (2)

1 Sep

0 (0)

0 (2)

31 Aug

0 (0)

30 Aug

0 (0)

29 Aug

0 (0)

5 (2)

28 Aug

0 (0)

5 (0)

27 Aug

0 (0)

26 Aug

0 (0)

1 (0)

25 Aug

0 (0)

5 (0)

24 Aug

0 (0)

0 (1)

23 Aug

0 (0)

2 (0)

22 Aug

3 (0)

9 (3)

21 Aug

0 (0)

2 (2)

20 Aug

0 (0)

6 (4)

19 Aug

0 (0)

0 (1)

18 Aug

0 (0)

17 Aug

0 (0)

11 (1)

16 Aug

1 (0)

12 (7)

15 Aug

5 (0)

11 (0)

14 Aug

0 (0)

2 (0)

13 Aug

0 (0)

3 (0)

12 Aug

0 (0)

11 Aug

3 (0)

5 (1)

19*

10 Aug

0 (0)

9 Aug

0 (0)

8 Aug

0 (0)

0 (28)

7 Aug

0 (0)

6 Aug

0 (0)

0 (1)

5 Aug

0 (0)

0 (1)

4 Aug

1 (0)

30*

3 Aug

0 (0)

2 Aug

0 (0)

0 (1)

1 Aug

5 (0)

(1)

45*

31 Jul

5 (0)

56*

30 Jul

0 (0)

29 Jul

0 (0)

2 (25)

120

28 Jul

0 (0)

27 Jul

1 (0)

52 (0)

26 Jul

6 (0)

55 (0)

25 Jul

0 (0)

24 Jul

0 (0)

23 Jul

2 (1)

(1)

80*

22 Jul

3 (0)

51 (15)

110

21 Jul

0 (0)

6 (22)

156

20 Jul

6 (1)

(4)

78*

19 Jul

16 (2)

(49)

96*

111

18 Jul

1 (0)

6 (1)

17 Jul

0 (1)

0 (3)

114

16 Jul

3 (0)

7 (0)

112

15 Jul

0 (0)

0 (52)

160

14 Jul

0 (0)

210

136* (177)

13 Jul

8 (0)

2 (48*)

107

12 Jul

0 (0)

11 Jul

0 (0)

0 (1)

10 Jul

0 (1)

6 (1)

124

9 Jul

0 (0)

0 (1)

120

8 Jul

0 (0)

125

7 Jul

2* (1)

12* (13)

183

6 Jul

0 (4)

0 (8)

108

5 Jul

0 (1)

0 (2)

101

4 Jul

0 (0)

0 (1)

122

120

3 Jul

0 (3)

15 (0)

2 Jul

0 (0)

0 (2)

1 Jul

4 (9)

5 (9)

30 Jun

5 (0)

28 (1)

29 Jun

14 (1)

17 (1)

135

28 Jun

17 (121)

36 (32)

27 Jun

3 (177)

1 (20)

26 Jun

0 (0)

25 Jun

0 (0)

1 (0)

24 Jun

0 (0)

23 Jun

4 (13*)

1 (4*)

22 Jun

0 (2)

21 Jun

9 (25*)

0 (1)

20 Jun

0 (0)

(1*)

19 Jun

0 (7)

0 (1)

18 Jun

0 (0)

17 Jun

0 (0)

0 (1)

16 Jun

(12*)

0 (0)

15 Jun

0 (0)

14 Jun

0 (0)

13 Jun

0 (0)

12 Jun

0 (0)

11 Jun

0 (0)

0 (3)

10 Jun

0 (0)

1 (0)

9 Jun

0 (0)

0 (5)

8 Jun

3 (0)

6 (0)

7 Jun

8 (0)

4 (15)

6 Jun

0 (0)

5 Jun

0 (0)

4 Jun

0 (0)

3 Jun

54 (0)

14 (0)

2 Jun

13 (0)

5 (0)

1 Jun

6 (14)

2 (0)

31 May

23 (3)

6 (7)

30 May

22 (110)

17 (6)

29 May

33 (176)

51 (33)

28 May

6 (4)

25 (4)

27 May

4 (0)

12 (7)

26 May

0 (0)

2 (1)

25 May

0 (0)

24 May

2 (4)

1 (6)

Sources of information:

UK - Atropos and (Twitter) * = 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/

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.

Life Sciences Warwick Crop Centre

Migrant moth sightings 2017

Sources of information:

@warwickpestnews on X