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Captures of silver Y moths in pheromone traps in 2019

This year several UK brassica growers are monitoring diamond-back moths in their crops using pheromone traps. Some are also monitoring silver Y moths. The results will be summarised on this web page.

If anyone else would like to contribute monitoring data to this site please contact rosemary.collier@warwick.ac.uk.

See also the Syngenta Brassica Alert which has information on pest activity in Lincolnshire crops.

The table below summarises the numbers of moths captured in pheromone traps in commercial brassica crops since late June.
Date Location Number of moths Number of traps Number of moths per trap
7 October Wellesbourne

0

2 0
4 October Lincolnshire

0

4 0
4 October Wellesbourne

1

2 0.5
1 October Wellesbourne

1

2 0.5
27 September Lincolnshire

0

4 0
27 September Wellesbourne

0

2 0
24 September Wellesbourne

0

2 0
20 September Wellesbourne

0

2 0
20 September Lincolnshire

0

4 0
17 September Wellesbourne

0

2 0
16 September Scotland (Fife and Angus)

1

2 0.5
13 September Lincolnshire

2

2 1
13 September Wellesbourne

0

4 0
10 September Wellesbourne

1

2 0.5
9 September Scotland (Fife and Angus)

3

2 1.5
6 September Wellesbourne

0

2 0
6 September Lincolnshire

0

4 0
3 September Wellesbourne

0

2 0
2 September Scotland (Fife and Angus)

2

2 1
30 August Lincolnshire

0

4 0
30 August Wellesbourne

0

2 0
27 August Wellesbourne

0

2 0
23 August Lincolnshire

10

4 2.5
26 August Scotland (Fife and Angus)

3

2 1.5
23 August Wellesbourne

0

2 0
20 August Wellesbourne

0

2 0
19 August Scotland (Fife and Angus)

6

2 3
16 August Lincolnshire

18

4 4.5
16 August Wellesbourne

1

2 0.5
13 August Wellesbourne

7

2 3.5
12 August Scotland (Fife and Angus)

14

2 7
9 August Lincolnshire

13

4 3.25
9 August Wellesbourne

3

2 1.5
6 August Wellesbourne

2

2 1
5 August Scotland (Fife and Angus)

5

2 2.5
2 August Lincolnshire

22

4 5.5
2 August Wellesbourne

0

2 0
30 July Wellesbourne

0

2 0
29 July Scotland (Fife and Angus)

10

2 5
26 July Lincolnshire

44

4 11
26 July Wellesbourne

0

2 0
23 July Wellesbourne

1

2 0.5
22 July Scotland (Fife and Angus)

24

3 8
19 July Lincolnshire

Spalding 21

Old Leake 25

4 (2 per site) 11.5
19 July Wellesbourne

0

2 0
16 July Wellesbourne

0

2 0
15 July Scotland (Fife and Angus)

93

4 23.3
12 July Lincolnshire

Spalding 16

Old Leake 37

4 (2 per site) 14.25
12 July Wellesbourne 0 2 0
9 July Wellesbourne 0 2 0
8 July Scotland (Fife and Angus) 27 3 9
5 July Wellesbourne 0 2 0
2 July Wellesbourne 0 2 0
1 July Scotland (Fife and Angus) 13 3 4.3
28 June Wellesbourne 0 2 0
25 June Wellesbourne 0 2 0
24 June Scotland (Fife and Angus) 2 2 1