Yellow water traps and cabbage root fly eggs at Wellesbourne 2023

These are the numbers of pest insects captured in yellow water traps at Wellesbourne and numbers of cabbage root fly eggs laid on 15 cauliflower plants.

CRF = cabbage root fly; CSFB = cabbage stem flea beetle

Date	CRF males	CRF females	CRF eggs (15 plants)	Bean seed flies	Pollen beetle	Flea beetles	Brassica weevils	CSFB
3 November	2	0	0	23	1	1	0	0
31 October	7	4	0	10	0	1	3	0
27 October	10	6	0	11	2	4	8	1
24 October	8	7	0	26	4	1	10	0
20 October	3	1	1	14	0	0	0	0
17 October	13	10	1	21	2	2	0	0
13 October	3	3	8	16	0	4	0	3
10 October	6	7	1	12	1	12	31	4
6 October	0	5	1	13	1	7	1	0
3 October	5	5	1	7	0	11	9	7
29 September	5	13	14	8	0	8	0	1
26 September	24	46	10	28	2	14	1	1
22 September	50	106	26	30	0	12	0	0
19 September	114	152	40	30	1	13	0	1
15 September	87	83	76	23	0	21	0	1
12 September	78	55	65	28	2	35	0	2
8-September	16	24	34	26	1	61	0	4
5-September-23	40	57	62	21	3	81	0	3
1-September-23	72	116	155	25	0	41	0	0
29-August-23	158	169	105	16	3	46	2	0
25-August-23	187	184	7	16	7	80	0	1
22-August-23	168	128	32	37	3	119	1	1
18-August-23	85	49	62	22	7	66	1	0
15-August-23	128	48	117	11	4	57	2	1
11-August-23	103	35	22	17	12	42	0	2
8-August-23	134	46	40	29	46	36	1	0
4-August-23	53	26	14	15	133	43	5	0
1-August-23	57	42	49	20	68	61	4	7
28-July-23	52	60	88	26	203	66	18	6
25-July-23	39	128	77	27	199	41	35	5
21-July-23	16	71	150	37	548	36	102	1
18-July-23	27	106	62	19	149	11	16	0
14-July-23	60	87	333	16	226	27	17	2
11-July-23	56	99	605	24	232	54	57	7
7-July-23	50	57	164	17	169	11	20	0
4-July-2023	34	22	184	28	63	5	4	0
30-Jun-23	23	11	65	4	225	29	35	0
27-Jun-23	27	19	23	10	74	26	13	0
23-Jun-23	13	8	39	4	109	148	13	0
20-Jun-23	3	5	35	4	5	177	8	0
16-Jun-23	2	10	11	3	3	156	17	0
13-Jun-23	3	5	0	4	2	159	15	1
9-Jun-23	3	5	0	11	2	14	0	0
6-Jun-23	0	0	0	2	2	10	2	0
2-Jun-23	2	2	2	27	0	0	0	0
30-May-23	2	4	15	15	1	27	4	0
26-May-23	1	2	8	6	2	11	5	0
23-May-23	3	9	9	15	0	10	7	6
19-May-23	34	16	42	48	20	57	22	6
16-May-23	0	3	68	5	18	0	2	2
12-May-23	16	3	47	5	10	0	2	0
09-May-23	137	28	60	65	50	0	11	0
05-May-23	41	9	71	5	12	0	2	0
02-May-23	191	28	-	118	213	0	12	0
25-Apr-23	125	9	-	77	15	0	5	0
18-Apr-23	67	12	-	65	40	0	14	0
11-Apr-23	16	5	-	69	176	0	25	0
04-Apr-23	1	0	-	81	168	0	7	0
28-Mar-23	0	1	-	9	14	0	6	0
21-Mar-23	0	0	-	14	25	0	18	0
14-Mar-23	0	0	-	14	0	0	0	0