Effects of reduced pesticide use on flora and....., Danish Environmental Protection Agency

Effects of reduced pesticide use on flora and fauna in agricultural fields

Appendix D.
Percentages of cereal ears and beet plants with Aphididae before and after insecticide application. The dominant aphid species were in wheat and barley Sitobion avenae, Rhopalosiphum padi and in beet Aphis fabae.

1997	Wheat				Barley				Beets
1997	Date	Normal	Half	Quarter	Date	Normal	Half	Quarter	Date	Normal	Half	Quarter
Gjorslev	25 June	12	12	19	25 June	7	11	3
	7 July	Pirimor			9 July	Pirimor
	14 July	13	20	53	14 July	2	1	6
Oremands-gård	24 June	2	1	5	23 June	0	0	3
	7 July	Pirimor			25 June	Karate
	16 July	5	13	56	16 July	4	6	10
Lekkende	24 Jun	1	5	8	25 June	Decis			Aphid populations in beet 1997 were minor and no aphid specific insecticide applications were conducted.
	25 June	Decis			25 June	0	0	1
	16 July	32	49	47	16 July	5	6	10
Nøbølle	18 June	3	9	12	25 June	15	17	19
	26 June	18	31	26	28 June	6	4	3
	2 July	Pirimor			-	No insecticide application
	28 July	3	2	3
Nordfeld	24 June	25	14	10	18 June	Sumi-Alpha 5 FW
	26 June	Sumi-Alpha 5 FW			26 June	4	3	3
	28 July	45	52	42	28 July	1	2	3
1998	Wheat				Barley				Beets
1998	Date	Normal	Half	Quarter	Date	Normal	Half	Quarter	Date	Normal	Half	Quarter
Gjorslev	13 June	44	30	47	11 June	58	73	90	8 July	38	45	60
	24 June	Pirimor			11 June	Pirimor			8 July	Karate
	2 July	65	83	99	24 June	1	4	33	22 July	49	62	63
	13 July	20	21	63	13 July	10	19	14	24 July	Pirimor
									28 July	8	13	10
Oremands-gård	15 june	55	39	43	15 June	98	100	100	13 July	3	1	4
	23 June	Mavrik			16 June	Pirimor/Mavrik 2F			22 July	Pirimor
	29 June	45	55	73	29 June	3	6	16	28 July	0	0	0
	13 July	2	17	47	13 July	0	0	12
Lekkende	11 June	Decis			13 June	58	39	46	8 July	13	8	4
	13 June	13	27	19	24 June	Decis			17 July	Pirimor
	3 July	Decis			13 July	17	27	43	28 July	0	0	0
	13 July	2	5	0
Nøbølle	12 June	25	20	33	5 June	Sumi-Alpha 5 FW			15 July	6	16	26
	15 June	Sumi-Alpha 5 FW			12 june	2	4	26	-	No insecticide application
	24 June	24	44	51	26 June	Pirimor
	15 July	19	21	51	15 July	0	0	1
Nordfeld	12 June	44	52	50	12 June	42	46	52	15 July	74	77	74
	14 June	DLG Dimethoat			14 June	DLG Dimethoat			17 July	DLG Dimethoat
	23 June	16	50	25	23 June	4	11	42	27 July	82	77	73
	15 July	31	23	39	15 July	9	4	5

continues

Appendix D
continued.

1999	Wheat				Barley				Beets
1999	Date	Normal	Half	Quarter	Date	Normal	Half	Quarter	Date	Normal	Half	Quarter
Gjorslev	14 June	11	17	20	14 June	14	27	41	23 June	1	2	4
	15 June	Mavrik 2F			17 June	Mavrik 2F			30 June	16	13	16
	23 June	15	26	33	23 June	79	80	77	7 July	38	38	45
	30 June	16	29	35	30 June	6	22	22	7 July	Pirimor
					05 July	6	9	9	14 July	8	8	14
Oremands-gård	14 June	3	2	4	14 June	7	8	16	23 June	2	3	2
	15 June	Mavrik 2F			16 June	Mavrik 2F			30 June	8	7	9
	23 June	3	3	3	23 june	11	7	7	7 July	27	21	24
	30 June	0	3	5	30 June	0	1	0	14 July	57	84	89
									-	No insecticide application
Lekkende	16 June	4	5	2	16 June	15	17	14	23 June	0	0	0
	16 June	Mavrik 2F			16 June	Sumi Alpha 5 FW			30 June	17	26	16
	23 June	0	0	0	23 June	6	22	4	7 July	28	33	9
	30 June	5	10	9	30 June	2	4	8	13 July	Pirimor
									22 July	0	2	1
Nøbølle	15 june	Pirimor			14 June	32	57	63	23 June	0	2	0
	16 June	10	14	9	14 June	Pirimor			30 June	7	22	14
	23 June	64	39	48	23 June	19	40	92	7 July	56	73	47
	30 June	73	87	80	30 June	2	9	45	7 July	Pirimor
	05 July	38	22	20					14 July	4	3	2
Nordfeld	14 June	7	3	6	14 June	39	55	57	23 June	4	3	2
	15 June	Mavrik 2F			15 June	Mavrik 2F			30 June	20	8	5
	23 June	4	20	25	23 June	53	81	80	7 July	35	23	28
	30 June	21	27	29	30 June	0	6	10	14 July	77	93	95
									-	No insecticide application