Herbicide Resistant Weeds by Country and Site of Action (click on a column header to sort or click on a country for details)

#	Country	Total	A	B	C1	C2	D	G	K1	O	Other
1	Algeria	2	1	1	0	0	0	0	0	0	0
2	Argentina	39	5	8	0	0	0	20	0	4	2
3	Australia	91	14	27	0	0	11	21	3	4	11
4	Austria	4	0	4	0	0	0	0	0	0	0
5	Belgium	14	2	5	0	0	3	0	1	0	3
6	Bolivia	14	6	2	0	0	1	4	0	0	1
7	Brazil	53	9	21	0	0	1	12	0	4	6
8	Bulgaria	1	0	0	0	0	0	0	1	0	0
9	Canada	56	5	25	0	0	3	8	1	7	7
10	Chile	16	5	10	0	0	0	1	0	0	0
11	China	50	10	23	0	0	5	2	0	6	4
12	Colombia	14	2	4	0	0	1	5	0	1	1
13	Costa Rica	7	1	4	0	0	0	2	0	0	0
14	Cyprus	2	1	1	0	0	0	0	0	0	0
15	Czech Republic	6	0	5	0	0	0	1	0	0	0
16	Denmark	13	4	8	0	0	0	0	1	0	0
17	Dominican Republic	11	6	5	0	0	0	0	0	0	0
18	Ecuador	0	0	0	0	0	0	0	0	0	0
19	Egypt	3	1	1	0	0	1	0	0	0	0
20	El Salvador	0	0	0	0	0	0	0	0	0	0
21	Estonia	1	0	1	0	0	0	0	0	0	0
22	Ethiopia	1	1	0	0	0	0	0	0	0	0
23	Fiji	1	0	0	0	0	1	0	0	0	0
24	Finland	2	0	2	0	0	0	0	0	0	0
25	France	37	7	23	0	0	0	4	0	1	2
26	Germany	17	5	12	0	0	0	0	0	0	0
27	Greece	16	3	7	0	0	0	4	0	1	1
28	Guatemala	0	0	0	0	0	0	0	0	0	0
29	Honduras	0	0	0	0	0	0	0	0	0	0
30	Hungary	3	0	1	0	0	0	1	0	1	0
31	India	5	1	4	0	0	0	0	0	0	0
32	Indonesia	4	0	1	0	0	1	1	0	1	0
33	Iran	13	7	5	0	0	0	0	0	1	0
34	Ireland	9	4	5	0	0	0	0	0	0	0
35	Israel	25	6	15	0	0	0	2	0	0	2
36	Italy	29	8	15	0	0	0	4	0	1	1
37	Japan	35	2	21	0	0	7	3	2	0	0
38	Jordan	3	0	0	0	0	2	0	0	0	1
39	Kazakhstan	1	0	1	0	0	0	0	0	0	0
40	Kenya	1	0	0	0	0	1	0	0	0	0
41	Latvia	2	0	2	0	0	0	0	0	0	0
42	Lithuania	1	0	1	0	0	0	0	0	0	0
43	Malaysia	21	1	6	0	0	7	2	0	4	1
44	Mexico	18	3	4	0	0	0	9	0	1	1
45	Morocco	4	1	2	0	0	0	0	0	1	0
46	Netherlands	2	1	1	0	0	0	0	0	0	0
47	New Zealand	24	3	6	0	0	2	3	0	5	5
48	Nicaragua	1	1	0	0	0	0	0	0	0	0
49	Norway	7	0	7	0	0	0	0	0	0	0
50	Pakistan	3	2	1	0	0	0	0	0	0	0
51	Panama	0	0	0	0	0	0	0	0	0	0
52	Paraguay	11	1	3	0	0	1	5	0	0	1
53	Philippines	1	0	0	0	0	0	0	0	1	0
54	Poland	13	3	8	0	0	0	1	0	1	0
55	Portugal	13	1	5	0	0	0	5	0	1	1
56	Russia	1	0	1	0	0	0	0	0	0	0
57	Saudi Arabia	1	1	0	0	0	0	0	0	0	0
58	Serbia	4	1	3	0	0	0	0	0	0	0
59	Slovenia	0	0	0	0	0	0	0	0	0	0
60	South Africa	17	3	6	0	0	3	5	0	0	0
61	South Korea	17	3	13	0	0	0	1	0	0	0
62	Spain	31	3	13	0	0	0	12	0	2	1
63	Sri Lanka	1	0	0	0	0	1	0	0	0	0
64	Sweden	8	1	6	0	0	0	0	0	1	0
65	Switzerland	8	2	3	0	0	0	3	0	0	0
66	Syria	3	3	0	0	0	0	0	0	0	0
67	Taiwan	1	0	0	0	0	1	0	0	0	0
68	Thailand	4	2	0	0	0	0	0	0	1	1
69	Tunisia	4	1	2	0	0	0	0	0	1	0
70	Turkey	21	6	12	0	0	0	2	0	1	0
71	Ukraine	6	0	5	0	0	0	0	0	0	1
72	United Kingdom	21	4	11	0	0	2	0	1	1	2
73	United States	138	17	57	0	0	7	18	6	11	22
74	Uruguay	7	0	2	0	0	0	4	0	1	0
75	Venezuela	10	2	7	0	0	0	1	0	0	0
76	Viet Nam	2	0	1	0	0	0	0	0	0	1

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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Wednesday, June 10, 2026 .  Available  www.weedscience.org
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