International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
Herbicide Resistant Weeds by Country and Site of Action
(click on a column header to sort or click on a country for details)
#CountryTotalABC1C2DGK1OOther
1 Argentina283500016040
2 Australia891427001121349
3 Austria2020000000
4 Belgium14250030103
5 Bolivia8420001001
6 Brazil4772000111035
7 Bulgaria1000000100
8 Canada504250036165
9 Chile165100001000
10 China408170052053
11 Colombia13240014011
12 Costa Rica7140002000
13 Cyprus2110000000
14 Czech Republic5040001000
15 Denmark13480000100
16 Ecuador0000000000
17 Egypt3110010000
18 El Salvador0000000000
19 Ethiopia1100000000
20 Fiji1000010000
21 Finland2020000000
22 France326220003010
23 Germany165110000000
24 Greece14350004011
25 Guatemala0000000000
26 Honduras0000000000
27 Hungary3010001010
28 India3120000000
29 Indonesia3000011010
30 Iran13750000010
31 Ireland2110000000
32 Israel246140002002
33 Italy258110004011
34 Japan352210073200
35 Jordan1000010000
36 Kazakhstan1010000000
37 Kenya1000010000
38 Latvia2020000000
39 Lithuania1010000000
40 Malaysia21160072041
41 Mexico11320006000
42 Netherlands2110000000
43 New Zealand19330022054
44 Nicaragua1100000000
45 Norway7070000000
46 Pakistan1100000000
47 Panama0000000000
48 Paraguay7120013000
49 Philippines1000000010
50 Poland13380001010
51 Portugal4010003000
52 Russia1010000000
53 Saudi Arabia1100000000
54 Serbia4130000000
55 Slovenia0000000000
56 South Africa13350023000
57 South Korea173130001000
58 Spain222100008011
59 Sri Lanka1000010000
60 Sweden8160000010
61 Switzerland5220001000
62 Syria3300000000
63 Taiwan1000010000
64 Thailand3200000010
65 Tunisia1100000000
66 Turkey196110001010
67 Ukraine2020000000
68 United Kingdom18480020112
69 United States12215540061761014
70 Uruguay2010000010
71 Venezuela10270001000
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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Tuesday, September 21, 2021 .  Available  www.weedscience.org
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