Pesticide usage in Scotland: arable crops and potato stores 2016

This publication presents information from a survey of pesticide use on arable crops and potato stores in Scotland during 2016.

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Table 36 Mode of action/chemical group of herbicide active substances on all arable crops - 2016

Area (ha) and quantity (kg) of active substances for all crops

Mode of Action

Active Substance

Chemical

Group

HRAC

Group

All arable

All arable

(ha)

(kg)

Inhibition of acetyl CoA carboxylase

Clodinafop-propargyl

Aryloxyphenoxy-propionate ' FOPS'

A

9,695

274

Fenoxaprop-P-ethyl

Aryloxyphenoxy-propionate ' FOPS'

A

5,542

300

Fluazifop-P-butyl

Aryloxyphenoxy-propionate ' FOPS'

A

4,200

380

Propaquizafop

Aryloxyphenoxy-propionate ' FOPS'

A

13,198

678

Quizalofop-P-ethyl

Aryloxyphenoxy-propionate ' FOPS'

A

3,475

110

Quizalofop-P-tefuryl

Aryloxyphenoxy-propionate ' FOPS'

A

3,490

105

Cycloxydim

Cyclohexanedione ' DIMS'

A

1,950

422

Pinoxaden

Phenylpyrazoline

A

45,012

1,156

All Inhibition of acetyl CoA carboxylase

86,562

3,425

Inhibition of acetolactate synthase ALS

Amidosulfuron

Sulfonylurea

B

1,663

38

Flupyrsulfuron-methyl

Sulfonylurea

B

28,149

189

Iodosulfuron-methyl-sodium

Sulfonylurea

B

16,309

34

Mesosulfuron-methyl

Sulfonylurea

B

14,903

105

Metsulfuron-methyl

Sulfonylurea

B

172,852

597

Rimsulfuron

Sulfonylurea

B

505

5

Sulfosulfuron

Sulfonylurea

B

132

3

Thifensulfuron-methyl

Sulfonylurea

B

155,161

3,559

Tribenuron-methyl

Sulfonylurea

B

123,338

1,009

Imazamox

Imidazolinone

B

1,148

67

Florasulam

Triazolopyrimidine

B

69,976

181

Pyroxsulam

Triazolopyrimidine

B

3,108

58

All inhibition of acetolactate synthase ALS

587,245

5,845

Inhibition of photosynthesis at photosystem II

Metribuzin

Triazinone

C1

21,936

10,152

Chlorotoluron

Urea

C2

8,037

3,654

Linuron

Urea

C2

17,319

9,632

Metobromuron

Urea

C2

525

525

Bromoxynil

Nitrile

C3

1,533

186

Ioxynil

Nitrile

C3

1,153

81

All inhibition of photosynthesis at photosystem II

50,504

24,230

Photosystem-I-electron diversion

Diquat

Bipyridylium

D

57,951

22,608

Inhibition of protoporphyrinogen oxidase

Carfentrazone-ethyl

Triazolone

E

19,369

953

Pyraflufen-ethyl

Phenylpyrazole

E

850

18

All inhibition of protoporphyrinogen oxidase

20,218

971

Bleaching: Inhibition of carotenoid biosynthesis

Diflufenican

Pyridinecarboxamide

F1

157,797

8,095

Flurtamone

Other

F1

19,557

1,200

Picolinafen

Pyridinecarboxamide

F1

74,601

2,186

All bleaching: inhibition of carotenoid biosynthesis

251,956

11,481

Bleaching: DOXP inhibitors

Clomazone

Isoxazolidinone

F4

13,206

822

Inhibition of EPSP synthase

Glyphosate

Glycine

G

196,243

168,709

Microtubule assembly inhibition

Pendimethalin

Dinitroaniline

K1

127,238

99,187

Propyzamide

Benzamide

K1

5,125

3,527

All microtubule assembly inhibition

132,363

102,715

Mode of Action

Active Substance

Chemical

Group

HRAC

Group

All arable

All arable

(ha)

(kg)

Inhibition of mitosis / microtubule organisation

Carbetamide

Carbamate

K2

1,032

1,857

Inhibition of VLCFAs

Dimethenamid-P

Chloroacetamide

K3

3,646

1,480

Metazachlor

Chloroacetamide

K3

23,922

15,388

Dimethachlor

Chloroacetamide

K3

412

418

Flufenacet

Oxyacetamide

K3

86,704

12,849

All inhibition of VLCFAs

114,684

30,135

Inhibition of lipid synthesis

Prosulfocarb

Thiocarbamate

N

3,388

7,245

Action like indole acetic acid

2,4-D

Phenoxy-carboxylic acid

O

3,495

2,873

2,4- DB

Phenoxy-carboxylic acid

O

6,215

5,322

Dichlorprop-P

Phenoxy-carboxylic acid

O

7,049

3,217

MCPA

Phenoxy-carboxylic acid

O

16,761

7,557

Mecoprop-P

Phenoxy-carboxylic acid

O

191,282

110,755

Dicamba

Benzoic acid

O

68,884

4,321

Aminopyralid

Pyridine carboxylic acid

O

1,528

11

Clopyralid

Pyridine carboxylic acid

O

33,678

2,260

Fluroxypyr

Pyridine carboxylic acid

O

142,425

15,743

Picloram

Pyridine carboxylic acid

O

2,075

46

Quinmerac

Quinoline carboxylic acid

O

7,514

1,579

Halauxifen-methyl

Arylpicolinate

O

259

1

All action like indole acetic acid

481,162

153,684

All herbicides

1,996,514

533,728

Area grown

494,167

Note: Active substances have been grouped by their mode of action. Full details on mode of action classification can be found on the Herbicide Resistance Action Committee ( HRAC) webpage (11).

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