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Pome fruits

Pome fruits. Teflubenzuron is registered for use on apples, pears and quinces in France, apples and pears in Greece, Italy, Jordan, The Netherlands, Portugal, Spain, Switzerland and the United Arab Emirates, and apples in Argentina and Poland. One to three treatments with 0.06 (Spain) to 0.3 kg ai/ha (Switzerland) are recommended with PHIs of 7 (United Arab Emirates) to 30 (Greece, apple) and 60 days (Greece, pear).

Apples (Table 8). Supervised trials on a number of varieties of apples have been conducted in Slovakia, France, Germany, Italy, South Africa, the UK and the USA between 1982 and 1993. No GAP was available for Germany or the UK, but the trials in these countries could be related to Dutch GAP. After 1-4 treatments with 0.11-0.21 kg ai/ha (0.011 kg ai/hl) the highest residue after PHIs of 24-28 days was 0.37 mg/kg.

Many residue trials were conducted in France, but they did not accord with French or other Southern European GAP.

The results of 5 Italian trials were evaluated with reference to Southern European GAP (Italy, Greece and Switzerland). Two of the trials (2 treatments with 0.24-0.27 kg ai/ha approximated both Swiss GAP (2-3 treatments, 0.3 kg ai/ha, 21-day PHI) and Greek (2-3 treatments, 0.21 kg ai/ha, 30-day PHI). The residues were 0.46 and 0.48 mg/kg at 21 days and 0.45 and 0.51 mg/kg at 28 days. Two other complied with the Italian GAP of 1-3 treatments at 0.15-0.16 kg ai/ha and a PHI of 14 days. The residues were 0.23 and 0.27 mg/kg.

No GAP was available for the USA so the results could not be evaluated.

Table 8. Residues of teflubenzuron in apples from supervised trials.

Country, year

Application

PHI, days

Residues, mg/kg

Report No.

kg ai/hl

kg ai/ha

No.

France, 1982

0.008

0.098

6

28

0.25

18264.35.02

France, 1982

0.008

0.098

6

19

0.27

18264.35.01

France, 1983

0.009

0.098

6

21

0.34

18364.35.01

France, 1983

0.009

0.098

6

27

0.35

18364.35.02

France, 1984

0.005

0.05

4

42

0.1

FR84405046018B

0.005

0.05

4

42

0.06

0.005

0.05

4

42

0.04

France, 1984

0.011

0.1

4

42

0.2

FR84405046018C

0.011

0.1

4

42

0.15

0.011

0.1

4

42

0.22

France, 1984

0.015

0.15

4

42

0.37

FR84405046018D

0.015

0.15

4

42

0.18

0.015

0.15

4

42

0.27

France, 1984

0.001

0.11

8

27

0.68

I8451.3501A

France, 1984

0.01

0.15

8

27

1.2

I8451.3501B

France, 1984

0.008

0.11

9

6

0.49

I8451.3601A

France, 1984

0.01

0.15

9

6

0.63

I8451.3601B

France, 1985

0.005

0.14

2

100

<0.07

16082.86A

0.009

0.27

2

100

<0.06

0.014

0.41

2

100

0.16

France, 1985

0.005

0.11

2

100

<0.05

16082.86B

0.009

0.23

2

100

0.08

0.014

0.34

2

100

<0.07

France

0.005

0.05

1

118

<0.03

15734.87

France

0.017

0.05

1

107

<0.03

France

0.005

0.05

1

136

<0.03

France

0.005

0.05

1

126

<0.03

France

0.01

0.05

1

121

<0.04

France

0.005

0.05

2

83

<0.04

France

0.005

0.05

2

81

0.03

France

0.005

0.05

2

41

0.08

France

0.01

0.05

2

80

<0.03

France

0.005

0.05

3

30

0.04

France

0.004

0.05

3

35

0.03


Country, year Application PHI, days Residues, mg/kg Report No.
kg ai/hl kg ai/ha No.

France

0.005

0.05

3

82

<0.03

 

France

0.005

0.05

3

28

0.06

 

France

0.005

0.05

3

50

<0.03

 

France

0.005

0.05

3

42

0.06

 

France

0.005

0.05

3

47

0.03

 

France

0.005

0.05

3

16

0.08

 

France

0.005

0.05

3

47

0.07

 

France

0.005

0.05

3

5

0.08

 

France

0.005

0.05

3

16

0.11

 

France

0.005

0.05

3

48

0.07

 

France

0.005

0.05

6

38

0.09

 

France

0.005

0.05

6

54

0.10

 

France

0.005

0.05

6

30

0.09

 

Germany, 1982

 

0.011

0.14

4

0

0.32

C820972

 




14

0.29




21

0.20




28

0.23




35

0.20




42

0.26

Germany, 1982

 

0.011

0.14

4

0

0.27

C821072

 




14

0.17




21

0.19




28

0.19




35

0.15




42

0.13

Germany, 1982

 

0.011

0.14

1

0

0.31

C827572

 




14

0.15




28

0.09




42

0.07




56

<0.05




70

<0.05




84

<0.05

Germany, 1983

 

0.011

0.16

2

0

0.23

C832872

 

0.005

0.08

1

14

0.21




28

0.19




35

0.19




42

0.18

Germany, 1983

 

0.011

0.21

2

0

0.43

C83280101

 

0.005

0.10

1

14

0.23




28

0.24




35

0.22




42

0.17

Germany, 1983

 

0.011

0.21

2

0

0.46

C83280501

 

0.005

0.10

1

14

0.38




28

0.36




35

0.31




42

0.28

Germany, 1983

 

0.011

0.21

2

0

0.13

C83280601

 

0.005

0.10

1

14

0.13




28

0.05




35

0.09




42

0.09

Germany, 1984

 

0.011

0.12

4

0

0.35

C840672

 




14

0.29




28

0.27




35

0.23




42

0.20

Germany, 1984

 

0.011

0.21

4

0

0.70

C84060101

 




14

0.56




28

0.37




35

0.35




50

0.30

Germany, 1984

 

0.011

0.21

4

0

0.39

C84060601

 




14

0.23




28

0.29




35

0.21




49

0.18

Germany, 1985

 

0.032

0.16

4

0

0.40

C852272

 




3

0.29




7

0.38




14

0.28




21

0.22

Germany, 1985

 

0.042

0.17

4

0

0.27

C852206

 




3

0.24




7

0.25




14

0.23




21

0.16

Germany, 1985

 

0.042

0.21

4

0

0.36

C852201

 




3

0.16




7

0.13




14

0.12




21

0.12

Germany, 1993

 

0.021

0.16

3

0

0.27

SHE-9308

 




7

0.23




14

0.12




20

0.16

Italy, 1984

 

0.008

0.15

1

0

0.29

184/31/07/03

 




7

0.20




14

0.23




21

0.19




28

0.18

Italy, 1984

 

0.008

0.15

1

0

0.40

184/31/07/04

 




7

0.19




14

0.27




21

0.20




28

0.18

Italy, 1984

 

0.014

0.24

1

0

0.86

184/35/07/02

 

0.014

0.27

1

7

0.73




14

0.66




21

0.46




28

0.51

Italy, 1984

 

0.014

0.24

2

0

0.39

184/35/07/03

 




7

0.53




14

0.41




21

0.48




28

0.45

Italy, 1984

 

0.014

0.24

1

0

1.3

184/35/07/05

 

0.014

0.27

3

7

0.87




14

0.56




21

0.65




28

0.60

Slovakia, 1986

0.015

0.15

4

48

0.53

CU87-389

Slovakia, 1986

0.015

0.15

4

64

0.28

CU87-388

South Africa

0.011

0.26

6

16

0.66

ZAF86I00501

UK, 1985

0.011

0.11

2

20

0.09

GBR85I00201

UK, 1985

0.011

0.11

2

24

0.11

GBR85I00202

UK, 1985

0.011

0.11

2

24

0.23

GBR85I00203

USA, 1987

 

0.006

0.11

4

5

0.25

HAS A025.001

 




5

0.12




11

0.26




11

0.12




20

0.17




20

<0.05

USA, 1987

 

0.024

0.11

4

7

0.06

HAS A025.001

 




7

<0.05




15

0.10




15

0.08




30

0.11




30

0.06

USA, 1987

 

0.024

0.11

4

7

0.10

HAS A025.001

 




7

0.07




7

0.12




7

<0.05




7

0.12




7

0.07




7

0.12




7

0.12




7

0.07




7

0.09




7

0.09




15

0.16




15

0.12




15

0.10




15

0.12




15

0.05




15

0.08




30

0.05




30

0.16




30

0.10




30

0,08




30

0.09

USA, 1987

 

0.12

0.56

4

7

0.24

HAS A025.001

 




7

0.55




7

0.33




7

0.14




7

0.10




7

0.11




7

0.15




7

0.16




15

0.13




15

0.07




15

0.10




15

0.07




15

0.57




30

0.21




30

0.26




30

0.51




30

<0.05




30

0.30




30

0.10




30

0.27

USA, 1987

 

0.012

0.11

4

7

0.09

HAS A025.001

 




7

0.07




15

0.14




15

0.13




30

<0.05




30

<0.05

USA, 1987

 

0.005

0.11

4

6

0.15

HAS A025.001

 




6

0.13




12

0.12




12

0.10




12

0.12




12

0.10




24

0.18




24

0.08




24

0.11




24

0.11

USA, 1987

 

0.012

0.11

4

10

0.05

HAS A025.001

 




10

0.06




20

0.07




20

0.08




40

<0.05




40

0.06

 

Underlined residues in German and UK trials are from treatments which approximate Dutch GAP. Double-underlined Italian residues are from treatments which approximate Italian, Greek or Swiss GAP.


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