Center of Agricultural Technology Augustenberg,,, The Use of Boscalid in Tobacco Production Norbert...

Center of Agricultural Technology Augustenberg

<Billenkamp>, <19.02.08>, <AERET>, <Toulouse>

The Use of Boscalid in Tobacco ProductionThe Use of Boscalid in Tobacco Production

Norbert Billenkamp



500 g/kg Boscalid Cantus, Cantus WG, Filan, Pictor Pro

Content of active ingredients Trade names

252 g/kg Boscalid Bellis, Bellis 38 WG, Bellis WG128 g/kg Pyraclostrobin Pristine, Cabrio C

136 g/kg Boscalid Bellis Plus, Naria 68 g/kg Pyraclostrobin

267 g/kg Boscalid Signum, Signum 33 WG, 67 g/kg Pyraclostrobin Signum WG

Boscalid fungicides worldwide




700 g/kg Boscalid Emerald, Endura, Cadence, Lance WDG Fungicide

Content of active ingredients Tade names

200 g/l Boscalid Cantus flüssig, Pictor200 g/l Dimoxistrobin

200 g/l Boscalid Collis100 g/l Kresoxim-methyl

233 g/l Boscalid Tracker, Splice, Venture, 67 g/l Epoxyconazole Champion





Spectrum of activity (according to BASF)

Boscalid Boscalid + Pyraclostrobin

Botrytis ****Sclerotinia ****Rhizoctonia **Alternaria ***Erysiphe **

Botrytis ****Sclerotinia ****Rhizoctonia ****Alternaria ***Erysiphe ***Peronospora ***Rhizopus *** (?) **** excellent

*** good** moderate* low



Trials with Boscalid in Seedbeds

Treatments: 2,08 g Cantus / m², adding to the float water=> 1,04 g Boscalid / m²=> 1,05 mg Boscalid / plant / 100 ml water

Years: 2004, 2005, 2006




Efficacy of Boscalid in Seedbeds

1

2

3

4

5

6

7

8

9

Sca

le 1

- 9

50 days after treatm. 64 days after treatm.

Control 1,05 mg Boscalid / plant

Infestation with Botrytis2004

0

2

4

6

8

10

% in

fest

ed t

rays

77 days after treatm.

Control 1,05 mg Boscalid / plant

Infestation with Botrytis2005




Artificial Inoculation with Botrytis in Seedbeds


Botrytis artificial inoculation S1-2006

0%

20%

40%

60%

80%

100%

% s

ym

pto

ms

No symptoms Leaf Symptoms Stem symptoms Untreated Control

2,08 mg Cantus /

plant



Boscalid Residues in Float Water 2005

0

2

4

6

8

10

12

28. Feb. 7. Mrz. 29. Mrz. 4. Mai. 25. Mai.

pp

m

0

0,2

0,4

0,6

0,8

1

1,2

g/m

²

ppm g/m²




Boscalid Residues in cured Tobacco Leaves 2006Seedbed Treatments

0

0,5

1

1,5

2

2,5

3

pp

m

1st harvest 2nd harvest

Trial Control Trial Treatment FC production Burley production




Trials with Boscalid + Pyraclostrobin in the Field~ Artificial Inoculation with Sclerotinia~ Pesticide Residues in the Field

Treatments: 1,8 kg Signum / ha, one or two times=> 0,486 kg Boscalid / ha 0,126 kg Pyraclostrobin / ha

Years: 2006, 2007




Trials with Boscalid + Pyraclostrobin~Artificial Inoculation with Sclerotinia


Sclerotinia-artificial Inoculation

1

2

3

4

5

6

7

8

9

Sc

ale

1st valuation 2nd valuation

Mean Infestation

Untreated Control

1,8 kg Signum



0

20

40

60

80

100

120

140

160

180

200

15.0

7.20

05

22.0

7.20

05

29.0

7.20

05

05.0

8.20

05

12.0

8.20

05

19.0

8.20

05

26.0

8.20

05

02.0

9.20

05

09.0

9.20

05

16.0

9.20

05

23.0

9.20

05

30.0

9.20

05

pp

m

Mean Control Mean Treatments

29.07. 12.08.

Boscalid 2005


Pesticide Residues

0

5

10

15

20

25

30

35

40

45

50

15.0

7.20

05

22.0

7.20

05

29.0

7.20

05

05.0

8.20

05

12.0

8.20

05

19.0

8.20

05

26.0

8.20

05

02.0

9.20

05

09.0

9.20

05

16.0

9.20

05

23.0

9.20

05

30.0

9.20

05

pp

m

Mean Control Mean TreatmentsPyraclostrobin 200529.07. 12.08.

0

20

40

60

80

100

120

140

160

180

200

15.0

7.20

06

22.0

7.20

06

29.0

7.20

06

05.0

8.20

06

12.0

8.20

06

19.0

8.20

06

26.0

8.20

06

02.0

9.20

06

09.0

9.20

06

16.0

9.20

06

23.0

9.20

06

30.0

9.20

06

pp

m

Mean Control Mean TreatmentsBoscalid 2006

21.07. 17.08.

0

5

10

15

20

25

30

35

40

45

50

15.0

7.20

06

22.0

7.20

06

29.0

7.20

06

05.0

8.20

06

12.0

8.20

06

19.0

8.20

06

26.0

8.20

06

02.0

9.20

06

09.0

9.20

06

16.0

9.20

06

23.0

9.20

06

30.0

9.20

06

pp

m

Mean Control Mean TreatmentsPyraclostrobin 2006

21.07. 17.08.

Boscalid

Pyraclo-strobin

2005 2006




Pesticide Residuesa) FC c) DAC

b) Burley

0

10

20

30

40

50

60

pp

m

Boscalid Pyraclost.13.07.

0

10

20

30

40

50

60

pp

m

Boscalid Pyraclost.

13.07.

0

10

20

30

40

50

60

pp

m

Boscalid Pyraclost.

13.07.




MRL or tolerance values for other crops

Boscalid Pyraclostrobin

US Leaf lettuce 11,0 ppm

EU Leaf brassica 10,0 ppm

EU Leaf lettuce 10,0 ppm

EU Strawberries 5,0 ppm

Japan Food import 15,0 ppm

Ger. Leaf lettuce(recommended) 40,0 ppm

EU Leaf lettuce 10 ppm

Japan Composite Vegetables 30 ppm




Activities planned

Cantus in seedbeds: no further activities necessary (?)

Signum in the field: 0,6 kg/ha early (BBCH 1109/3300)(only 1 treatment) 1,2 kg/ha early (BBCH 1109/3300)

1,8 kg/ha early (BBCH 1109/3300)0,6 kg/ha late (BBCH 1116/3306)1,2 kg/ha late (BBCH 1116/3306)1,8 kg/ha late (BBCH 1116/3306)

Center of Agricultural Technology Augustenberg,,, The Use of Boscalid in Tobacco Production Norbert...

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