by understanding the plant pathogen …...• by understanding the plant pathogen epidemiology &...

OPTIMIZINGSWATHPATTERNCHARACTERISTICSFORIMPROVEDCONTROLOFTHEPLANT

PATHOGEN,BLACKSIGATOKA,INCOMMERICALCAVENDISHBANANAPLANTATIONS.

• BYUNDERSTANDINGTHEPLANTPATHOGENEPIDEMIOLOGY&LEAFPHENOLOGY,ITWASPOSSIBLETODEFINETHEINFECTIONPROCESSANDSOADAPTTHESWATHPATTERNCHARACTERISTICSINORDERTOACHIEVEOPTIMUMBIOAVAILABILITYOFTHEFUNGICIDE’SACTIVEINGREDIENTS.

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BLACKSIGATOKAISAPLANTPATHOGENPANDEMICACROSSTHEGLOBE- ÅFFECTINGIOVER1,000,000ACRESOFCAVENDISHBANANAPRODUCTION.RIGHTNOW- ONAVERAGEX50AERIALSPRAYAPPLICATIONSAREMADETOKEEPTHEDISEASEIN-CHECK,IFNOT,THEBANANAPLANTATIONCANBEDESTROYEDWITHINAMATTEROFMONTHS.

BANANASPRAYING

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4

THEIMPACTOFBANANALEAFPHENOLOGY:HOWDOESTHELEAFSHAPEINFLUENCEFUNGALSPORE&SPRAYDROPCAPTURE?

SIGATOKADISEASEEPIDEMIOLOGY-FORECASTING- ACTIVESPORETRAPS

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DISEASEINFECTIONPATTERN

HOWISITPOSSILBETHATTHISCYLINDRICAL;VERTICALLEAFCANCAPTUREFUNGALASCOSPORES-15µm

CP11nozzle@60⁰ CP11nozzle@30⁰

CP11nozzle@0⁰

SWATHKITANALYSIS:DROPLETTECHNOLOGIES- USA

10

110%

1%

2%

3%

4%

5%

6%

7%

%DR

OPNU

MBER

DROPSIZE- microns

TurboThrush32CP11TTHORIZONTAL:DropletSIZEDistribution

0° NozzleAngle

30° NozzleAngle

0%

1%

2%

3%

4%

5%

6%

7%

8%

9%%D

ROPN

UMBER

DROPSIZE- microns

TurboThrush32CP11TTVERTICAL:DropletSIZE Distribution

0° NozzleAngle

30° NozzleAngle

12

NOZZLEANGLE %NO. %VOL0 3 3030 1.6 10

NOZZLEANGLE %NO. %VOL0 56 2130 60 52

VERTICALCYLINDERSDROPSIZEDISTRIBUTION

DROPS>400

HORIZONTALDROPS100-300

130%

1%

2%

3%

4%

5%

6%

7%

8%

9%

10%

%VO

LUME

DROPSIZE- microns

TurboThrush32CP11TTHORIZONTAL:DropletVOLUMEDistribution

0° NozzleAngle

30° NozzleAngle

0%

1%

2%

3%

4%

5%

6%

7%

8%

9%%V

OLUME

DROPSIZE- microns

TurboThrush32CP11TTVERTICAL:DropletVOLUME Distribution

0° NozzleAngle

30° NozzleAngle

14

NOZZLEANGLE030

NOZZLEANGLE030

%VOL

47%67%

%VOL

75%40%

DROPS>450

VOLUMEDISTRIBUTIONVERTICALCYLINDERS

DROPS<300

HORIZONTAL

DropletcumulativedistributionontheVerticalandHorizontalCollector:CP11nozzle- 0⁰vs.30⁰

15

0

10

20

30

40

50

60

70

80

90

100

-100 100 300 500 700 900

Cumulative%

DropletDiameter(µm)

TurboThrush- CP11- 4020- 0°

HorizontalDV0.5HorizontalDN0.5VerticalDV0.5

HorizontalDN0.5=141µmDV0.5=495µmVerticalDN0.5=

APPENDIX5

0

10

20

30

40

50

60

70

80

90

100

0 100 200 300 400 500 600 700 800 900

Cumulative%

DropletDiameter(µm)

TurboThrush- CP11- 4020- 30°

Horizontal DV0.5

Horizontal DN0.5

VerticalDV0.5

VerticalDN0.5

HorizontalDN05=114µmDV0.5=294µmVerticalDN0.5=75µmDV0.5=261µm

Theresults(R-Span)showquiteclearlythata30Degreeincreaseinnozzleorientationwillhasnotcausedany

increaseintherelativespectraspanssoisNOTcausingmassiveamountsof

smallerdrops!

Intermsofincreaseddriftpotential,underthecorrectconditionstherewillbenoincreaseindriftbychangingtheNozzleorientationfrom0to30degrees

withtheCP11nozzle.16

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ForSystemicFungicidesinanO/Wtankmixuse

aCP11TTnozzle@0⁰

ForFungicideswithaProtectantmodeofaction useaCP11TT

nozzle@30⁰

MICROEMULSION:HLDTECHNOLOGY

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