working group: citrus (olives/isolated trees) · cilindro base elíptica + semielipsoide (1/2 h...

Instituto Valenciano de Investigaciones Agrarias (IVIA)

Patricia Chueca[Investigadora / Centro de Agroingeniería]E-mail: [email protected] http://www.ivia.gva.es/----

EPPO workshop on harmonized dose expression for the zonal evaluation on plant protection products in high growing crops

Viena, 2016-10-18/20

Working group: Citrus (Olives/Isolated trees)

DOSE: amount of active material distributed per unit area.

CONCENTRATION: amount of product added to a unit of water volume.

SPRAY VOLUME: amount of water+product distributed per unit area in the field.

DOSE = SPRAY VOLUME X CONCENTRATION

Definition of parameters for dosage






(g/hl = g/100l, %)Spain






(g/hl = g/100l, %)España

¿?¿?Limitation: L/ha

CITRUS

SPRAY VOLUME=Foliar area(cm2leave/ha) x Min. deposit(µl/cm2 leave)SVr=SVt/Efficiency

1.Foliar density (cm2/m3 veg)xVeg.vol(m3 veg/ha)2. ¿¿¿LAI????

Spray volume

y = 487,47x + 5496,8R² = 0,4237

0,00

2000,00

4000,00

6000,00

8000,00

10000,00

12000,00

14000,00

0 2 4 6 8 10 12

LWA

(m2/

ha)

LAI

y = 1868,5x + 4368,8R² = 0,5131

0,00

5000,00

10000,00

15000,00

20000,00

25000,00

30000,00

35000,00

0 2 4 6 8 10 12TR

V pa

rale

lepí

pedo

(m

3/ha

)

LAI

SPRAY VOLUME=Foliar area(cm2leave/ha) x Min. deposit(µl/cm2 leave)

1.Foliar density (cm2/m3 veg)xVeg.vol(m3 veg/ha)2. ¿¿¿LAI????

Spray volume

y = 487,47x + 5496,8R² = 0,4237

0,00

2000,00

4000,00

6000,00

8000,00

10000,00

12000,00

14000,00

0 2 4 6 8 10 12

LWA

(m2/

ha)

LAI

y = 1868,5x + 4368,8R² = 0,5131

0,00

5000,00

10000,00

15000,00

20000,00

25000,00

30000,00

35000,00

0 2 4 6 8 10 12TR

V pa

rale

lepí

pedo

(m

3/ha

)

LAI


1.Foliar density (cm2/m3 veg)xVeg.vol(m3 veg/ha)

Spray volume

0,001,002,003,004,005,006,007,00

DEN

SIDA

D FO

LIAR

(m2/

m3)

0,002000,004000,006000,008000,00

10000,0012000,0014000,0016000,0018000,0020000,00

Parcela 6

Elipsoide

Elipsoide (Ø entre árboles)

Elipsoide (Ø entre filas)

Elipsoide (Ø medio)

Cilindro base elíptica + semielipsoide (1/2 h copa)

Cilindro base elíptica + semielipsoide (2/3 h copa)

TRV paralelepípedo

TRV cilindro elíptico

TRV "invernadero" ( 1/2 h copa)

TRV "invernadero" (2/3 h copa)


1.Foliar density (cm2/m3 veg)xVeg.vol(m3 veg/ha)

Spray volume

y = 1,0586x + 8141,9R² = 0,6507

0

5000

10000

15000

20000

25000

30000

35000

40000

0 5000 10000 15000 20000 25000 30000

TRV

(m3 /

ha)

Ellipsoid (m3 veg/ha)

y = 0,1198x + 8216R² = 0,0819

0

2000

4000

6000

8000

10000

12000

14000

16000

0 5000 10000 15000 20000 25000 30000

LWA

(m3 /

ha)

Ellipsoid (m3 veg/ha)

SPRAY VOLUMEt=Foliar area(cm2leave/ha) x Min. deposit(µl/cm2 leave)

SVr=SVt/Efficiency

Spray volume

Deposition Efficacy

Control 1000 µl 2000 µl 3000 µl 4000 µl

Minimum deposit of chlorpyrifos mixture for young stages and adult

females

Factors:-Product-Pest

Determinación L/m3 vegetación

Minimum deposit (µl/cm2)

Leaf Area Density (m2/m3) + Volumen vegetación m3/ha(Canopy volume + Trees/ha)

spray application volume (L/m3 vegetación - ha)

CASE OF STUDY

Citrus orchard characteristics:

*The tree shape was consider a ellipsoid

Treatment characteristics:

Report Crop Spacing(mxm)

Canopyheight(m)

Diam-cross(m)

Diam-lengh(m)

Shapetree *(m3 veg/ha)

TRV (m3/ha)

LWA(m2/ha)

1 Washington orange

5x4 1.5 4 4 6300 12000 6000

2 Washington orange

4x2 1.3 2 2 3400 6500 6500

Report

Treatment

Product

[] (g/hl)

Sprayvol(L/ha)

Dose(kg/ha)

Dose(kg/10000 LWA ha)

Dose(kg/10000 TRV ha)

Dose(kg/10000 m3 veg ha)

1 1 1 20 1200 2400 4000 2000 3800

1 2 1 30 1200 3600 6000 3000 5700

1 3 1 60 1200 7200 12000 6000 11500

2 4 1 20 1300 2600 4000 4000 7600

2 5 1 30 1300 3900 6000 6000 11500

2 6 1 60 1300 7800 12000 12000 22900

CASE OF STUDY

Citrus orchard characteristics:

*The tree shape was consider a ellipsoid

Treatment characteristics:

Orchard Crop Spacing(mxm)

Canopyheight(m)

Diam-cross(m)

Diam-lengh(m)

Shapetree *(m3 veg/ha)

TRV (m3/ha)

LWA(m2/ha)

1 Washington orange

5x4 1.5 4 4 6300 12000 6000

2 Washington orange

4x2 1.3 2 2 3400 6500 6500

Orchard Treatment

Prod. [] (g/hl)

Sprayvol. (L/ha)

Dose(kg/ha)

Dose(kg/10000 LWA ha)

Dose(kg/10000 TRV ha)

Dose(kg/10000 m3 veg ha)

1 1 1 20 1200 2400 4000 2000 3800

1 2 1 30 1200 3600 6000 3000 5700

1 3 1 60 1200 7200 12000 6000 11500

2 4 1 20 1300 2600 4000 4000 7600

2 5 1 30 1300 3900 6000 6000 11500

2 6 1 60 1300 7800 12000 12000 22900

Persimmon-Canopy Characterization along the season

Canopy volume (m3/tree)

Foliar density (m2 leaves/m3 canopy)1 2 3 4 5

ALTOM3M2M1BAJO

EXTERIOR

INTERIOR

% OCCUPIED BY LEAVES

0

2

4

6

8

10

12

14

16

18

0 10 20 30 40 50 60 70 80 90 100

FOLI

AR D

ENSI

TY (m

2/m

3)

% OCUPPIED BY LEAVES

CANOPY FOLIAR

DENSITY

Canopy volume = Half ellipsoidCanopyheight

Ø along the row

Ø acrossthe row

m2 leaves/m3 canopy = f(% occupied by leaves)

Persimmon-Canopy Characterization along the season

16 m3

21 m3

2.7 m2/m3

35

4.3

21 m3

4 m2/m3

22

3.8

28

4.2

28

3.317 m3

APRIL SEPTEMBER

ORCH

ARD

1O

RCH

ARD

2

Table of dose expressions op Plant Protection Products in high growing crops mentioned in EPPO Standard PP 1/239(2) Concentration of the formulated product in the spray volume

g or L per hL or %

Dose per ha ground kg or L/ha Dose per ha leaf wall area (LWA) kg or L per 10.000 m² leaf wall area Tree Row Volume (TRV) Kg or L per 10 000 m3 tree row

volume (TRV) Tree-area density Dose per ha ground for every m

canopy height kg or L per m crown height and

hectare

Instituto Valenciano de Investigaciones Agrarias (IVIA)

Patricia Chueca[Investigadora / Centro de Agroingeniería]E-mail: [email protected] http://www.ivia.gva.es/----

EPPO workshop on harmonized dose expression for the zonal evaluation on plant protection products in high growing crops

Viena, 2016-10-18/20

working group: citrus (olives/isolated trees) · cilindro base elíptica + semielipsoide (1/2 h...

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