Seed Piece TreaTmenTS i FungicideS i PoST-harveST TreaTmenTS i herbicideS i inSecTicideS

2016

Crop Protection Solutions

MAKE TIME FOR WHAT REALLY MATTERS. CORAGEN® CAN HELP.You’re proud of your potato crop. Let’s face it. No one ever looks back and wishes they’d spent more time controlling crop damaging, yield robbing insects. We get that. DuPont™ Coragen® is powered by Rynaxypyr®, a unique active ingredient and a novel mode-of-action that delivers extended residual control of European corn borer, decreasing the number of applications needed in a season. And, if your Colorado potato beetle seed treatment control breaks late in the season, Coragen® can provide the added control you need, so you have time for more important things. Its environmental pro� le makes Coragen® a great � t for an Integrated Pest Management Program and it has minimal impact on bene� cial insects and pollinators when applied at label rates.1

For farmers who want more time and peace of mind, Coragen® is the answer. Questions? Ask your retailer, call 1-800-667-3925 or visit coragen.dupont.ca

DuPont™

Coragen®

Insecticide

1 In line with Integrated Pest Management and Good Agricultural Practices, insecticide applications should be made when pollinators are not foraging to avoid unnecessary exposure.

As with all crop protection products, read and follow label instructions carefully.Member of CropLife Canada.

Unless indicated, trademarks with ®, ™ or SM are trademarks of DuPont or affi liates. © 2016 DuPont.

1460 Coragen Potato Ad_NatPotGuide.indd 1 1/7/16 1:29 PM

0103Potato Guide 2016

ForumBASF’s Forum was expected to be registered in January 2016, says Scott Hodgins, manager for BASF Canada in Mississauga, Ont. Forum is composed of an active ingredient already used in the fungicide Zampro SC — dimethomorph, from the chemical Group 45. Forum’s mode of action makes it a highly systemic fungicide for the control of late blight in potato and other vegetable crops. Its anti-sporulating activity kills Phytophthora infestans, the spores of the late blight fungus, and protects the crop right at the beginning of infection. Forum will be offered in an easy-to-use liquid formulation. Forum will always have to be tank mixed with a contact, registered fungicide. basf.ca

Quadris TopQuadris Top is a broad-spectrum product composed of two fungicides. It offers preventive, systemic and curative properties for the suppression in potato crops of early blight (Alternaria solani), brown or target spot (Alternaria alternata) and black dot (Colletotrichum coccodes).

Quadris Top (azoxystrobin, a Group 11 fungicide, and difenoconazole, a Group 3 fungicide) is now registered for the suppression of white mould (Sclerotinia sclerotiorum) when used at its highest rate (1 litre per hectare or 0.41 l/acre).syngenta.ca/

SercadisRegistered in October 2015, BASF’s Sercadis is a new broad-spectrum and highly systemic fungicide for the control of early blight (Alternaria solani), white mould (Sclerotinia sclerotiorum), and Rhizoctonia canker or black scurf (Rhizoctonia solani).

Sercadis is registered to protect fruits and vegetables from many groups: Group 1B (root vegetables), Group 1C (tuber-ous vegetables — like potatoes — and corm vegetables), Group 3 (bulb vegetables), Group 4 (leafy vegetables, except those from the genus Brassica), Group 5 (Brassica/cole/leafy vegetables), Group 8 (fruiting vegetables), Group 9 (cucurbit vegetables — cucumber/melon/squash), Group 11 (pome fruits like apple and pear), Group 12 (stone fruits), Group 13 (berries and small fruits, including grapes and strawberries), and Group 14 (including almonds).

“We believe Canadian fruit and vegetable growers will appre-ciate Sercadis, not only for its highly systemic activity against diseases, but also for its tank-mix flexibility,” says Scott Hodgins, brand manager, horticulture and specialty crops at BASF.

“The active ingredient in Sercadis is fluxapyroxad (brand name Xemium), a new compound within Group 7,” Hodgins says. “Sercadis belongs to the carboxamide class of fungicides within the SDHI family. Its highly systemic nature allows this fungicide to protect the plant as it grows. It is extremely mobile and moves across the plant with translaminar and ascending diffusion.”

Sercadis is mostly immediately absorbed by the plant, the rest forming a crystalline deposit tightly bound to the waxy

New potato protection products for 2016

0104 Potato Guide 2016

layer of the leaf, from which it gradually releases the molecule throughout the plant. This fungicide inhibits spore germination and production of the fungus at the leaf surface, as well as the development of its mycelium.

Optimal disease control is obtained when Sercadis is applied preventively, as part of a regular spraying program and in rotation with other fungicides. Sercadis can be readily tank mixed with other products on the market and offers flexibility regarding crop rotation.

Spraying of Sercadis on potatoes should start early in the season for the control of early blight. Sercadis can then be applied at early flowering for controlling white mould (Sclero-tinia sclerotiorum), using a non-ionic surfactant. When applied in the furrow, Sercadis delivers control of the soil-borne pathogen causing Rhizoctonia canker (Rhizoctonia solani). In the furrow, the fungicide must be sprayed along a band 10 to 20 cm (4-8 inches) wide. basf.ca

Serenade SOILRegistered in in May 2013, Bayer’s Serenade SOIL is available since 2014 for the control of the following diseases on potato fields: Rhizoctonia canker (black scurf and stem canker), caused by Rhizoctonia solani, pink rot (Phytophthora erythroseptica), leak and seed piece decay caused by Pythium species and, finally, rots due to several fusarium species.

This fungicide is made with the bacteria Bacillus subtilis (Group 44) and is particularly popular among organic potato growers and those willing to prevent resistance problems due to the repeated use of pesticides from the same chemical groups. Serenade SOIL acts as an armour for the potato roots.

What is new for this organic fungicide in 2016: it has been registered for the post-harvest suppression of silver scurf (Helminthosporium solani). It must be applied at the rate of 85 to 175 ml per tonne and with special attention to the quality of spraying. Indeed, these bacteria must completely coat the seed pieces. Disinfection and other cultural practices should also be used to help stop or minimize the presence of diseases on the tubers to be stored.

While Serenade SOIL is not the only product registered for

post-harvest treatment in potatoes, it can be considered as an additional tool for fighting against this increasingly widespread storage disease. bayercropscience.ca/

Sivanto primeThe active ingredient of Bayer’s Sivanto prime insecticide is flupyradifurone. It was registered by Health Canada in November 2015. Sivanto prime controls insect pests affecting many vegetable (including potato) and fruit crops. It also controls sucking insects of potatoes, such as aphids and leafhoppers.

Sivanto prime is a broad-spectrum insecticide. It has a sys-temic activity with acropetal translocation, that is, it moves from the roots to the leaves when applied in the soil (not for potatoes). When applied as a foliar spray, Sivanto prime moves in a trans-laminar way, in other words across the leaf tissue, which allows it to control insects feeding on the underside of the leaf. Sivanto prime is readily absorbed by the leaf tissue and is considered to be rainfast within an hour after drying. Its action is quick as well as residual. It protects the young leaves of potato plants. When sprayed against aphids, it stops their honeydew production only 90 minutes after spraying, and this, even for those aphids feed-ing on the lower leaf surface.

Sivanto prime can be applied with air-assisted sprayers, either through ground or aerial applications. Contrary to many Group 4 insecticides, Sivanto prime is only registered for foliar application on potatoes. As with other pesticides, Sivanto prime must be applied alternately with insecticides from other chemical groups targeting the same insect pests. All insecti-cides must be used according to an integrated pest manage-ment program which includes scouting and record-keeping, and includes cultural and biological practices as well as other methods of chemical eradication. bayercropscience.ca/

ReflexSyngenta’s Reflex herbicide quickly kills emerged broadleaf weeds. It keeps the fields clean until row closure. It is registered for Eastern Canada only. The active ingredient of this Group 14 herbicide is fomesafen (an OPP inhibitor). It also controls or suppresses some weed phenotypes that resist herbicides from Groups 2 (rimsulfuron) and 5 (atrazine, metribuzin). Reflex is particularly effective for pre-emergence control of redroot pigweed, common ragweed and lamb’s quarters. It must be applied immediately after hilling to prevent germination of the weeds mentioned on the label. Syngenta Canada recommends not to apply Reflex on soils having more than five per cent organic matter or on fine-textured soils. It cannot be applied, in the same field, more than once every two years. syngenta.ca/

Always read and follow label directions. FMC and Capture are trademarks of FMC Corporation. © 2015 FMC Corporation. All rights reserved.

GROW POTATOES, NOT SWISS CHEESE.

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No expensive application equipment required.

Safe, easy-to-use liquid.

Don’t let wireworms make a snack of your livelihood.

Protect your crop with Capture – a convenient liquid insecticide engineered to fit your operation.

POTATOES | RASPBERRIES | FMCcrop.ca

15FMC061_Capture Print2016 National Potato Guide8.125” x 10.75”Flight Date: February 2, 2016

Potato Guide 2016Potato Guide 201506

Seed Piece treatment diSeaSe2 inSect PeSt aPPlication

commercial namecommon name (active inGredient) Gr

oup1

Fusa

rium

rot

Seed

pie

ce d

ecay

and

leak

(Phy

thiu

m s

pp.)

Pink

rot

Late

blig

ht

Rhizo

cton

ia c

anke

r (bl

ack

scur

f)

Silv

er s

curf

Com

mon

sca

b

Verti

cilli

um w

ilt

Colo

rado

pot

ato

beet

le

Aphi

ds

Leaf

hopp

er

Wire

wor

m

Flea

bee

tle

Seed

pie

ce tr

eatm

ent

In-fu

rrow

trea

tmen

t

Admire 240 / SPT (in-furrow and on seed pieces) imidacloprid 4 X X X X Y Y

Actara 240 SC (in-furrow and on seed pieces) thiamethoxam 4 X X X Y Y

Alias 240 SC (in-furrow and on seed pieces) imidacloprid 4 X X X X Y Y

BAS 700 01 F / BAS 700 04 F fluapyroxade 7 X N Y

Capture 240 EC (in-furrow) bifenthrine 3 X N Y

Clutch 50 WDG / Chlothianidin (in-furrow) chlothianidin 4A X N Y

Cruiser Maxx Potato Extreme fludioxonil + difenoconazole + thiamethoxam 12+3+4 X X X X X Y N

Emesto Quantum chlothianidine + penflufen 4+7 X X X X X X Y N

Emesto Silver penflufen + prothioconazole 7+3 X X X Y N

Fortensa cyantraniliprole 28 X Y N

Genesis 240 imidacloprid 4 X X X X Y N

Genesis XT mancozeb + thiophanate-methyl + imidacloprid M+1 (4) X X X X X X Y N

Genesis MZ imidacloprid + mancozeb M (4) X X X X X Y N

Grapple / Grapple 2 imidacloprid 4 X X X X Y Y

Heads Up Saponins from quinoa (Chenopodium quinoa) NA X Y N

Manzate 200 WP / MancoPlus mancozeb M X Y N

Maxim D fludioxonil + difenoconazole 12+3 X X X Y N

Maxim MZ PSP fludioxonil + mancozeb 12+M X X X Y N

Minecto Duo (in-furrow) thiamethoxam + cyantraniliprole 4 + 28 X X X X N Y

Nipsit Inside thiamethoxam 4 X X X X X Y N

Penncozeb 80 WP / Dithane M-45 8% mancozeb M X Y N

Penred 240 FS (in-furrow and seed piece) penflufen 7 X X3 Y Y

Phostrol phosphites 33 X N Y

Polyram 16D metiram M X Y N

Potato ST16 / Tuberseal / PSPT 16% mancozeb M X Y N

Pyrifos 15 G / Chlorpyrifos 480 EC chlorpyrifos 1B X N Y

Quadris F / Abound / Azoxy azoxystrobin 11 X X N Y

Reason 500 SC fenamidone 11 X Y N

Ridomil Gold 480 SL / EC metalaxyl-m 4 X N Y

Senator PSPT thiophanate-methyl 1 X X X Y N

Serenade SOIL (in-furrow) Bacillus subtilis – X X X X N Y

Solan MX / Condor MZ / Mancoplus mancozeb M X Y N

Thimet 15-G phorate 1B X N Y

Titan ST chlothianidin 4A X X3 X X3 X3 Y Y

Verimark (in-furrow and on seed pieces) cyantraniliprole 28 X X Y Y

Vertisan penthiopyrade 7 X N Y

Vibrance Potato sedaxane 7 X X Y N

1. Group: Classification of fungicides according to their mode of action. Products belonging to the same group have a similar mode of action. 2. Diseases / Insects: The treatment product is registered for control or suppression of the corresponding diseases in the table. 3. For treatment of the seed piece only.Y: Yes (applies for this type of application).N: No (does not apply for this type of application).

Potato Guide 2016Potato Guide 2015 07

FunGicides diseases2 RestRictions

commeRcial name active inGRedient Grou

p1

Mod

e of

act

ion

of m

ain

ac

tive

ingr

edie

nt**

*

Early

blig

ht (A

ltern

aria

sol

ani)

Late

blig

ht

(Phy

toph

thor

a in

fest

ans)

Whi

te m

ould

(S

cler

otin

ia s

cler

otio

rum

) Pi

nk ro

t (P

hyto

phth

ora

eryt

hros

eptic

a)Se

ed p

iece

dec

ay, l

eak

(Pyt

hium

spp

.)Fu

sariu

m ro

t (Fu

sariu

m s

pp.)

Grey

mou

ld (B

otry

tis c

iner

ea)

Late

blig

ht o

n tu

bers

(P

hyto

phth

ora

infe

stan

s)Rh

izoct

onia

can

ker

(Rhi

zoct

onia

spp

.)Bl

ack

dot

(Col

leto

trich

um c

occo

des)

Brow

n le

af s

pot

(Alte

rnar

ia a

ltern

ata)

Silv

er s

curf

(H

elm

inth

ospo

rium

sol

ani)

Secu

rity

dela

y (h

ours

)7

Dela

y be

fore

har

vest

(day

s)3

Max

imum

num

ber o

f app

licat

ions4

Inte

rval

bet

wee

n ap

plic

atio

ns (d

ays)

5

Abound / Azoxy azoxystrobin 11 PND X X X 12 1 3 7-14

Acrobat 50 WP (+ Bravo or Dithane DG or Polyram DF)

dimethomorph (+ chlorotalonil or mancozeb or metiram) 40+M PAD X X 48 4 3 5-10

Allegro 500F fluazinam 29 EC X X 24 14 10 7-10

BAS 650 00 F ametotradin 45 PND X 12 4 3 7-10

BAS 700 01 F / BAS 700 04 F fluxapyroxade 7 PND X X X6 12 7 – 7-14

Bravo 500 / Bravo Zn / Echo 90 DF / Echo 720 chlorothalonil M C X X X 48 1 – 7-10

Cabrio Plus pyraclostrobin + metiram 11+M PND X X 24 3 3 7-14

Cantus boscalid 7 PND X 12 30 4 14

Confine Extra / Winfield Phosphite Extra phosphorus acid 33 CS X X X8 4 1 5 14

Copper 53 W tribasic copper M C X X 48 1 10 5

Copper Spray copper oxychloride M C X X 24 1 10 7-10

Curzate (+ Manzate or Dithane) cymoxanil + mancozeb 27+M PND X 24 8 7 5-7

Cyazofamid 400 SC cyazofamid 21 EC X X 12 7 6 7

Dithane / Manzate / Penncozeb mancozeb M C X X 24 1 – 5-10

Evito 480 SC fluoxastrobin 11 PND X 12 7 3 7

Gavel 75 DF zoxamid + mancozeb 22+M EC X X 48 3 6 7

Headline EC pyraclostrobin 11 PND X X 48 3 3 7-14

Inspire difenoconazole 3 PAD X 24 14 4 –

Kocide 101 / 1000 / 2000 / Parasol FL / WP copper hydroxide M C X X X 48 1 10 7-10

Luna Privilege fluopyram 7 PND X 12 7 5 7-14

Luna Tranquility fluopyram + pyrimethanil 7+9 PND X X X X 12 7 5 7-14

Penred 240 FS penflufen 7 PND X6 – – – –

Phostrol phosphorus acid 33 CS X X 12 0 7 7-14

Polyram DF metiram M C X X 24 1 – 7-10

Presidio / Fluopicolide 4 SC (+ Bravo) fluopicolid 43 PAD X 48 7 4 7-10

Quadris F azoxystrobin 11 PND X X X6 X6 X X6 12 1-906 3 7-14

Quadris Top azoxystrobin + difenoconazole 11+3 PND X X X 24 14 3 7-14

Quash (Metconazole 50 WDG) metconazole 3 PAD X 12 1 3 7-10

Ranman 400 SC cyazofamid 21 EC X X 12 7 6 7

Reason (+ Bravo or Dithane DG) fenamidone 11 PND X X 48 14 6 7-10

Revus mandipropamid 40 PND X 12 14 4 7-14

Ridomil Gold / Bravo Duo metalaxyl-m + chlorothalonil 4+M CS X X X X X X 48 14 3 14

Ridomil Gold MZ metalaxyl-m + mancozeb 4+M CS X X X X 48 3 3 10-14

Scala SC (+ Bravo) pyrimethanil 9 PND X 48 7 6 7-14

Sercadis fluxapyroxad 7 PND X X X6 12 7 3 7-14

Serenade ASO / MAX Bacillus subtilis M C X 4 0 – 7-10

Tanos 50 DF famoxadone + cymoxanil 11+27 PND X X 24 14 6 7

Tattoo C propamocarb HCL + chlorothalonil 28+M PAD X 48 7 6 5-7

Torrent 400 SC cyazofamid 21 EC X X 12 7 6 7

Treoris penthiopyrade + chlorothalonil 9+M PND X 12 14 4 7-14

Vertisan penthiopyrade 7 PND X X X6 12 7 3 7-14

Zampro SC ametoctradin + dimethomorph 40+45 PAD X X 12 4 3 5-10

1. Group: Classification of insecticides according to their mode of action. Products from the same group have a similar mode of action . To prevent the resistance, repeated applications of products from the same group must be avoided.

2. Diseases: Each of these fungicides is registered for control or suppression of the corresponding diseases.3. Delay before harvest (DBH): The number of days between the last application of the fungicide and the harvest.4. Maximum number of applications: The maximum number of fungicide applications per season, if specified on the label.5. Interval between applications: The maximum and minimum numbers of days between two consecutive applications of the same product.6. When fungicide is used in the furrow.7. Security delay (SD): Delay (hours) before going into the treated zone.8. Post-harvest application.Some fungicide combinations are approved by the Pest Management Regulatory Agency.Application guidelines may vary from one province to another.Make sure to always read guidelines before using any fungicide.

Mode of action of the main active ingredient

C Contact

EC Elaborated contact (anti-sporulating action)

PND Penetrating: non-diffusing or translaminar

PAD Penetrating with ascending diffusion

CS Completely systemic

Potato Guide 2016Potato Guide 201508

Post-Harvest treatment disease2

CommerCial nameCommon name (aCtive inGredient) Gr

oup1

Fusa

rium

rot (

Fusa

rium

spp

.)

Leak

, see

d de

cay

(Pyt

hium

spp

.)

Pink

rot (

Phyt

opht

hora

ery

thro

sept

ica)

Blac

kleg

, bac

teria

l sof

t rot

(Erw

inia

)

Late

blig

ht (P

hyto

phth

ora

infe

stan

s)

Rhizo

cton

ia c

anke

r or b

lack

scu

rf (R

hizo

cton

ia

sola

ni)

Silv

er s

curf

(Hel

min

thos

poriu

m s

olan

i)

Com

mon

sca

b (S

trept

omyc

es s

pp.)

Verti

cilli

um w

ilt (V

ertic

illiu

m s

pp.)

Bio-Safe 10 LP Pseudomonas syringae – X X

Confine / Confine Extra phosphorous acid 33 X X X

Serenade SOIL Bacillus subtilis – X

Stadium (post-harvest) azoxystrobin + fludioxonil + difenoconazole 11+12+3 X X

Storox hydrogen peroxide – X

1. Group: Classification of fungicides according to their mode of action. Products belonging to the same group have a similar mode of action. 2. Diseases / Insects: The treatment product is registered for control or suppression of the corresponding diseases in the table.

HerbiCides aPPliCation time annual Grassy weeds annual

broadleaf weeds Perennial weeds

CommerCial name Grou

p1

Prep

lant

Pre-

emer

genc

e

Pre-

emer

genc

e (cr

acke

d so

il)

Early

pos

t-em

erge

nce

Post

-em

erge

nce

Befo

re h

arve

st2

Crab

gra

ss

Barn

yard

gra

ss

Wild

oat

s

Witc

hgra

ss

Fall

pani

cum

Pros

o m

illet

Foxt

ails

Poly

gonu

m

(Sm

artw

eed,

wild

buc

kwhe

at)

Lam

b’s q

uarte

rs

Wild

mus

tard

Pigw

eeds

Com

mon

ragw

eed

Yello

w n

utse

dge

Quac

kgra

ss

Pere

nnia

l sow

-this

tle

Cana

da th

istle

Aim EC 14 X P P P P P P P P E P E P P P P P

Boundary LQD 15+5 X E E P E E P E – – – E – – – – –

Chateau WDG 14 X P P P P P P M – E – E E – – – –

Des-I-Cate2 16 X – – – – – – – – – – – – – – – –

Dual II Magnum3 15 X X E E P E E P E P – P M P E P P P

Dual II Magnum + Lorox 15+7 X E E P E E P E E E P E G M P P P

Eptam 8E3 8 X E E E E E – E M M P E M E G P P

Excel Super 1 X E E P E E E E P P P P P P P P P

Glyphosate (many formulations) 9 X X E E E E E E E E E E E E E E E E

Gramoxone3 22 X X G G G G G – G M G G G G – G M P

Ignite SN3 10 X E E E E E – E E E E E E – – – –

Lorox L3 / Linuron 400 L3 7 X M M P P M P M E E P G G P P P P

Outlook 15 X E E – E E – E P P P E P M P P P

Poast Ultra 1 X E E E E E E E P P P P P P M P P

Prism 2 X P E P E E P E – M G E P – G – –

Reglone2 22 X E E E E E E E E E E E E P P M P

Reflex 14 X – – – – – – – E E E E E – – – –

Sencor + Linuron 5+7 X G G – G G – G E E E E E P P P –

Sencor3 5 X X X G G – G G – G E E E E E P P P P

Sencor + Dual II Magnum 7+15 X E E E E E – E E E E E E M P P –

Sencor + Eptam 5+8 X M E E E M – E G E E E E M P P P

Sencor + Gramoxone 5+22 X G G G G G – G E E E E E – G M –

Sencor + Linuron 5+7 X G G – G G – G E E E E E P P P –

Venture L3 1 X E E E E E E E P P P P P P E P P

1. Group: Products belonging to the same group have a similar mode of action. To prevent resistance to a product, avoid repeated applications of products from the same group.

2. Pre-harvest: These products are used as vine killers before harvest.3. Combinations with other herbicides are also registered. Application guidelines with other

products may vary from one province to another. Make sure to always consult the label before use.

* Efficiency of herbicide treatments may vary with time and rate of application.

Rating *

E Excellent

G Good

F Fair

P Poor

– Insufficient data

Potato Guide 2016Potato Guide 2015 09

insecticides insect Pests3 RestRictions

commeRcial name1 active inGRedient Grou

p2

Flea

bee

tle

Pota

to le

afho

pper

Colo

rado

pot

ato

beet

le

Aphi

ds4

Euro

pean

cor

n bo

rer

Othe

r lep

idop

tero

us

inse

cts

Tarn

ishe

d pl

ant b

ug

Wire

wor

m

Dela

y be

fore

ha

rves

t (da

ys)5

Secu

rity

dela

y af

ter

treat

men

t (ho

urs)

6

Max

imum

num

ber

of

app

licat

ions

7

Actara 240 sc / 25 WG thiamethoxam 4 X X X 7 12 2

Admire 240 / Alias 240 SC imidaclopride 4 X8 X8 X X 7 24 2

Assail 70 WP acetamipridre 4 X X 7 12 2

Bartlett superior 70 oil / Superior 70 oil mineral oil N/C X 14 12 10

Beleaf 50SG flonicamid 9C X 7 12 3

Clutch 50 WDG / Clothianidin chlothianidin 4A X X X 14 12 3

Closer SC sulfoxaflor 4C X 7 12 2

Concept imidacloprid + deltamethrin 3 + 4 X X X X X X 7 24 3

Coragen chlorantraniliprole 28 X X 24 12 4

Cygon 480 EC / Lagon 480 E dimethoate 1B X X X 7 36 3

Cygon 480 AG / Cygon 480 dimethoate 1B X X 7 36 3

Decis 5.0 EC deltamethrin 3 X X X X X X 1 12 3

Delegate spinetorame 5 X X 7 12 3

Diazinon / Diazol diazinon 1B X X X X 14 24 –

Dibrom naled 1B X X X 4 48 2

Exirel cyantraniliprole 28 X X X X X 7 12 4

Fulfill 50 WG pymetrozin 9B X 14 12 2

Furadan carbofuran 1A X X X X 7 48 2

Governor 75 WP cyromazin 17 X 14 12 2

Grapple / Grapple 2 imidaclopride 4 X X 7 24 2

Imidan 50 W / Imidan 70 WP phosmet 1B X X X X 7 120 5

Lannate methomyl 1A X X X 3 12 1

Lorsban / Warhawk 480 EC / Nufos 4E chlorpyrifos 1B X X X 7 24 1

Malathion / Fyfanon 50 EC malathion 1B X X X 3 24 1

Matador / Warrior / Silencer 120 EC lambda-cyhalothrin 3 X X X X X 7 24 3

Movento 240 SC / 150 OD spirotetramat 23 X 7 12 2

Novodor Bacillus thuringiensis 11C X 0 4 –

Orthene acephate 1B X X X X 21 24 4

Pyrifos 15 G chlorpyrifos 1B X 70 24 1

Pyrinex 480 EC / Chlorpyrifos 480 EC chlorpyrifos 1B X X X 7 24 1

Pounce /Ambush 500 EC / Perm-Up permethrin 3 X X X X X 1 24 1

Pro Malathion 50 EC malathion 1B X X X 3 24 1

Rimon novaluron 15 X X 14 12 2

Ripcord cypermethrin 3 X X X X 7 24 3

Sevin 50 W / 5-D / XLR / XLR Plus carbaryl 1A X X X X X 7 24 –

Sevin SL carbaryl 1A X X X 7 24 –

Success 480 EC / Entrust spinosad 5 X X 7 12 1-3

Sivanto prime flupyradifurone 4D X X 7 24 3

Superior 70 Oil mineral oil N/A X9 14 12 10

Surround WP kaolin N/A X 0 0 –

Thimet 15-G phorate 1B X 90 48 1

Thionex EC / Thionex 50 WSP phosmet 1B X X X X 5 120 5

Twinguard sulfoxaflor + spinetoram 4C + 5 X X X 7 12 2

Up-Cyde 2.5 EC cypermethrin 3 X X X X 7 12 3

Vydate oxamyl 1A X X X X X 7 72 2

1. Commercial name: Many brands and/or formulations with the same active ingredient may be available. 2. Group: Classification of insecticides according to their mode of action. Products from the same group have a similar mode of action.

To prevent resistance to a product, repeated applications of products from the same group must be avoided.3. Insect controlled: The insects for which a product is registered, as stated on the label. These insects may vary depending on the

brand and the active ingredient. Check the label to make sure the insect pest is included on the list.4. Aphids: Many species of aphids can take over the potatoes. For more information about the species of aphids that are controlled, check the label. 5. Delay before harvest: The number of days that must elapse between the last insecticide application and the harvest.6. Security delay after treatment: The period to respect between the application and the time when workers can return to the field.7. Maximum number of applications: The maximum number of times the insecticide can be applied per season as listed on the label. It is the

number of ground applications; verify for aerial applications. Empty spaces mean that there is no restriction on the label.8. When the insecticide is applied in the furrow.9. This product has a repulsion action toward the insect.

0110 Potato Guide 2016

Mention maximum residue levels (MRLs) to a grower or a chemical company representative, and you’re likely to receive a frustrated response. In spite of trade deals between continental jurisdictions, the MRL issue continues to be a stick in the cogs of the smooth operation of trade agreements. The Trans-Pacific Partnership (TPP) or the Comprehensive Economic and Trade Agreement (CETA) aside, MRLs continue to confound open trade around the world.

There are two camps in Canada affected by this issue: the horticulture sector, which has been front and centre for the past few years, and the grains sector, which is early in its dealings yet trying to stay ahead of the tolerances and barriers among trading nations. The struggle for each is in making sense of a principle that has few if any standards.

Much of the challenge in dealing with MRLs comes on two levels. The first is in establishing the tolerance levels for registered chemistries, a process that can be complicated at several stages. The science of detection in the past 30 years has advanced from parts per million to parts per billion, and in certain applications, parts per trillion. Yet as the science has advanced, many of the countries that Canada trades with have not done the same with their tolerance levels and can apply strict zero tolerances, making things unpredictable and a stumbling block on trade relations.

The second factor is the backlog of registrations by Codex Alimentarius, a combined agency of the World Health Organization and the United Nations’ Food and Agriculture Organization (FAO). Codex oversees the development of har-monized food safety standards and fair business practices, yet applications for MRLs can sit for up to four years during which countries might be trading commodities based on mutually recognized and agreed-upon standards. At the end of that backlog period, it’s possible that Codex will establish a different MRL on a crop, even though it’s working with the same data provided by the applicant.

Negotiating tacticTo be clear, this has nothing to do with food safety and has little impact on Canada’s potato sector. It’s also affecting all growers worldwide. But the impact of MRLs has yet to be fully determined, particularly with opportunities that may result from TPP or CETA. This is a trade “mechanism” that can be used as a political device or, under less scrupulous conditions, to cut the price of commodities. Craig Hunter, who oversees crop protection and research for the Ontario Fruit and Vegetable Growers Association (OFVGA) in Guelph, Ont., knows growers who have had buyers visit to arrange a purchase only to announce they’re unwilling to take the crop because of the use of certain chemicals. At that point they might agree to “take the crop off their hands — at a significantly lower price.

Hunter adds that since Codex is so slow and so far behind, countries such as China, South Korea, Malaysia and others are

New trade agreements should be good for horticultural product exports, but fuzzy rules around MRLs could become non-tariff barriers

By ralPh Pearce, cG Production editor

Maximum residue levels an issue that’s coming to a head

codex alimentarius oversees the development of internationally harmonized food safety standards, but there’s a backlog of tests for some newer compounds.

0111Potato Guide 2016

setting their own residue standards. That sounds proactive, but it isn’t because of the measurement capabilities, political stances or trading practices.

“If countries want to use this as a non-tariff trade barrier, they can because the equipment allows them to,” says Hunter, referring to the parts-per-trillion capabilities for detection.

TPP concernsPotato growers might not have that much to worry about with MRLs — for the time being. Most of Canada’a potato production stays at home, with most exports bound for the U.S., where MRLs are similar. Where there might be a conflict, however, is with the TPP.

“We do ship frozen and processed potatoes into certain markets, and with the Trans-Pacific Partnership, Japan has agreed to eliminate its tariffs across the board,” says Hunter, adding that South Korea (which is not part of the TPP) will eliminate tariffs as well.

“If they take those tariffs off, we have that much more room to negotiate price and it may open up market potential. But it won’t matter if there are still MRL discrepancies that are used against us.”

To make matters even more challenging, in

mid-2014 the federal government dropped its subscription to an international database that provided organizations such the OFVGA and Pulse Canada with up-to-date information on MRL lev-els in different countries. In the spring of 2015, the MRL working group (under Pulse Canada’s lead) pooled some its own funds and purchased a subscription to a database that provides every MRL from every country that has such standards. It also offers market intelligence about proposed changes, unpublished changes or speculative information from all of those countries.

“That way, we can provide our members with the most up-to-date information,” says Hunter, adding that the federal government is still trying to negotiate something for the rest of Canada. “So we’re using grower money for that informa-tion because we absolutely need it.”

Consumer concernsAnother factor that may take an increasing role is that of consumer interest — today’s consumers want to know more about food production, and not just in North America, but around the world. Gord Kurbis, director of market access and trade policy with Pulse Canada, says that could result in more MRL-

related trade disputes, particularly with some countries where there are high-profile and genuine food safety concerns.

That could lead to those countries that didn’t monitor MRLs before monitoring them now. If nothing else were to change, those involved in MRLs in Canada wouldn’t be too concerned because of the reputation for clean crops and the willingness to stand behind the compliance with relevant food safety standards around the world. But the ability to monitor at parts per billion and parts per trillion doesn’t guarantee better MRL policies or opening the door on increased trade.

“At 10 ppb, you probably don’t have any detectable residues,” says Kurbis. “But if you can measure down to one ppb, which is probably well below a level that’s biologically significant, you could be non-compliant if the importing country has a default policy which says, ‘If we don’t have a number on the books, we’re going to default to zero.’”

Another trend is that there are more coun-tries around the world that formerly used Codex as their source for MRLs to evaluate the data, coming up with a risk assessment and a maxi-mum residue limit. But they’re moving away from that process and establishing their own national approaches.

“And that would be fine if governments did a better job of talking to each other but it almost seems as though things are being done in isola-tion,” says Kurbis. “In some cases, where there are more countries moving towards national approaches and where regulators are trying to get almost identical end points in terms of consumer protection, they’re coming with approaches that are completely different. And that’s tough for trade when there are all of these misaligned standards that you have to comply with.”

The one lesson that Kurbis has taken from this process is that a more co-operative effort is needed, hence the government-industry MRL task force that Pulse Canada is spearheading. Ultimately, the goal is to make their priorities known to identify those measures they may need to manage in the future within our own value chains. They’re also trying to identify and get key MRLs needed, and identify long-term fixes for current discrepancies.

Modern testing equipment allows testing of residues to parts per trillion, but even that is theoretically more than zero.

10440804_Titan_8.125x10.75_006_R1.indd BAYER-006-4C-2016_REV1

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8.125” x 10.75”8.125” x 10.75”

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--Tiffany.Punnett

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Bayer Crop Science10440804

12-22-2015 7:18 PM12-22-2015 7:18 PM

Rodrigues, Pedro (TOR-MCL)

National Potato Guide

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