PHI


The Pest Management Regulatory Agency (PMRA) sets and monitors the Maximum Residue Levels (MRLs) of pesticides registered in Canada for application to food crops. Dosages and practices recommended in the Guide should not result in residues on fruit at harvest exceeding these MRLs. Similar spray-residue laws are in effect in other countries which import our fruit. In some countries the MRL values differ from Canadian tolerances.

Growers are warned that fruit having residue levels in excess of allowable limits may be seized under the federal Food and Drug Act. Furthermore, fruit with too high a pesticide residue indicates excessive  dosages were used or that the minimum days between last spray and harvest (pre-harvest Interval or PHI) for pesticides as recommended in this guide. Application of unregistered pesticides can lead to prosecution under the Pest Control Products Act.

Visible spray residue will prevent the marketing of fruit even if the pesticide residue is below the MRL.

The following tables list the minimum number of days between the last spray and harvest for pesticides recommended in the Guide.

NOTE: Pre-harvest intervals are subject to change. Always follow the crop PHI values shown on the label.

Pre-Harvest Intervals - Insecticides & Miticides (days)
Trade Name(s) Active Ingredient Apple Apricot Sweet Cherry Sour Cherry Peach Pear Prune Plum
Acramite bifenazate 7 7 7 7 7 X 7
Actara thiamethoxam 60 X 14 14 X 60 X
Admire imidacloprid 7 7 7 7 7 7 7
Agri-Mek  abamectin 28 X X X X 28 X
Alias imidacloprid 7 X 10 10 7 X X
Altacor chlorantraniliprole 5 1 1 1 1 5 1
Apollo clofentezine 21 X X X 21 21 X
Assail acetamiprid 7 X 7 7 X 7 X
Beleaf flonicamid 21 14 14 14 14 21 14
Bioprotec Bacillus thuringiensis 0 0 0 0 0 0 0
Calypso thiacloprid 30 X X X X 30 X
Carzol formetanate hydrochloride Use only on Nectarine – do not use past petal fall
Closer sulfoxaflor 7 7 7 7 7 7 7
Clutch clothianidin 7 7 7 7 7 7 7
Confirm tebufenozide 14 X X X X 14 X
CYD-X granulovirus 0 X X X X X X
Cygon dimethoate X X 21 21 X 28 X
Decis deltamethrin 1 X X X 1 7 X
Delegate spinetoram 7 3 5 5 1 7 3
Dipel Bacillus thuringiensis 0 0 0 0 0 0 0
Dormant Oil mineral oil Registered on all tree fruits; use dormant or prebloom as per label
Entrust spinosad 7 14 7 7 14 7 7
Envidor spirodiclofen 7 7 7 7 7 7 X
Exirel cyantraniliprole 3 3 3 3 3 3 3
Foray Bacillus thuringiensis 0 X X X X 0 X
GF-120 spinosad 0 X 0 0 X X X
Imidan phosmet 14 X X 7 14 14 14
Insecticidal soaps soap 0 0 0 0 0 0 0
Intrepid methoxyfenozide 14 7 7 7 14 14 7
Kanemite acequinocyl 14 X X X X 14 X
Lagon dimethoate X X 21 21 X 28 X
Lime Sulphur calcium polysulfide 0 X dormant dormant 0 0 dormant
Malathion malathion 3 7 3 3 7 3 3
Mako cypermethrin 7 X 2 2 2 7 2
Movento spirotetramat 7 7 7 7 7 7 7
Nealta cyflumetofen 7 X X X X 7 X
Nexter pyridaben 25 X 7 7 X 25 X
Purespray Green mineral oil 0 0 0 0 0 0 0
Rimon novaluron 14 14 14 14 14 X 14
Ripcord cypermethrin 7 X X X 7 7 X
Sivanto Prime flupyradifurone 14 14 14 14 14 14 14
Success spinosad 7 14 7 7 14 7 7
Surround kaolin 0 0 0 0 0 0 0
TwinGuard sulfoxaflur + spinetoram 7 7 7 7 7 7 7
Virosoft granulovirus 0 X X X X X X
Vydate oxamyl Non-bearing apple only

 

Pre-Harvest Intervals – Fungicides (days)
Trade Name(s) Active Ingredient Apple Apricot Sweet Cherry Sour Cherry Peach Pear Prune Plum
Aliette fosetyl al 30 X X X X X X
Allegro fluazinam 28 X X X X X X
Aprovia benzovindiflupyr 30 X X X X X X
Aprovia Top benzovindiflupyr + difenoconazole 30 X X X X 30 X
Blossom Protect Aureobasidium pullulans bloom X X X X bloom X
Bravo ZN chlorothalonil X X 40 40 60 X X
Cabrio pyraclostrobin X 10 10 10 10 X 10
Cantus boscalid X 0 0 0 0 X 0
Captan captan 7 2 2 5 2 7 2
Copper Spray copper oxychloride Apple, pear, peach, apricot, cherry – follow timing on label
Copper 53W copper sulphate 30 2 X 2 2 2 X
Cueva copper octanoate 1 1 1 1 1 1 1
Diplomat 5SC polyoxin D zinc salt 0 X X X X 0 X
Dithane mancozeb 45 X X X X X X
Double Nickel Bacillus amyloliquefaciens 0 X X X X 0 X
Elevate fenhexamid X X 1 1 1 X X
Ferbam ferbam 7 21 4 4 21 7 7
Flint trifloxystrobin 14 1 1 1 1 14 1
Fontelis penthiopyrad 28 0 0 0 0 28 0
Fracture BLAD polypeptide X 0 0 0 0 X 0
Fullback 125 flutriafol 14 X X X X X X
Funginex triforine Peaches, cherries, prunes, plums; do not apply after blossom
Indar fenbuconazole X 1 1 1 1 X 1
Inspire difenoconazole 14 X X X X 14 X
Inspire Super difenoconazole + cyprodinil 14 X X X X 14 X
Jade propiconazole X 3 3 3 3 X 3
Kasumin kasugamycin 90 X 30 30 X 90 X
Kenja 400SC isofetamid 20 1 1 1 1 X 1
Kumulus DF sulphur 1 X 1 1 1 1 1
lime-sulphur calcium polysulfide 0 X dormant dormant 0 0 dormant
Luna Tranquility fluopyram + pyrimethanil 14 X X X X 72 X
Luna Sensation fluopyram + trifloxystrobin X X 1 1 1 X 1
Maestro captan 7 2 2 5 2 7 2
Manzate Prostick mancozeb 45 X X X X X X
Milstop potassium bicarbonate X 0 X X 0 X 0
Mission 418 propiconazole X 3 3 3 3 X 3
Nova myclobutanil 14 X 1 1 1 14 X
Oxidate hydrogen peroxide 0 X 0 X X 0 X
Parasol copper hydroxide Apple, pear, apricot, peach, nectarine, cherry - follow timing on label
Phostrol phosphites 0 X X X X 0 X
Polyram metiram 45 X X X X X X
Pristine boscalid + pyraclostrobin 5 0 0 0 0 5 0
Purespray Green mineral oil 0 0 0 0 0 0 0
Quash metconazole X 14 14 14 14 X 14
Quintec quinoxyfen X 7 7 7 7 X 7
Ridomil metalaxyl Use only on non-bearing apple trees
Rovral iprodione X 1 1 1 1 X 1
Scala pyrimethanil 14 X X X X 72 X
Senator thiophanate-methyl 1 X 1 1 1 1 1
Sercadis fluxapyroxad 0 0 0 0 0 0 0
Serenade Bacillus subtilis 0 0 0 0 0 0 0
Sovran kresoxim-methyl 30 X X X X 30 X
Streptomycin streptomycin 50 X X X X 30 X
Syllit dodine 7 X 7 7 60 7 X
Tilt 250E propiconazole X 3 3 3 3 X 3
Topas 250EC propiconazole X 3 3 3 3 X 3
Vivando metrafenone X X 7 7 7 X X

 

Pre-Harvest Intervals – Herbicides (days)
Trade Name(s) Active Ingredient Apple Apricot Sweet Cherry Sour Cherry Peach Pear Prune Plum
2,4-D Amine 2,4-D 80 80 80 80 80 80 80
Aim carfentrazone 3 3 3 3 3 3 3
Alion Indaziflam 14 14 14 14 14 14 14
Authority 480 sulfentrazone 14 X X X X X X
Basagran bentazon Apple, apricot, cherry, peach, pear, nectarine: non-bearing trees
Casoron dichlobenil 0 X 0 0 0 0 0
Centurion clethodim X X 14 14 X X X
Chateau flumioxazin 60 60 60 60 60 60 60
Credit Xtreme glyphosate 30 30 30 30 30 30 30
Crush'R 480 or 540 glyphosate 30 30 30 30 30 30 30
Dual II Magnum metolachlor Apple, apricot, cherry, pear, plum: apply in spring only
Glyfos glyphostae 30 30 30 30 30 30 30
Gramoxone paraquat 1 1 1 1 1 1 1
Ignite glufosinate 40 X 14 14 40 40 40
Lontrel clopyralid 30 X X X X X X
Matrix glyphosate 30 30 30 30 30 30 30
Maverick glyphosate 30 30 30 30 30 30 30
Poast sethoxydim 30 X X X 30 30 X
Princep Nine-T simazine Apple, apricot, cherry, peach, pear, plum: apply in spring. See label.
Prowl H2O pendimethalin Apple, peach, nectarine, cherry, apricot: apply in spring only
Roundup glyphosate 30 30 30 30 30 30 30
Sandea halosulfuron 14 X X X X X X
Select clethodim X X 14 14 X X X
Sencor 75DF metribuzin 60 60 60 60 60 60 60
Simadex simazine Apple, pear: apply in spring only. See label.
Simazine 480 simazine Apple, pear: apply in spring only. See label.
Sinbar terbacil Apple and peach, spring application
Touchdown Total glyphosate 30 30 30 30 30 30 30
TriCor 75DF metribuzin Apple, apricot, peach, pear, plum, cherry - See label
Vantage Plus glyphosate 30 30 30 30 30 30 30
Venture fluazifop Apple, pear, peach, cherry, apricot, plum: one banded application per year

 

Pre-Harvest Intervals – Growth Regulators (days)

Trade Name(s) Active Ingredient Apple Apricot Sweet Cherry Sour Cherry Peach Pear Prune Plum
Amid-Thin 1-naphthalene-acetamide Apple, pear: apply according to label
Activol gibberellic acid X X 21 21 X X X
Apogee prohexadione calcium 45 X 20 20 X X X
Cilis Plus benzylaminopurine 28 X X X X 28 X
Ethrel ethephon Apple, cherry: apply according to label
Fruit-Fix NAA 5 X X X X X X
Fruitone N NAA 5 X X X X X X
FruitSize gibberellic acid X X 21 X X X X
GroSpurt gibberellic acid 14 14 21 21 14 14 14
MaxCel 6-benzyladenine 86 X X X X X X
Novagib gibberellins 28 X X X X X X
Perlan GA+benzylaminopurine 28 X X X X X X
ProGibb gibberellic acid X X 21 21 X X X
Promalin GA+benzyladenine 28 X X X X X X
Retain AVG Apple: apply 4 weeks before harvest
Sevin XLR carbaryl 75 X X X X X X