In This Section

2009 Supplement - Growing Greenhouse Vegetables

Author: OMAFRA Staff
Creation Date: 29 September 2009
Last Reviewed: 29 September 2009

PDF Version - 310 KB

This supplement contains updates to pesticides registered as of September 2009. For complete information, please refer to the full edition of Publication 371, Growing Greenhouse Vegetables, released in 2005

Replace Table 15-1, Table 15-2, Table 15-3, Table 15-4, Table 15-5, Table 15-6, Table 15-7 and Table 15-8 on pages 125 to 132 with the new tables below.

Ontario Emergency Use Registrations


Products that are registered as Emergency Use are not listed in these recommendations because they are only registered for limited periods of time. For an up-to-date list of Emergency Use Registrations for greenhouse vegetables, consult the OMAFRA website and click on Minor Use Program under the Pest Management and Minor Use section.

Table 15-1. Tomato Pests
PHI=Pre-harvest Interval (days)
Pesticide Rate Pest PHI Remarks
Ambush 50 EC
or Pounce EC
200 mL/1,000 L
260 mL/1,000 L
whiteflies 1 Apply to achieve thorough coverage. Repeat as necessary.
Avid 30 mL/100 L two-spotted spider mite, leafminer 3 Do not apply more than 5 applications per crop cycle.
Bioprotec

1.8 L/1,000 L water

0.9-1.8 L/1,000 L water

cabbage loopers
tomato
hornworm
0 Use diluted spray within 12 hr. Use product within 6 months of manufacture date. Addition of a wetting agent is recommended to improve distribution on foliage.

Botanigard ES

0.5-1 L/400 L
2 L/400 L

whiteflies, aphids
thrips
0 General comments for both formulations:
Botanigard ES can cause foliage damage to some varieties of plants (necrotic spots on leaves on some tomato varieties). To minimize risk of foliar damage, test product by treating a small portion of crop and observe for damage.
Re-entry period is 4 hr.
High pest populations may require 2-5 day interval applications. Do not mix more Botanigard than can be sprayed in 1 day. Spray to wet, but avoid runoff.
Do not mix with any fungicide, insecticide or adjuvant.
Store at 25 C for no more than 9 months, or at 35 C for no more than 1 month.
Botanigard WP 250-500 g/400 L
500 g - 1 kg/400 L
whiteflies, aphids
thrips
0
Confirm 240F 0.6 L/ha cabbage loopers 2 Re-entry period is 12 hr. Use application interval of at least 10 days. Do not exceed 4 applications/yr.
DDVP 20%EC 6 mL/L aphids, whiteflies 7 Use cautiously as crop damage can occur, particularly under hot, humid conditions. Thoroughly ventilate before re-entering on the day following treatment.
Dibrom 10 mL/100 m3


Apply undiluted to cold pipes, then heat to 41°C and close greenhouse for at least 4 hr.

aphids, two-spotted spider mites, whiteflies 1 This product may cause injury to flowers.Ventilate greenhouse properly before re-entering.
Dipel 2X DF 75-150 g/250 L/ 4,000 m2 cabbage loopers 0 Thorough coverage of foliage and stem is necessary. Repeat applications are needed with new hatch.
Distance 45 mL/100 L whiteflies 3 The maximum number of applications per crop cycle is 2. Make 1st application when adults begin to appear.
Restricted entry interval is 12 hr.
DynoMite 284 g/ha
using 1,000 L water/ha
two-spotted spider mites 2 The maximum number of applications per crop cycle is 2. Apply at intervals of at least 28 days.
Endeavor 50 WG 100-200 g /ha in a minimum of 1,000 L water/ha green peach aphid, melon aphid 3 Do not apply more than 2 applications per crop cycle/year/greenhouse. Do not repeat applications for at least 7 days.
Floramite SC 133 mL/400 L two-spotted spider mites 0 Only 2 applications per crop cycle are allowed.
Restricted entry interval is 12 hr.
Foray 48B 80-200 mL/1,000 m2 cabbage loopers 0  
Forbid 240 SC 30-50 mL/100 L two-spotted spider mites, whiteflies 3 Maximum number of applications per crop cycle is 2.
Restricted entry interval is 12 hr.
Intercept 16 g/80 L water/
1,000 mature plants
whiteflies, aphids 1 Do not apply more than once per season. There may be repellent effects on bumble bees and negative effects on some beneficials.
Insecticidal Soap 1-2 L/100 L aphids, two-spotted spider mites, whiteflies, earwigs, psyllids 5 This product may cause damage to flowers under high temperature conditions.
Nicotine Smoke 1 can/300 m3 aphids, thrips 3 Ventilate greenhouse properly before re-entering.
Sluggo 25-50 kg/ha
(2.5-5 g/m2)
slugs and snails   Re-apply bait as needed or at least every 2 weeks if slugs and snails continue to be a problem.
Thiodan 4 EC
Thiodan 50 WP
1.25-1.5 L/1,000 L
1-1.5 kg/ha
aphids, whiteflies 2  
Tristar 70 WSP 15 packs/2 ha whiteflies 1 A maximum of 2 applications per year per greenhouse is allowed.
Apply through drip irrigation to the growing media; this is the only approved application method.
3M Sprayable Tomato Pinworm Pheromone 200 mL/ha tomato pinworm   Repeat applications are dependent on pest pressure and should, in general, be done 3-4 weeks apart.
Restricted entry interval is 12 hr.
Vectobac 2-8 L/1,000 L fungus gnats 0 Do not mix and apply with fertilizers or fungicides containing copper or chlorine as this may neutralize the active ingredients..
Vendex 50W 50 g/100 L two-spotted spider mites 5  


Table 15-2. Tomato Diseases
PHI = Pre-harvest Interval (days)
Pesticide Rate Disease PHI Remark
Botran 75WP 1.75 kg/1,000 L Botrytis grey mould 1 Seedlings may be injured by drenching.
Decree 1.5 kg/ha Botrytis grey mould 1 Do not make more than 3 applications per crop cycle
Fixed Copper 50W 3 kg/1,000 L/ha bacterial canker   Apply early in the season and repeat at 7 to10-day intervals
Maestro 80DF 1.25 kg/1,000 L
apply 50-85 L/100 m2
damping-off in seedlings   Re-entry interval is 48 hr
Manzate DF and Manzate Pro-Stick 2.4 kg/ha early and late blight, septoria leaf spot 7  
MilStop 5.6 kg/ha powdery mildew 0 Do not mix with with other soluble fertilizers or pesticides; this product is not compatible with mild alkaline solutions. Addition of surfactant or wetting agent is not required.
Restricted entry interval is 4 hr.
Mycostop Immediately after transplanting:
10-50 mg/plant or 20-100 mL/plant of 0.05% suspension
Fusarium spp. root diseases; stem rot 0 Repeat treatments at intervals of 3-6 weeks depending on disease pressure.
Nova 340 g/ha
(1,000 L water/ha)
powdery mildew 3 Apply no more than 2 applications/yr.
Prestop 125-250 mL of 0.5% suspension/
10 L of growth media, OR 100 L of 0.5% suspension/
2,000 plants
Pythium sp., Rhizoctonia solani   Repeat applications every 3 to 6 weeks
Viability of contents in unopened packets, stored under cool (approx. 4°C), dry conditions, is 12 months. Use entire contents of opened packets on the same day.
Restricted entry interval is 4 hr.
Prestop Apply enough 0.5% suspension to wet plants, but not to run-off. Botrytis cinerea   Repeat applications every 3 to 4 weeks
Viability of contents in unopened packets, stored under cool (approx. 4°C), dry conditions, is 12 months. Use entire contents of opened packets on the same day.
Restricted entry interval is 4 hr.
Previcur N 10 mL/10 L of water and apply this solution at rate of 100-200 mL/ plant. Use higher rate for 2nd and 3rd applications. Pythium root rot 5 A maximum of 4 applications per crop cycle is allowed-no more than 2 applications on seedlings, and no more than 2 applications after transplanting.
Occasional slight damage may occur following overhead drenching of recently planted seedlings.
Pristine WG 1.6 kg/ha in a minimum water volume of 250 L/ha Botrytis grey mould,
powdery mildews (Oidium lycopersici, Leveillula taurica, Erysiphe polygoni)
0 Do not apply more than once per crop cycle.
Do not apply this product using any type of foggers or misters.
Revus 400-600 mL/ha Late blight (Phytophthora infestans) 1 Do not apply more than 4 applications per season.
Use of a non-ionic adjuvant (0.125% v/v) is recommended.
Rhapsody ASO 1.0-2.0 L/100 L water Bacterial blight (Pseudomonas syringae) 0 Apply preventively or in early stages of disease development. Repeat as necessary every 7-10 days.
Maintain agitation during mixing and application to assure uniform coverage.
Do not mix in spray tank with pesticides, surfactants or fertilizers.
RootShield Drench 60-90 g/100 L Pythium, Rhizoctonia, Fusarium   These products are effective when the root zone temperature exceeds 10°C.
RootShield Granules 600 g/m3
planting mix or soil
Pythium, Rhizoctonia, Fusarium   These products are effective when the root zone temperature exceeds 10°C.
Rovral 50WP 1 kg/1,000 L Botrytis grey mould 2  
Sulphur (Bartlett's Microscopic Sulphur 92%) 750 g/1,000 L/ha powdery mildew 1 A maximum of 10 applications per crop cycle is allowed. This product may cause slight foliage damage.
Supra Captan 80W 63-107 g/100 m2
as a soil treatment
damping off, fungus root rot diseases   Use 1.25 kg per 1,000 L water and apply at rates of 50-85 L /100 m2. Work into the upper 7.5-10 cm of soil before planting.
Re-entry interval is 48 hr.

 

Table 15-3. Cucumber Pests
PHI = Pre-harvest Interval (days)
Pesticide Rate Pest PHI Remarks
Ambush 50 EC
or Pounce EC
200 mL/1,000 L
260 mL/1,000 L
whiteflies 1 Apply to achieve thorough coverage. Repeat as necessary.
Avid 30 mL/100 L two-spotted spider mite, leafminer 3 No more than 5 applications per crop cycle are allowed.
Bioprotec 1.8 L/1,000 L water cabbage loopers 0 Use diluted spray within 12 hr. Use product within 6 months of manufacture date. Addition of a wetting agent is recommended to improve distribution on foliage.

Botanigard ES

0.5-1 L/400 L
2 L/400 L

whiteflies, aphids
thrips
0 General comments for both formulations:
Botanigard ES can cause foliage damage to some varieties of plants (necrotic spots on leaves on some tomato varieties). To minimize risk of foliar damage, test product by treating a small portion of crop and observe for damage.
Re-entry period is 4 hr.
High pest populations may require 2-5 day interval applications. Do not mix more Botanigard than can be sprayed in 1 day. Spray to wet, but avoid runoff.
Do not mix with any fungicide, insecticide or adjuvant.
Store at 25 C for no more than 9 months, or at 35 C for no more than 1 month.
Botanigard WP 250-500 g/400 L
500 g-1 kg/400 L
whiteflies, aphids
thrips
0
DDVP 20%EC 6 mL/L aphids, whiteflies 7 Use cautiously as crop damage can occur, particularly under hot, humid conditions. Thoroughly ventilate before re-entering on the day following treatment.
Dibrom 10 mL/100 m3
Apply undiluted to cold pipes, then heat to 41°C & close greenhouse for at least 4 hr.
aphids, spider mites, whiteflies, mealy bugs, leafrollers 1 This product may cause injury to flowers.
Ventilate greenhouse properly before re-entering.
Distance 45 mL/100 L whiteflies 3 The maximum number of applications per crop cycle is 2. Make 1st application when adults begin to appear.
The restricted entry interval is 12 hr.
DynoMite 284 g/ha
1,000 L water/ha
two-spotted spider mites 2 Maximum number of applications per crop cycle is 2. Apply at intervals of at least 28 days.
Floramite SC 133 mL/400 L two-spotted spider mites 1 Only 2 applications per crop cycle are allowed.
Restricted entry interval is 12 hr.
Foray 48B 80-200 mL/1,000 m2 cabbage loopers 0  
Forbid 240 SC 30-50 mL/100 L two-spotted spider mites, whiteflies 3 The maximum number of applications per crop cycle is 2.
Restricted entry interval is 12 hr.
Intercept 16 g/80 L water/
1,000 mature plants
whiteflies, aphids 1 Do not apply more than once per season. There may be negative effects on some beneficials.
Insecticidal Soap 1-2 L/100 L aphids, two-spotted spider mites, whiteflies, earwigs, psyllids 5 This product may cause damage to plant under high temperature conditions.
Nicotine Smoke 1 can/300 m3 aphids, thrips 3 Ventilate greenhouse properly before re-entering.
Sluggo 25-50 kg/ha
(2.5-5 g/m2)
slugs and snails   Re-apply bait as needed or at least every 2 weeks if slugs and snails continue to be a problem.
Thiodan or Thionex 4 EC 1.25-1.5 L/1,000 L aphids, whiteflies 2 Spray when insects are first observed.
Thiodan or Thionex 50 WP 1-1.5 kg/ha aphids, whiteflies 2 Spray when insects are first observed.
Vectobac 2-8 L/1,000 L fungus gnats 0 Do not mix and apply with fertilizers or fungicides containing copper or chlorine, as this may neutralize the active ingredients.
Vendex 50W 50 g/100 L two-spotted spider mites 3  

 

Table 15-4. Cucumber Diseases
PHI = Pre-harvest Interval (days)
Pesticide Rate Disease PHI Remarks
MilStop 5.6 kg/ha powdery mildew 0 Do not mix with with other soluble fertilizers or pesticides; this product is not compatible with mild alkaline solutions. Addition of surfactant or wetting agent is not required.
Restricted entry interval is 4 hr.
Mycostop Immediately after transplanting:
10-50 mg/ plant or
20-100 mL/plant of 0.05% suspension
Fusarium, root diseases, stem rot 0 Treatments to be repeated at intervals of 3-6 weeks depending on disease pressure.
Nova 340 g/ha powdery mildew, gummy stem blight 2 Do not apply more than 6 times per year.
Prestop 125-250 ml of 0.5% suspension/10 L of growth media, or
100 L of 0.5% suspension/
2,000 plants
Pythium sp., Rhizoctonia solani   Repeat applications every 3 to 6 weeks.
Viability of contents in unopened packets, stored under cool (approx. 4°C), dry conditions, is 12 months. Use entire contents of opened packets on the same day.
Re-entry interval is 4 hr.
  125-250 mL of 1.0% suspension/10 L of growth media, or
100 L of 1.0% suspension/
2,000 plants
Fusarium oxysporum   Repeat applications every 3 to 6 weeks.
Viability of contents in unopened packets, stored under cool (approx. 4°C), dry conditions, is 12 months. Use entire contents of opened packets on the same day.
Re-entry interval is 4 hr.
  Apply sufficient 0.5% suspension to wet plants, but not to run-off. Botrytis cinerea   Repeat applications every 3 to 4 weeks.
Viability of contents in unopened packets, stored under cool (approx. 4°C), dry conditions, is 12 months. Use entire contents of opened packets on the same day.
Re-entry interval is 4 hr.
  Apply sufficient 1.0% suspension to wet plants, but not to run-off. gummy stem blight   Repeat applications every 3 to 4 weeks.
Viability of contents in unopened packets, stored under cool (approx. 4°C), dry conditions, is 12 months. Use entire contents of opened packets on the same day.
Re-entry interval is 4 hr.
Previcur N 10 mL/10 L of water and apply this solution at rate of 100-200 mL/ plant. Use higher rate for 2nd and 3rd applications. Pythium root rot 2 The maximum number of applications per crop cycle is 4; no more than 2 applications on seedlings, and no more than 2 applications after transplanting.
Occasional slight damage may occur following overhead drenching of recently planted seedlings.
Pristine WG 1.3 kg/ha in a minimum water volume of 250 L/ha powdery mildew (Sphaerotheca fuliginea) suppression
gummy stem blight (Didymella bryoniae) suppression
0 Do not apply more than once per crop cycle.
Do not apply this product using any type of foggers or misters.
Rhapsody ASO 1.0-2.0 L/100 L water gummy stem blight (Didymella bryoniae), Cercospora leaf spot (Cercospora citrullina), Downy mildew (Pseudoperonospora cubensis), powdery mildew (Erysiphe spp., Sphaerotheca spp.) 0 Apply preventively or in early stages of disease development. Repeat as necessary every 7-10 days.
Maintain agitation during mixing and application to assure uniform coverage.
Do not mix in spray tank with pesticides, surfactants or fertilizers.
Ridomil Gold Apply 250 mL of solution (0.75-1.25 mL/10 L) at base of plant after transplanting. Pythium root rot 21 Make 1 application per crop cycle; this product cannot be used for cucumbers grown in soil.
RootShield Drench 60-90 g/100 L Pythium, Rhizoctonia, Fusarium spp.   This product is effective when the root zone temperature exceeds 10°C
RootShield Granules 600 g/m3 planting mix or soil Pythium, Rhizoctonia, Fusarium   This product is effective when the root zone temperature exceeds 10°C
Rovral 1 kg/1,000 L botrytis grey mould, gummy stem blight 2  
Sulphur (Microscopic Sulphur WP) 150 g per 100 L powdery mildew 1 Do not apply Microscopic Sulphur Fungicide if high temperature (above 25°C) and high humidity prevail or are expected during the three days following application

 

Table 15-5. Pepper Pests
PHI = Pre-harvest Interval (days)
Pesticide Rate Pest PHI Remarks
Avid 30 mL/100 L two-spotted spider mite 3  
Basudin 500 EC
or Diazinon 500
230 mL/250 L/4,000 m2
0.575 L/625 L water
aphids 5  
Bioprotec 1.8 L/1,000 L water cabbage loopers 0 Use diluted spray within 12 hr. Use product within 6 months of manufacture date. Addition of a wetting agent is recommended to improve distribution on foliage.
Botanigard ES 0.5-1 L/400 L
2 L/400 L
whiteflies, aphids
thrips
0 General comments for both formulations:
Botanigard ES can cause foliage damage to some varieties of plants (necrotic spots on leaves on some tomato varieties). To minimize risk of foliar damage, test product by treating a small portion of crop and observe for damage.
Re-entry period is 4 hr.
High pest populations may require 2-5 day interval applications. Do not mix more Botanigard than can be sprayed in 1 day. Spray to wet, but avoid runoff.
Do not mix with any fungicide, insecticide or adjuvant.
Store at 25 C for no more than 9 months, or at 35 C for no more than 1 month.
Botanigard WP 250-500 g/400 L
500 g-1 kg/400 L
whiteflies, aphids
thrips
0
Confirm 0.5 L/ha; apply in 4,000 L water/ha European corn borer 3 Ensure good coverage is achieved and apply at intervals of approximately 7 days. Do not exceed 4 applications per year. Re-entry interval is 12 hr.
Dipel 2X DF 75-150 g/250 L/ 4,000 m2 cabbage loopers 0 Thorough coverage of foliage and stem is necessary.
Distance 45 mL/100 L whiteflies 3 The maximum number of applications per crop cycle is 2. Make the 1st application when adults begin to appear.
Restricted entry interval is 12 hr.
DynoMite 284 g/ha two-spotted spider mite 3 The maximum number of applications per year is 2.
Endeavor 50 WG 100-200 g/ha in a minimum of 1,000 L water/ha green peach aphid, melon aphid 3 No more than 2 applications per crop are allowed/cycle/year/greenhouse. Do not repeat applications for at least 7 days.
Floramite SC 133 mL/400 L two-spotted spider mites 1 Make only 2 applications per crop cycle
Restricted entry interval is 12 hr.
Foray 48B 80-200 mL/1,000 m2 cabbage loopers 0  
Forbid 240 SC 30-50 mL/100 L two-spotted spider mites, whiteflies 3 The maximum number of applications per crop cycle is 2.
Restricted entry interval is 12 hr.
Insecticidal Soap 1-2 L/100 L aphids, spider mites, whiteflies, earwigs, psyllids 5 This product may cause plant damage under high temperature conditions.
Intercept 4.1 g/1,000 seedlings in a solution application rate of 8 L/100 m2 of seedling trays aphids, whiteflies 3 Apply to 2-3 week old seedlings in flats. Make one appllication per growing season.
Nicotine Smoke 1 can/300 m3 aphids, thrips 5 Ventilate greenhouse properly before re-entering.
Sluggo 25-50 kg/ha
(2.5-5 g/m2)
slugs and snails   Re-apply bait as needed or at least every 2 weeks, if slugs and snails continue to be a problem.
Thiodan 4 EC 1.25-1.5 L/1,000 L lygus bug or tarnished plant bug, aphids 2 Do not apply more than twice per season.
Tristar 70 WSP 3 water-soluble packs/1000 L water aphids 3 Do not exceed 5 packs/ha.
Maximum of 2 applications per year per greenhouse. Do not apply when bees are present in the area to be treated.
Vectobac 2-8 L/1,000 L fungus gnats 0 Do not mix and apply with fertilizers or fungicides containing copper or chlorine, as this may neutralize the active ingredients.

 

Table 15-6. Pepper Diseases
PHI = Pre-harvest Interval (days)
Pesticide Rate Disease PHI Remarks
Actinovate SP 425 g/1,100 L water For suppression of powdery mildew   Begin applications at transplant, and make subsequent applications at 7-14 day intervals.
Store at 21 C-26 C for no more than 12 months, away from direct sunlight and heat sources.
Re-entry interval is 1 hr.
Maestro 80DF 1.25 kg/1,000 L - apply 50-85 L/100 m2
damping-off in seedlings   Re-entry interval is 48 hr.
MilStop 5.6 kg/ha powdery mildew 0 Do not mix with with other soluble fertilizers or pesticides; not compatible with mild alkaline solutions. Addition of surfactant or wetting agent is not required.
Restricted entry interval is 4 hr.
Mycostop Immediately after transplanting:
10-50 mg/plant or
20-100 mL/plant of 0.05% suspension
Fusarium spp., root diseases, stem rot 0 Treatments to be repeated at intervals of 3-6 weeks depending on disease pressure.
Nova 340 g/ha
using 1,500-3,000 L water/ha
powdery mildew 3 Apply as soon as possible after initial infection and again 12 days later when disease pressure warrants control. The maximum number of applications per crop cycle is 3.
Re-entry interval is 12 hr.
Prestop 125-250 mL of
0.5% suspension/
10 L of growth media, or
100 L of 0.5% suspension/
2,000 plants
Pythium sp., Rhizoctonia solani   Repeat applications every 3 to 6 weeks.
Viability of contents in unopened packets is 12 months, stored under cool (approx. 4 C), dry conditions. Use entire contents of opened packets on the same day.
Re-entry interval is 4 hr.
  Apply enough 0.5% suspension to wet plants, but not to run-off. Botrytis cinerea   Repeat applications every 3 to 6 weeks.
Viability of contents in unopened packets is 12 months, stored under cool (approx. 4 C), dry conditions. Use entire contents of opened packets on the same day.
Re-entry interval is 4 hr.
Previcur N 10 mL/10 L of water Apply 100-200 mL/ plant. Use higher rate for 2nd and 3rd applications. Pythium root rot 5 Maximum of 4 applications per crop cycle-no more than 2 applications on seedlings, and no more than 2 applications after transplanting.
Occasional slight damage may occur following overhead drenching of recently planted seedlings.
Rhapsody ASO 1.0-2.0 L/100 L water grey mould (Botrytis cinerea), bacterial spot (Xanthomonas campestris), bacterial speck (Pseudomonas syringae) 0 Apply preventively or in early stages of disease development. Repeat as necessary every 7-10 days.
Maintain agitation during mixing and application to assure uniform coverage.
Do not mix in spray tank with pesticides, surfactants or fertilizers.
Sulphur (Bartlett's Microscopic Sulphur 92%) 543-760 g/1,000 L/ha powdery mildew   Apply as required on a minimum of 14-day interval for up to 10 applications per crop cycle.
Supra Captan 80W 63-107 g/100 m2 as a soil treatment damping off, fungus root rot diseases   Use 1.25 kg per 1,000 L water and apply at rates of 50-85 L /100 m2. Work into the upper 7.5-10 cm of soil before planting.


Table 15-7. Lettuce Pests
PHI = Pre-harvest Interval (days)
Pesticide Rate Pest PHI Remarks
Bioprotec 1.8 L/1,000 L water cabbage loopers 0 Use diluted spray within 12 hr. Use product within 6 months of manufacture date. Addition of a wetting agent is recommended to improve distribution on foliage.
Botanigard ES 0.5-1 L/400 L
2 L/400 L
whiteflies, aphids
thrips
0 General comments for both formulations:
Botanigard ES can cause foliage damage to some varieties of plants (necrotic spots on leaves on some tomato varieties). To minimize risk of foliar damage, test product by treating a small portion of crop and observe for damage.
Re-entry period is 4 hr.
High pest populations may require 2-5 day interval applications. Do not mix more Botanigard than can be sprayed in 1 day. Spray to wet, but avoid runoff.
Do not mix with any fungicide, insecticide or adjuvant.
Store at 25 C for no more than 9 months, or at 35 C for no more than 1 month.
Botanigard WP 250-500 g/400 L
500 g-1 kg/400 L
whiteflies, aphids
thrips
0
Citation 75WP 75 g/570 L water fungus gnats 14 Do not exceed 1010 L spray solution per ha. No more than 4 applications per growing season. Allow 7 days between applications.
Re-entry period is 12 hr.
Confirm 240F 0.6 L/ha cabbage loopers 14 Re-entry period = 12 hr. Application interval 10-14 days. Do not exceed 2 applications/ year.
Foray 48B 80-200 mL/1,000 m3 cabbage loopers 0  
Insecticidal Soap 1-2 L/100 L aphids, spider mites, whiteflies, earwigs, psyllids 5 May cause damage to plant under high temperature conditions.
Intercept 60WP   aphids 21  
Malathion 25W 2.75-5.5 kg/ha aphids, caterpillars, spider mites, thrips, whiteflies

leaf = 21

head = 7

Do not apply more than twice per season.
Matador 120 EC 83 mL/ha cabbage loopers 3 Do not apply more than 2 applications per year. Best used against early stages of loopers.
Nicotine Smoke 1 can/300 m3 aphids, thrips 7 Ventilate greenhouse properly before re-entering.
Thiodan 4 EC 1.25-1.5 L/1,000 L aphids 14 Only one application per crop; low volume mist or high volume spray.
Vectobac 2-8 L/1,000 L fungus gnats 0 Do not mix and apply with fertilizers or fungicides containing copper or chlorine, as this may neutralize the active ingredients.


Table 15-8. Lettuce Diseases
PHI = Pre-harvest Interval (days)
Pesticide Rate Disease PHI Remarks
Decree 1.5 kg/ha Botrytis grey mould 3 Do not make more than 2 applications per crop cycle.
Prestop 125-250 mL of 0.5% suspension/10 L of growth media, or
100 L of 0.5% suspension/
2,000 plants
Pythium sp., Rhizoctonia solani   Repeat applications every 3 to 6 weeks.
Viability of contents in unopened packets is 12 months, stored under cool (approx. 4 C), dry conditions. Use entire contents of opened packets on the same day.
Re-entry interval is 4 hr.
  Apply sufficient 0.5% suspension
to wet plants,
but not to run-off.
Botrytis cinerea   Repeat applications every 3 to 4 weeks.
Viability of contents in unopened packets is 12 months, stored under cool (approx. 4 C), dry conditions. Use entire contents of opened packets on the same day.
Re-entry interval is 4 hr.
Revus 400-600 mL/ha

downy mildew

blue mold

7  
Rhapsody ASO 1.0-2.0 L/100 L water Sclerotinia rot (Sclerotinia sclerotiorum, S. minor), grey mould (Botrytis cinerea), powdery mildew (Erysiphe cichoracearum), downy mildew (Bremia lactucae) 0 Apply preventively or in early stages of disease development. Repeat as necessary every 7-10 days.
Maintain agitation during mixing and application to assure uniform coverage.
Do not mix in spray tank with pesticides, surfactants or fertilizers.
Rovral 1 kg/1,000 L grey mould 14  

 

Replace Appendix A with the following:

Appendix A.
OMAFRA Staff
Staff Address Contact E-mail
Gillian Ferguson
Greenhouse Vegetable IPM Specialist
Greenhouse and Processing Crops Research Centre
2585 County Road 20
Harrow, ON N0R 1G0
Tel: 519-738-1258
Fax: 519-738-4565
gillian.ferguson@ontario.ca
Shalin Khosla
Greenhouse Vegetable Specialist
Greenhouse and Processing Crops Research Centre
2585 County Road 20
Harrow, ON N0R 1G0
Tel: 519-738-1257
Fax: 519-738-4565
shalin.khosla@ontario.ca

Agricultural Information Contact Centre
Provides province-wide, toll-free technical and business information to commercial farms, agri-businesses and rural businesses.


1 Stone Rd. W.
Guelph, ON N1G 4Y2

Tel: 519-826-4047
Toll-free: 1-877-424-1300
Fax: 519-826-7610
E-mail: ag.info.omafra@ontario.ca

Guelph - ServiceOntario
1 Stone Rd. W.
Guelph, ON N1G 4Y2

Tel: 519-826-3100 (Staff Directories)
Toll-free: 1-888-466-2372

Replace Appendix F with the following:

Appendix F.
Ontario Ministry of Environment - Regional Offices Contact Information
REGION
County
Address Telephone/Fax
CENTRAL REGION
Toronto, Halton, Peel York, Durham
5775 Yonge St., 8th Floor
Toronto, ON M2M 4J1
Tel: 416-326-6700
Toll-free: 1-800-810-8048
Fax: 416-325-2459
WEST-CENTRAL REGION
Haldimand-Norfolk, Niagara, Hamilton-Wentworth, Dufferin, Wellington, Waterloo, Brant
Ontario Government Building
119 King St. W., 12th Floor
Hamilton, ON L8P 4Y7
Tel: 905-521-7640
Toll-free: 1-800-668-4557
Fax: 905-521-7820
EASTERN REGION
Frontenac, Hastings, Lennox & Addington, Prince Edward, Leeds & Grenville, Prescott & Russell, Stormont/Dundas & Glengarry, Haliburton, Peterborough, Victoria, Northumberland, Renfrew, Ottawa-Carleton, Lanark, (Townships of Airy, Murchison, Dickens, Lyell and Sabine)
Box 22032
1259 Gardiners Rd., Unit 3,
Kingston, ON K7M 8S5
Tel: 613-549-4000
Toll-free: 1-800-267-0974
Fax: 613-548-6908
SOUTHWESTERN REGION
Elgin, Middlesex, Oxford, Essex, Kent, Lambton, Bruce, Grey, Huron, Perth, Simcoe
733 Exeter Rd., 2nd Floor
London, ON N6E 1L3
Tel: 519-873-5000
Fax: 519-873-5020
Toll-free: 1-800-265-7672
NORTHERN REGION Thunder Bay Regional and District Office
435 James St. S., Suite 331
Thunder Bay, ON P7E 6S7
Tel: 807-475-1205
Fax: 807-475-1754
Toll-free: 1-800-875-7772
  Sudbury District Office
199 Larch St., Suite 1201
Sudbury, ON P3E 5P9
Tel: 705-564-3237
Fax: 705-564-4180
Toll-free: 1-800-890-8516
  Timmins District Office
Ontario Government Complex
Hwy 101 East
P.O. Bag 3080
South Porcupine, ON P0N 1H0
Tel: 705-235-1500
Fax: 705-235-1520
Toll-free: 1-800-380-6615
Standards Development Branch Pesticides Section
40 St. Clair Ave. W., 7th floor
Toronto, ON M4V 1M2
Tel: 416-327-5519
Fax: 416-327-2936
Approvals Branch Pesticides Licensing
2 St. Clair Ave. W., 12A floor
Toronto, ON M4V 1L5
Tel: 416-314-8001
Toll-free: 1-800-461-6290
Fax: 416-314-8452
  • To obtain copies of this or any other OMAFRA publication, please order:
  • online at www.serviceontario.ca/publications
  • by phone through the ServiceOntario Contact Centre,
  • Monday to Friday, 8:30 AM to 5:00 PM
    • 416-326-5300
    • 416-326-3408 (TTY)1-800-668-9938, toll-free across Canada
    • 1-800-368-7095 (TTY), toll-free across Ontario
  • in person at ServiceOntario Centres across Ontario

For more information:
Toll Free: 1-877-424-1300
Local: (519) 826-4047
E-mail: ag.info.omafra@ontario.ca