|
|
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
|
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