Vegetable Production Guide

Lettuce
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Table 2 Lettuce Insect Control

This section was updated - 22 January 2018

Table 2 Lettuce Insect Control

 

Product

Rate

PHI*

Comments

Aphids

Lagon 480 E

(dimethoate)
700 mL/ha
(280 mL/acre)
7
  • DO NOT USE ON HEAD LETTUCE.
  • No more than 2 applications per season.
  • Group 1B insecticide.

Dibrom

(naled)

Group 1B
1.1 to 1.65 L/ha
(440 to 665 mL/acre)
4
  • Apply in 100 to 300 L/ha (40 to 120L/acre) of water.
  • Application during hot weather may result in crop injury
  • Do not apply in temperature over 32°C.
  • Do not enter treated area for 48 hours.

Orthene 75 SP

(acephate)

Group 1B
563 to 825 g/ha
(228 to 335 g/acre)
7
  • USE ON HEAD LETTUCE ONLY.
  • Do not feed trimmings to livestock.
  • Do not apply more than 4 times per season.
  • Do not enter treated area for 1 day. For activities involving significant foliar contact, gloves and cotton coveralls must be worn for 2 weeks.

Admire 240 F

(imidacloprid)

Alias 240 C

(imidacloprid)

Group 4
Pre-transplant
tray plug drench:
10.2 mL/1000 plants
21
  • Gloves must be worn at transplanting.
  • Do not apply more than once per season as a soil application.
  • Do not follow with any subsequent field drench or foliar application of a group 4 insecticide.
Post-transplant
field drench:

 
Admire 240 F:

6.0 mL per 100 mL row

(see Rate Conversion Chart of label for row spacing calculations)

Alias 240 SC:
See label for field drench rate and directions.
21
Admire 240 F
  • Use one of the following methods:
  • Apply specified dosage in 2000 L/ha (800 L/ac) of water as a narrow (5 cm or less) surface band over the seedline during planting.
  • Seedlings or established transplants: apply in 200 L/ha (80 L/ac) of water as a subsurface side-dress on both sides of each row. Product must be incorporated into the root zone.
  • Post-seeding drench or transplant-water drench: use higher water volumes to thoroughly wet the soil.
  • Do not apply more than once per season.
  • Do not follow with any subsequent foliar application of a group 4 insecticide.
  • Alias 240 SC - see label for field drench rate and directions.
Foliar spray:
200 mL/ha
(80 mL/acre)
7
  • Repeat using a 5 day interval.
  • Do not make more than 2 foliar applications per crop per season.
  • Do not apply following a plug treatment, soil application or seed treatment of a group 4 insecticide.
  • Toxic to bees.  Do not apply if bees are visiting the treatment area.
  • Do not re-enter treated area for 24 hours.

Assail 70 WP

(acetamiprid)

Group 4
56 to 86 grams/ha
(23 to 35 grams/acre)

Apply in 200 L/ha (80 L/acre) of water
7
  • Also controls pea leafminer using the high rate.
  • Thorough coverage is important.
  • Repeat at a 7 day interval.
  • Do not use more than 5 times per season, do not exceed a total of 430g of product per hectare (174 g/acre) per season.
  • Do not enter treated area for 12 hours.

Actara 240 SC

(thiamethoxam)
 
Group 4
375 to 625 mL/ha
(152 to 253 mL/acre)
N/A
  • Make an in-furrow application at the seeding or transplant depth or a narrow surface band above the seedline during planting.
  • For a surface application, incorporate to the seeding depth with irrigation within 24 hours after planting.
  • Do not apply more than 625 mL/ha (253 mL/acre) per year.
  • Do not follow with any subsequent foliar applications of a group 4 insecticide.
  • Do not re-enter treated area for 12 hours.
  • Also controls leafhoppers and dipteran leafminers.

Actara 25 WG

(thiamethoxam)

Group 4
105 g/ha
(42 g/acre)

Apply in 100L/ha (40 L/acre) of water
7
  • Maximum of 2 foliar applications per season.
  • Repeat using a 7 day interval.
  • Do not use if following an in-furrow or soil application of Actara 240 SC.
  • Highly toxic to bees.  Do not apply if flowering weeds are present and if bees are foraging in or adjacent to the treatment area.
  • Do not re-enter treated area for 12 hours.

Closer SC

(sulfoxaflor)
 
Group 4C
100 to 150 mL/ha
(40 to 60 mL/acre)
 
Apply in 100 L/ha (40 L/acre) of water
3
  • Do not use in greenhouses.
  • Do not make more than 2 applications per growing season.
  • Repeat at a 7 day interval.
  • Do not apply more than 300 mL/ha (120 mL/acre) per growing season.
  • Do not apply during crop flowering period or when flowering weeds are present in treatment area.
  •  Observe a plantback interval of 30 days for crops not on this label. 
  • Do not enter treated area for 12 hours.

Sivanto Prime

(flupyradifurone)

 

Group 4D

500 to 750 mL/ha
(200 to 300 mL/acre)

Apply in 100 L/ha (40 L/acre) of water
1
  • Do not use in the greenhouse.
  • Repeat at a 7 day interval.
  • Do not exceed a total of 2000 mL/ha (810 mL/acre) of product per season.
  • Toxic to bees.  Do not apply if flowering weeds are present and bees are visiting the treatment area.
  • Do not enter treated areas for 12 hours.

Fulfill

(pymetorzine)

Group 9B
193 g/ha
(78 g/acre)

Apply in 100L/ha (40L/acre) of water.
14
  • Maximum of 2 applications per season.
  • Apply at a 7 day spray interval.
  • Apply with a non-ionic adjuvant such as: Agral 90Ag SurfLI 700, or Sylgard 309 to improve performance under drought conditions.
  • Observe a 30 day plant back restriction for all crops.
  • Do not enter treated area for 12 hours.

Beleaf 50SG

(flonicamid)

Group 9C
120 to 160 g/ha
(50 to 65 g/acre)

Apply in 94 L/ha (38 L/acre) of water
0
  • Repeat at 7 day intervals.
  • Do not apply more than 3 times per year.
  • Do not apply more than 480 g/ha (200 g/ac) of product per season.
  • Do not enter treated area for 12 hours.

Movento 240 SC

(spirotetramat)

Group 23
220 to 365 mL/ha
(90 to 150 mL/acre)

Apply in 300 L/ha (120 L/acre) of water
3
  • Repeat at 7 day intervals as needed.
  • Maximum allowed per crop season: 730 mL/ha (295 mL/acre).
  • Do not enter treated area for 12 hours.
  • Movento 240 SC should be used with one of the following adjuvants: non-ionic (eg. Agral 90 or Ag-Surf) or methylated seed oil (eg. Hasten).

Exirel

(cyantraniliprole)
 
Group 28
500 to 1500 mL/ha
(200 to 605 mL/acre)
 
Apply in 100 L/ha (40 L/acre) of water
1
  • Also controls cabbage looper and leafminer.  See sections of this table.
  • Do not make more than 4 applications per growing season.
  • Repeat at 5 day intervals.
  • Do not apply more than 4.5 L/ha (1.8 L/acre) per season.
  • Use with an adjuvant such as Hasten NT at a rate of 0.25% v/v or MSO Concentrate with Leci-Tech at a rate of 0.5% v/v.
  • Toxic to bees and certain beneficial insects.  Apply early in the morning or late in the evening when bees are not active.
  • See aphid control comments (this table) for tank-mix precautions and plantback intervals.
  • Do not enter treated area for 12 hours.

Leafhoppers

Mako (Ripcord)

(cypermethrin)
125 mL/ha
(50 mL/acre)
14
  • Apply up to 4 applications at 7 to 14 day intervals.
  • Very toxic to bees. Avoid spraying when bees are foraging.
  • Group 3 insecticides.

Up-Cyde 2.5 EC

(cypermethrin)
200 mL//ha
(80 mL/acre)

Pea Leafminer (Liriomyza huidobrensis)

Citation 75WP

(cyromazine)

Group 17
188 g (2.5 soluble bags)/ha 
(76 g (1 soluble bag)/acre

Apply in 200 L/ha (80 L/acre) of water
7
  • Apply as a foliar spray at first appearance of larvae.
  • Re-apply as needed, allowing at least 7 days between applications.
  • Do not make more than 5 applications per season.

Coragen

(chlorantraniliprole)

Group 28
250 to 375 mL/ha
(100 to 150 mL/acre)

Apply in 100 L/ha (40 L/acre) of water.
1
  • Repeat at 3 day intervals.
  • Do not make more than 4 applications per season.
  • Do not apply more than 1 L/ha (400 mL/ac) per season.
  • For control of Black Cutworm, use the lower rate and apply to smaller plants or when lower portions of the plant can receive adequate coverage.
  • Do not re-enter treated area for 12 hours.

Exirel

(cyantraniliprole)
 
Group 28
1000 to 1500 mL/ha
(405 to 605 mL/acre)
 
Apply in 100 L/ha (40 L/acre) of water
1
  • Controls Dipteran leafminer larvae.
  • Also controls aphids and cabbage looper.  See sections of this table.
  • Do not make more than 4 applications per growing season.
  • Repeat at 5 day intervals.
  • Do not apply more than 4.5 L/ha (1.8 L/acre) per season.
  • Use with an adjuvant such as Hasten NT at a rate of 0.25% v/v or MSO Concentrate with Leci-Tech at a rate of 0.5% v/v.
  • Toxic to bees and certain beneficial insects.  Apply early in the morning or late in the evening when bees are not active.
  • See aphid control comments (this table) for tank-mix precautions and plantback intervals.
  • Do not enter treated area for 12 hours.

Loopers

Lannate Toss-N-Go


(methomyl)

Group 1A
0.5 to 1.0 kg/ha
(200 to 400 g/acre)
7
  • Use the low rate when plants are small and spray is directed along rows.
  • Do not make more than 3 applications per season.
  • Apply in 250 to 850 L/ha (100 to 345 L/acre) of water.
  • Early morning or late evening applications are recommended.

Orthene 75 SP

(acephate)

Group 1B
750 to 1100 g/ha
(300 to 445 g/acre)

Apply in 225 to 1,650 L/ha (90 to 665 L/acre) of water
7
  • USE ON HEAD LETTUCE ONLY.
  • Do not feed trimmings to livestock or allow animals to graze on treated areas.
  • Do not apply more than 4 times per season.
  • Do not enter treated area for 1 day. For activities involving significant foliar contact, gloves and cotton coveralls must be worn for 2 weeks.

Malathion 85E

(malathion)

Group 1B
735 to 1345 mL/ha
(295 to 545 mL/acre)
 
Apply in 1000 L/ha (405 L/acre) of water 
Head: 3
Leaf: 14
  • Also controls aphids.
  • Do not make more than 1 application per year.
  • Provides best control at temperatures above 20°C.
  • Toxic to fish.
  • Do not apply where runoff is likely to occur.
  • Do not apply after expiry date on the container label.
  • Do not re-enter treated area for 24 hours.

Matador 120EC

(lambda-cyhalothrin)
83 mL/ha
(34 mL/acre)

Apply in 500 L/ha (200 L/acre) of water
3
  • USE ON HEAD LETTUCE ONLY.
  • Apply when insects or damage first appear.
  • Allow 7 days between applications and not more than 3 applications per year.
  • Also controls cutworms.
  • Do not enter treated areas for 24 hours.
  • Group 3 insecticides.

Silencer 120EC

(lambda-cyhalothrin)

Entrust 80 W

(spinosad)
 
smileyUsed in organics
109 g/ha
(44 g/acre)
1
  • Repeat at 7 to 10 day intervals.
  • Do not apply more than 3 times per year.
  • Do not apply when wind speeds exceed 16 km/h
  • Do not apply immediately after rainfall, or if rainfall is expected within 48 hours of application.
  • Do not enter treated area until residues have dried.
  • smileyEntrust products are OMRI-USA listed.  Check with your certification body before using in an organic operation.
  • Group 5 insecticides.

Entrust SC

(spinosad)
 
smileyUsed in organics
364 mL/ha
(147 mL/acre)

Success 480SC

(spinosad)
182 mL/ha
(74 mL/acre)

Delegate WG

(spinetoram)

Group 5
140 to 200 g/ha
(60 to 80 g/acre)
1
  • For optimal performance, final solution pH should be in the range of 6 to 8.
  • Apply at egg hatch or to small larvae.
  • Repeat at 5 day intervals.
  • Maximum of 3 applications per year.
  • Toxic to bees. Avoid spraying when bees are foraging.

XenTari WG

(Bacillus thuringiensis, subsp. aizawai)
 
Group 11
 
smileyUsed in organics
500 to 1000 g/ha
(200 to 400 g/acre)
0
  • Treat larvae at the early instar stage.
  • Repeat at 5 to 7 day intervals.
  • Use enough water to ensure full coverage but not to the point of run off.
  • Larvae must be actively feeding on treated, exposed plant surfaces.
  • Apply in the evening or on a cloudy day.
  • Do not allow spray mixture to stand in the tank for more than 12 hours.
  • When used in the greenhouse, do not re-enter treated area until the spray is dried.
  • smileyXen Tari products are OMRI-USA listed.  Check with your certiification body before using in an organic operation.

Intrepid

(methoxyfenozide)

Group 18
300 to 600 mL/ha
(120 to 240 mL/acre)

Apply in 300 L/ha (120 L/acre) of water
1
  • Apply at first sign of feeding damage.
  • Repeat at 7 to 14 day intervals.
  • Do not re-enter for 12 hours.

Coragen

(chlorantraniliprole)

Group 28
250 mL/ha
(100 mL/acre)

Apply in 100L/ha (40 L/acre) of water
1
  • Repeat at 3 day intervals.
  • Do not make more than 4 applications per season.
  • Do not enter treated area for 12 hours.

Exirel

(cyantraniliprole)
 
Group 28
250 to 500 mL/ha
(100 to 200 mL/acre)
 
Apply in 100 L/ha (40 L/acre) of water
1
  • Also controls aphids and leafminer.  See sections of this table.
  • Do not make more than 4 applications per growing season.
  • Repeat at 7 day intervals.
  • Do not apply more than 4.5 L/ha (1.8 L/acre) per season.
  • Toxic to bees and certain beneficial insects.  Apply early in the morning or late in the evening when bees are not active.
  • See aphid control comments (this table) for tank-mix precautions and plantback intervals.
  • Do not enter treated area for 12 hours.

Dipel 2X DF

(Bacillus thuringiensis)
 
smileyUsed in organics
275 to 550 g/ha
(110 - 220 g/acre)
0
  • It is most effective when insects are young.
  • Use sufficient spray volume to ensure uniform deposition on all plant surfaces.
  • smileyDipel products are OMRI-USA listed.  Check with your certiification body before using in an organic operation.

Bioprotec CAF

(Bacillus thuringiensis)
1.4 to 2.8 L/ha
(0.6 to 1.1 L/acre)

Slugs

commercial bait

(metaldehyde)
See label for rate. See Label.
  • Do not apply to leaf lettuce.
  • Treatments should be made in the evening to the soil between the rows and the headlands.
  • Avoid direct application to plants.
  • Do not apply to head lettuce after the head begins to form.

Deadline M-PS

(metaldehyde)
14 to 27.5 kg/ha
(5.6 to 11 kg/acre)
6
  • Apply as soil surface treatment.
  • Do not contaminate edible portion of the plant.
  • Do not apply directly to food crops.
  • Apply at a 14 day spray interval.
  • Do not apply more than 3 times per season.
  • Is very toxic to pets and other animals.

Sluggo

(Ferric phosphate)
 
smileyUsed in organics.
25 to 50 kg/ha
(10 to 20 kg/acre)
0
  • Best applied in evenings to moist soil.
  • Do not place in piles.
  • smileySluggo (PCP# 30025) is OMRI-Canada listed.  Check with your certiification body before using in an organic operation.

Slug and Snail Bait II

(ferric sodium EDTA)
11 – 22 kg/ha
(4.4 – 8.9 kg/acre)
0
  • Early morning or evening is best time to apply.
  • Repeat applications at 14 day intervals.

*PHI = Pre-harvest interval
= Very Toxic
BUFFERS – Refer to product label for buffer requirements. See also Pesticide Regulations and Safety section of this guide.
PESTICIDE GROUP DETAILS – see Pesticide Toxicity Table of this guide.

smileyOMRI-Canada = Organic Materials Review Institute of Canada

smileyOMRI-USA = Organic Materials Review Institute of USA

 

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