Vegetable Production Guide

Asparagus
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Table 2 Asparagus Insect Control

This section was updated - 21 June 2021

Table 2. Asparagus Insect Control

 

Product

Rate

PHI*

Comments

Asparagus Aphid

Lagon 480 E

(dimethoate)

Group 1B
2.3 L/ha 
(900 mL/acre)

Apply in 675 L/ha (275 L/acre) of water 
 N/A
  • For immature asparagus begin application mid-May.
  • For mature asparagus, begin application in July, after crop is harvested and continue at 3 to 4 week intervals until defoliation in October.
  • Do not apply more than 6 times per season.

Matador 120 EC

(lambda-cyhalothrin)

Group 3
83 mL per ha
(34 mL per acre)

Apply in 100 to 200 L/ ha (40 to 80 L per acre) of water
N/A
  • Apply post-harvest to ferns only.
  • Apply at 7 to 10 day intervals.
  • This product is very toxic to bees. Avoid spraying when bees are foraging.
  • Do not apply more than 3 times per season.
  • Do not enter treated area for 24 hours.

Assail 70WP

(acetamiprid)

Group 4
56 to 86 g/ha
(22 to 34 g/acre)

Apply in 190 L/ha (77 L/acre) of water.
1
  • Apply to new plantings and when plants are young.
  • Repeat at a 10 day interval.
  • Maximum 2 applications per season.
  • Do not apply more than 320 g/ha (130 g/acre) per growing season.
  • Toxic to bees.
  • Do not re-enter treated area for 12 hours.

Asparagus Beetle or Spotted Asparagus Beetle

Sevin XLR

(carbaryl)

Group 1A
2.5 to 6.4 L/ha 
(1.0 to 2.6 L/acre)
 2
  • Maximum of 2 applications per year.
  • Repeat at 7 day interval.
  • Use lower rate on young plants.
  • Toxic to bees.  Do not apply during the crop blooming period.
  • Do not enter treated area for irrigation activities for 6 days.  Do not re-enter for hand-weeding for 12 hours.

Malathion 85E

(malathion)

Group 1B
1220 mLha 
(495 mL/acre)

Apply in 1000 L/ha (405 L/acre) of water 
 1
  • Do not make more than 1 application per year.
  • Best control is obtained when the temperature is 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 12 hours.

Mako (Ripcord)

(cypermethrin)
86 mL/ha
(35 mL/acre)
 1
  • Apply to spears or ferns.
  • Very toxic to bees. Avoid spraying when bees are foraging.
  • Group 3 insecticide.

Up-Cyde 2.5 EC

(cypermethrin)
140 mL//ha
(60 mL/acre)

Decis 5 EC

(deltamethrin)

Group 3
200 mL/ha
(80 mL/acre)

Apply in 200 to 500 L/ha (80 to 200 L/acre) of water
 N/A
  • Apply after harvest period only, prior to egg laying.
  • Repeat as needed.
  • Repeat at 3 week intervals or as required.
  • Toxic to bees and beneficial insects.

Assail 70WP

(acetamiprid)

Group 4
 80 to 160 g/ha
(32 to 65 g/acre)

Apply in 190 L/ha (77 L/acre) of water.		 1
  • Repeat using a 10 day interval.
  • Maximum 2 applications per season.
  • Do not apply more than 320 g/ha (130 g/acre) per growing season.
  • Toxic to bees.
  • Do not re-enter treated area for 12 hours.

Delegate WG

(spinetoram)

Group 5
140 to 280 g/ha
(60 to 115 g/acre)
 60
  • Suppression only.
  • Apply to the ferns only.
  • Maximum of 3 applications per year.
  • Toxic to bees. Avoid spraying when bees are foraging.
  • Do not apply more often than once every 5 days.
  • Do not enter treated area for 12 hours.

Entrust 80 W

(spinosad)
88 g/ha
(36 g/acre)
 60
  • Apply post-harvest to the ferns.
  • Repeat at 7 to 10 day intervals.
  • Highly toxic to bees exposed to direct treatment, drift or residues.  Harmful to parasitoids and predatory mites.  Slightly harmful to foliage-dwelling predators.
  • Entrust 80 W and Entrust SC are approved for use in organics.
  • Group 5 insecticides.

Entrust SC

(spinosad)
294 mL/ha
(119 mL/acre)

Success 480 SC

(spinsosad)
145 mL/ha
(59 mL/acre)
  • Do not apply more than 3 times per year.
  • Do not enter treated area until residues have dried.
  • Group 5 insecticide.

Cutworms

Sevin XLR

(carbaryl)

Group 1A
2.5 to 6.4 L/ha
(1.0 to 2.6 L/acre)
 2
  • Use sufficient water to wet the soil around the base of each plant.
  • Use lower rate on young plants
  • Sprays should be applied on a warm evening.
  • Do not apply more often than once every 3 days.

Pounce EC

(permethrin)

Perm-Up EC

(permethrin)

Group 3
180 to 390 mL/ha
(75 to 160 mL/acre)
 2
  • Application should be made under warm, moist conditions in the evening.
  • Use the higher rate under dry soil conditions or where cutworms are large (2.5 to 4 cm long).
  • Do not disturb the soil surface for 5 days after treatment.
  • Use 180 mL/ha (75 mL/acre) for seedlings or transplant application.
  • A single application of 180 mL/ha (75 mL/acre) can be made during cutting season.
  • Very toxic to bees. Avoid spraying when bees are foraging.
*PHI = Pre-harvest interval.
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.


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