Lorsban 15G


Lorsban™ 15G is an insecticidal row treatment for control of larval pests. It is non-systemic in plants, so the active ingredient is not taken up by the plant.

Ask an Agrologist


Dependable pre-emergent insect control. Lorsban 15G is an insecticidal row treatment for control of larval pests.


Non-systemic in plants, so the active ingredient is not taken up by the plant.


More than 3,600 studies and over $100 million have been spent examining the health and safety aspects of the active ingredient, chlorpyrifos.


Lorsban is one of the most widely used insecticides in the world. Chlorpyrifos has been in use for over 45 years.


Below lists the crops that Lorsban 15G insecticide can be used on.


Broccoli (Brassica oleracea var. italica)

Brussels Sprouts

Brussels Sprouts (Brassica oleracea var. gemmifera)


Cabbage (Brassica oleracea)


Cauliflower (Brassica oleracea var. botrytis)


Corn, Field, For Forage, or Fodder (Zea mays ssp. mays)

Corn, Field, For Seed (Zea mays ssp. mays)

Corn, Field, For Silage (Zea mays ssp. mays)

Corn, Field, or Silage, Seed Treatment (Zea mays ssp. mays)

Corn, Field (Zea mays ssp. mays)

Corn, For Seed (Zea mays ssp. mays)

Corn, Sweet (Zea mays ssp. mays)

Corn, Sweet (Zea mays)

Grain Corn


Onion (Allium spp.)


Rutabaga (Brassica napus var. napobrassica)

Provincial Registrations

Now registered in the following provinces:

  • Registered
  • Unregistered

Technical Specifications

  • Application Method
    Aerial: Not registered for aerial application.
    Lorsban 15G can be applied through properly calibrated ground application equipment as an in-furrow treatment. Follow the guidelines below to calibrate the application equipment:
    • Fill the hopper of the applicator with Lorsban 15G.
    • Attach a plastic bag to the tube openings to catch metered product from each row outlet.
    • Set the planter to the manufacturer’s initial settings for the desired application rate.
    • Measure off 100 metres and drive the planter the premeasured distance at the desired speed for application.
    • Measure product that was metered into the bags. Each bag should contain the weight of product as listed in the rate chart for a 100 m row. For example, if the target rate was 75 g/100 m row, the bags should all contain 75 grams of product. NOTE: Lorsban 15G granules have a density where 75 grams (weight) of product will be approximately 100 mL (volume).
    • If the application rate is over or under the desired rate, adjust the settings and repeat the calibration.
  • Approved Use
    Refer to the Lorsban 15G label for complete use instructions.
    Refer to the Controlled Pests list for the full list of pests.
  • Rates
    Dependent on pest. Use as indicated on product label.
  • Application Timing
    Dependent on pest. Use as indicated on product label.
  • Herbicide Group

    Group 1B(1)

  • Grazing

    •  Rutabaga – Do not apply within 30 days of harvest.

    •  Broccoli, Brussels sprouts, cabbage, cauliflower – Do not apply within 32 days of harvest.

    •  Field, seed and sweet corn – Do not apply within 70 days of harvest.

    •  Pickling onion – Do not apply within 97 days of harvest.

    •  Dry onion – Do not apply within 109 days of harvest

  • Tank Mixes

    •  No registered tank mixes.


Labels (PDF)
Lorsban 15G Insecticide Label
Insecticide Lorsban 15G étiquette principale

Safety Data Sheets (PDF)
Lorsban 15G Insecticide SDS
Insecticide Lorsban 15G fiche signalétique

Additional Resource Material (PDF)
Horticulture Crop Protection Guide
Guide de Protection des Cultures

Before use and for complete product information, please read and follow label directions.

Have a Question? We Are Here to Help!

Thank you for visiting Corteva.ca. Your comments and questions are important to us. Let us know how we can help you learn more about our products, our services or our web site. You can also call the Solutions Center for assistance at 1.800.667.3852.

Please note fields with * are required in the form.

Yes, I would like to receive agronomy advice, special offers, product information, news and updates through electronic communications from Corteva Agriscience™.