What Are The Crop Protection Products To Pay Attention To This Season?

For pulse crop production in Western Canada, products that may pose market risks include diquat (Reglone®), glyphosate (Roundup®), saflufenacil (Heat®), glufosinate (MPower® Good Harvest®), flumioxazin (Valtera™), carfentrazone (Aim®, CleanStart®), benzovindiflupyr (Solatenol®, Elatus™), and chlorpyrifos (Lorsban™ and other trade names).

What Are The Risks Of Using These Products?

Late-season applications of fungicides, insecticides, or desiccants may result in residue levels found in the seed. Growers must take appropriate risk mitigation steps to ensure product residue remains below maximum residue limits (MRLs) set by regulatory agencies.

Pre-harvest application of glyphosate is of interest for two reasons:

  1. Glyphosate use in general and specifically pre-harvest use is under increased scrutiny by segments of the general public.
  2. Applying glyphosate when seed moisture content is 30% or above can result in residue levels greater than the maximum allowable limit.

What Developments Have There Been On These Issues Since Last Year?

The Canadian pulse industry is working hard to eliminate market access risks. For the crop protection products referenced in this document, growers are advised to be aware of international regulations in order to make the best crop management decisions.

Market Considerations For Use Of Pulse Crop Protection Products - October 2018 Update

A. Desiccant/Harvest Management Tools

Glyphosate* (e.g. Roundup)

Peas Lentils Chickpeas Dry Beans Faba Beans
OK OK WARN WARN WARN

Consult with your exporter/processor before using this product for certain crops/destinations. MRLs are established in key markets, however MRLs are set at low levels for dry beans in the EU, and all pulse crops in South Korea except for lentils.

Diquat (e.g. Reglone)

Peas Lentils Chickpeas Dry Beans Faba Beans
WARN WARN WARN WARN WARN

Consult with your exporter/processor on pulse crops destined for the US. MRLs are established in key markets but are set at low levels in the US.

Saflufenacil (e.g. Heat)

Peas Lentils Chickpeas Dry Beans Faba Beans
OK OK** OK OK OK

MRLs have been established for all major export markets. This product is not registered for pre-harvest use on green lentils.

Glufosinate (e.g. MPower Good Harvest)

Peas Lentils Chickpeas Dry Beans Faba Beans
NOT REGISTERED WARN NOT REGISTERED NOT REGISTERED NOT REGISTERED

Consult with your exporter/processor before using this product. MRLs are established in the EU and Japan, but not in the US or at CODEX.

Carfentrazone (e.g. Cleanstart, Aim)

Peas Lentils Chickpeas Dry Beans Faba Beans
WARN NOT REGISTERED WARN WARN WARN

Consult with your exporter/processor before using this product. MRLs are established in the EU, US and Japan, but not at CODEX.

Flumioxazin (e.g. Valtera)

Peas Lentils Chickpeas Dry Beans Faba Beans
WARN WARN WARN WARN WARN

Consult with your exporter/processor before using this product for certain crops/destinations. MRLs are established in key markets, however MRLs are set at low levels in the EU.

B. Other Crop Protection Products

Chlorpyrifos Insecticide (e.g. Lorsban, other trade names)

Peas Lentils Chickpeas Dry Beans Faba Beans
NOT REGISTERED WARN NOT REGISTERED NOT REGISTERED NOT REGISTERED

If applied according to label rates early in the crop year at vegetative stage or during flowering, there is no need for caution. In cases of later-season application during pod development or seed fill to maturity (e.g. for late-season grasshopper control), consult with your exporter/processor.

Benzovindiflupyr Fungicide (e.g. Elatus, Solatenol)

Peas Lentils Chickpeas Dry Beans Faba Beans
OK No Marketing issues No Marketing issues OK No Marketing issues

For beans and peas, MRLs have been established for all major export markets. For chickpeas, lentils, and faba beans, CODEX MRLs have not been established. If applied according to label rates and only early in the crop year (e.g. single application at 0-20% flowering,) there are no export marketing issues. For chickpeas, lentils, and faba beans, do not apply later than the 20% flowering stage.

Crop Protection Products Peas Lentils Chickpeas Dry Beans Faba Beans
A. Desiccant/Harvest Management Tools
Glyphosate*
(e.g. Roundup)
OK OK WARN WARN WARN
Consult with your exporter/processor before using this product for certain crops/destinations. MRLs are established in key markets, however MRLs are set at low levels for dry beans in the EU, and all pulse crops in South Korea except for lentils.
Diquat
(e.g. Reglone)
WARN WARN WARN WARN WARN
Consult with your exporter/processor on pulse crops destined for the US. MRLs are established in key markets but are set at low levels in the US.
Saflufenacil
(e.g. Heat)
OK OK OK OK NOT REGISTERED
MRLs have been established for all major export markets. This product is not registered for pre-harvest use on green lentils.
Glufosinate
(e.g. MPower Good Harvest)
NOT REGISTERED WARN NOT REGISTERED NOT REGISTERED NOT REGISTERED
Consult with your exporter/processor before using this product. MRLs are established in the EU and Japan, but not in the US or at CODEX.
Carfentrazone
(e.g. Cleanstart, Aim)
WARN NOT REGISTERED WARN WARN WARN
Consult with your exporter/processor before using this product. MRLs are established in the EU, US and Japan, but not at CODEX.
Flumioxazin
(e.g. Valtera)
WARN WARN WARN WARN WARN
Consult with your exporter/processor before using this product for certain crops/destinations. MRLs are established in key markets, however MRLs are set at low levels in the EU.
B. Other Crop Protection Products
Chlorpyrifos Insecticide
(e.g. Lorsban, other trade names)
NOT REGISTERED WARN NOT REGISTERED NOT REGISTERED NOT REGISTERED
If applied according to label rates early in the crop year at vegetative stage or during flowering, there is no need for caution. In cases of later-season application during pod development or seed fill to maturity (e.g. for late-season grasshopper control), consult with your exporter/processor.
Benzovindiflupyr Fungicide
(e.g. Elatus, Solatenol)
OK No Marketing issues No Marketing issues OK No Marketing issues
For beans and peas, MRLs have been established for all major export markets. For chickpeas, lentils, and faba beans, CODEX MRLs have not been established. If applied according to label rates and only early in the crop year (e.g. single application at 0-20% flowering,) there are no export marketing issues. For chickpeas, lentils, and faba beans, do not apply later than the 20% flowering stage.
OK No marketing issues.
WARN Know your market. There is at least one market where MRLs are not established. Consult with your exporter/processor.
WARN No marketing issues association with early application. If late application during pod development or seed fill to maturity (e.g. for late season grasshopper control), consult with your exporter/processor.
STOP Do not use after 20% flowering.
NOT REGISTERED Not registered. Only use registered product.

* Pre-harvest application of glyphosate is of interest for two reasons: 1. Glyphosate use in general and specifically pre-harvest use is under increased scrutiny by segments of the general public concerned with several components of modern agricultural systems. 2. Unlike many products applied in fall, applying glyphosate when seed moisture content is 30% or above can result in residues greater than the maximum allowable limit.

** This product is not registered for pre-harvest use on green lentils.