Do Not Use Glufosinate‑Ammonium on Pulse Crops 

Glufosinate‑ammonium is a non‑selective herbicide used in certain cropping systems. However, its use on pulse crops poses a significant export risk due to missing or extremely low maximum residue limits (MRLs) in many international markets. 

To protect market access for Canadian pulses, glufosinate‑ammonium must not be used on pulse crops. 

Why glufosinate must not be used on pulses 

There is an elevated risk of MRL‑related trade disruption if glufosinate is used on pulses. Many export markets either do not have established MRLs for glufosinate on pulses or have limits set at levels that are difficult to meet consistently. 

Key points growers need to know:  

• Glufosinate is registered in Western Canada only on lentils, and only for certain generic products 

• Even where registered, glufosinate should not be used on lentils 

• Use of glufosinate on any other pulse crop in Western Canada is off‑label and illegal 

To help maintain domestic and export market access: 

• Use acceptable pesticides only 

• Always read and follow the product label, including application rate, timing and pre‑harvest interval 

What’s at stake? 

The success of the Canadian pulse sector depends on reliable access to over 130 export markets worldwide. These markets often have pesticide residue requirements that differ from Canada’s MRLs. 

In recent years: 

• Export markets have increased their focus on pesticide residues 

• Residue testing has become more frequent and more sensitive 

• The consequences of non‑compliance have become more severe 

This means growers and the broader value chain must take extra precautions to ensure pulses meet the requirements of importing countries and avoid the risk of rejected shipments or broader trade disruption. 

How the industry is managing MRL risk 

Pulse Canada and industry partners are actively working to reduce the risk of MRL‑related trade disruption by: 

• Identifying and communicating potential MRL risks 

• Working to establish MRLs in export markets where possible 

• Advocating for greater MRL harmonization and regulatory cooperation globally 

At the same time, the industry recognizes the importance of maintaining access to effective crop protection tools. When the risk of trade disruption is too high, it is critical that growers do not use certain products to protect market access for all. 

Keeping pulses market‑ready 

Keep it Clean encourages growers to follow these best practices: 

• Use acceptable pesticides only 

• Always read and follow the label 

• Deliver what you declare 

These steps help protect individual farm operations and the reputation of Canadian pulses in global markets. 

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