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CBH Group
CBH Group

Paraquat use on lupins

24/9/2025

CBH has conducted several years of research into the use of paraquat pre-harvest in lupins (crop-topping) and has been monitoring paraquat residue levels in grain delivered. Europe is an important market for Western Australian lupins and has a Maximum Residue Limit (MRL) of 0.02 mg/kg for paraquat in lupin grain, which is 50 times lower than the Australian MRL of 1 mg/kg. In order to maintain access to this major market, along with others, it is important that we minimise paraquat residues in lupin grain.

Based on extensive residue testing of grain and investigation into results, CBH has found some practical measures that can be taken by growers to minimise paraquat residues in lupin grain. The below technical information sheet provides some information and advice to reduce paraquat residues in grain, to help maintain access to this important market for Western Australian growers.

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