Fake pesticides risk within the food supply chain

Research conducted by Harper Adams University has identified that the worldwide market for fake crop protection products is estimated to be worth £3.63bn per annum.
In some markets in the EU it is thought that 25% of the pesticides sold originate from the black market and are either substandard or counterfeit versions.
This poses yet another challenge within supply chain risk management and supply chain auditing.
Businesses who are using food specifications to manage maximum residue limits (MRL’s) within their supplier management and supply chain compliance programs will be exposed.
If the farmer has used a fake product inadvertently and completed all paperwork correctly how would the auditor pick it up.