Pesticide Residues

AgriSolutions offers pesticide residue analyses in all crops, animal tissues, soil and water. We also analyse for residues of pesticides and antibiotics in bees, honey and bee’s wax.  These analytical services can be performed as a stand-alone service or as the analytical component within a GLP compliant study.


AgriSolutions is aware of the commercial importance of bringing a new product or label extension use to market on time and within budget.  To achieve successful delivery of this service AgriSolutions utilize only GLP experienced personnel for the field and analytical phases of OECD GLP compliant studies.  All study personnel are committed to providing timely and accurate data that will satisfy the requirements of the Australian Pesticides and Veterinary Medicines Authority (APVMA) and other international regulatory agencies.



A residue is what remains of a chemical at a particular time after it has been applied to a plant, soil, water or animals.  The residue can be the chemical itself or a breakdown product.  All registered agricultural or veterinary chemicals have a maximum residue limit (MRL) set for all types of raw food commodities and some processed items.  An MRL is the maximum concentration of a residue in a commodity resulting from the use of an agricultural or veterinary chemical.  MRL's are set by the APVMA as part of the registration process.  Many factors are considered when setting MRL's.  These include the frequency and timing of the chemical applications, how rapidly the chemical degrades, the acceptable dietary exposure to the chemical and effects of processing.  A major consideration is any difference in MRL's between Australia and our major trading partners.  A major aim of chemical companies is to develop new products that result in less residues in food commodities while still providing adequate control of the target pest.  Some of Australia's major trading partners set very low MRL's for food commodities they import.


Companies submitting data to the APVMA to support a registration or permit application must include data on whether, and to what level, residues occur in edible crops, fodder, animal tissues, milk and eggs.  Trials must be conducted using the formulation to be used in Australia and at the maximum rate.  It is usual to conduct a trial at higher than maximum rate.  Decline trials must also be conducted to show the reduction of residues over time.  The level of residues in the commodity being tested must comply with the MRL set for that use.