of an on-farm risk assessment system for pesticide use
based approach was originally taken to the assessment of pesticide use
in the EMA software. However, it was recognised that although correct
information was being given to the farmer, a risk based approach would
be beneficial and more site specific. The new module directly replaced
the old one; but in addition, a new package (p-EMA) was developed,
isolating the extensive pesticide information within EMA to produce a
stand-alone system specifically for agricultural pesticide use.
elements of the project being:
the system needed to consider comparability with best practice,
regulatory compliance and an eco-toxicology risk assessment for a range
of organisms. These included honeybees, earthworms, birds, mammals, and
aquatic organisms. An indicator for leachability was also identified
for use. For this particular project, operator exposure risk was
omitted, and as a result assessing the risk of pesticide residue levels
was also be omitted.
methodology developed was based on regulatory risk assessment methods
and these were adapted to make them responsive to the local site and
farming practices as far as current scientific understanding allows.
previous format, style and user-friendliness of the EMA software was
approach embraced the philosophy of Integrated Pest Management.
system was based on only easily available farm data - any other data
can be accessed from a database provided with EMA.
project was carried out in collaboration with SSLRC and the Central
Science Laboratory, and supported by Defra.
Prof. Kathy Lewis