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BACKGROUND
The Chemicals Regulation Directorate, (CRD) have issued new labelling rules for all herbicides used on non-porous hard surfaces which all manufacturers must comply with by May 2012. Restrictions have been introduced to ensure pesticide run-off from non-porous hard surfaces to water course is minimal and can be predicted by the HARDSPEC model used in assessing pesticides for approval.
Adopting the new rules will minimise the use of pesticides as required under the Sustainable Use Directive and will also save money by reducing unnecessary herbicide use from overall spraying. They will reduce run-off to drains and water bodies as required by the Water Framework Directive. The rules implement Best Practice advised by Monsanto into a mandatory legal requirement.
• New label restrictions apply from May 2012 to ensure Best Practice is followed.
• New wording will appear in the ‘Directions for use’ section of the product label.
The rules apply only to spraying on non-porous hard surfaces.
There is little or no absorption, posing a high risk of run-off to the nearest drain after the first 2-3mm of rain.
Check labels carefully to see if they apply to your intended target before use
Natural surfaces not intended to bear vegetation, permeable surfaces overlying soil and railway ballast are not covered by the new rules.
NB. CRD defines railway ballast as a hard surface but in a separate category to all other hard surfaces because it is porous. Railway ballast is not covered by the new rules.
Glyphosate binds strongly to soil colloids and is classed as a non-leacher, so the risk of run-off is minimal from permeable surfaces and soil.
The new label wording will be included in the ‘Directions of use’ table on Roundup Pro Biactive, Roundup ProBiactive 450 and Monsanto Amenity Glyphosate labels printed from January 2012 onwards.
“Apply this product carefully. Ensure spraying takes place only when weeds are actively growing (normally March to October) and is confined only to visible weeds including those in the 30cm swath covering the kerb edge and road gulley – do not overspray drains.”
Spot treatment can be achieved using infra-red weed detection units, weed-wipers and by manual operation of ATV mounted units, knapsack, hand lance or CDA sprayers.
Diagram courtesy of CPA
To download a technical note with more details of please
clck here
