Published on 09/06/2022
“Following a recent change in manufacturing method for Preside herbicide in the 500g bottles, the bulk density of this product has changed,” says Richard Brenton-Rule, Corteva New Zealand sales manager.
“This means the graduated volumetric measuring cylinder previously supplied specifically for Preside herbicide 500 g will no longer be calibrated to the bulk density of this product.”
“Use of these measuring cylinders on new product manufactured from May 2022 will result in a significant underdose in application, which is highly likely to result in performance issues in the field.”
Accordingly, Brenton-Rule says, a newly calibrated measuring cylinder will be provided with the next batch of Preside 500 g, due to be released in time for spring. The new cylinder will measure up to 210 g of product.
“In the meantime, we ask that retail branches, contractors, and farmers:
1. Check store shelves and spray sheds for any existing Preside 500 g product and Dow AgroSciences or Corteva Agrisciences branded measuring cylinders (calibrated to 260 g).
2. Following sale and/or use of this product, these 260 g measuring cylinders should be discarded.
Preside 500g bottles containing the new density product will have a warning sticker on top of the lid indicating the new measuring devices should be sold and used with the product going forward.
There is no change to the weight of product or active ingredient provided in a 500 g bottle of Preside.
“This change is purely volumetric, so users will note the bottle is fuller than previously.”
For further guidance, please contact Corteva Agrisciences customer services on 0800803 939.