best practice management guide for south-eastern Australia - Grains ...

Grazing and fodder conservation
Canola hay needs a ready market to be a cost effective operation.
Photo: D. McCaffery, NSW DPI
period varies with the product and can even vary with the
timing of use of a single product. For example, atrazine has
a 15-week withholding period for grazing or cutting canola
where it is applied pre-emergence but only six weeks when
applied post-emergence, while simazine has a 15-week
withholding period used either pre or post-emergence.
Not all chemical labels list withholding periods for the grazing
of livestock on every crop listed as approved for treatment.
However, the label may have a section headed ‘Protection of
livestock’ under which other warnings can be issued.
If the hay or silage is either offered for sale or is
purchased, a signed commodity vendor declaration (CVD)
can be requested. An industry accepted CVD form can
be found on the Meat and Livestock Australia website
(www.mla.com.au). This form will then become part of the
vendor declaration required to on-sell the livestock.
A commodity vendor declaration form requires the
following information:
n the date the crop was cut for fodder;
n a list of chemicals used on the crop, rates and application
dates;
n the appropriate withholding and/or export interval for
cutting for fodder for all chemicals;
n chemicals applied to adjacent crops and neighbours
crops that may pose a spray drift risk; and
n the property’s chemical residue status classification.
70 Canola best practice management guide