Trade Considerations

Conserve Plus (when applied correctly and at the label rate) treats grain at 1 ppm (1 g spinosad / tonne of grain). There is a nil withholding period (WHP) for human and animal consumption, and importantly there are no meat residue bioaccumulation concerns for livestock fed with treated grain.

An Australian cereal grains maximum residue limit (MRL) has been set for spinosad at 1 ppm, which is the same as the amount applied to the grain. Other markets varying from 1 to 2 ppm depending on the country and commodity treated.

Due to the slow degradation of spinosad, in short to mid-term storage scenarios, the residue on the grain at out-turn will be at, or just below, the original level at treatment (i.e. at the Australian MRL) as indicated in the graph below (Corteva Agriscience™ internal trial).

Conserve Residues Conserve Residues
Conserve Residues Conserve Residues

To ensure that there is no risk to trade it is important to ensure that any grain protectant containing spinosad is only applied once over the life of the commodity.

MRLs for spinosad in cereal grains have been established in all key Australian cereal grain markets including, Australian domestic, EU, Japan, USA, Taiwan and all countries that accept Codex residue limits. 

Information on MRLs:

Stewardship Program

The purchase and use of Conserve Plus is governed by a stewardship program in addition to label Directions for Use. Together, the label and stewardship program are designed to minimise the risk of a double application of spinosad to prevent trade issues which may arise through MRL breaches.

The Conserve Plus Directions for Use:

  • Restrict use of Conserve Plus to treat grain that has been grown on the property where it will be stored. 
  • Direct that the product is applied no more than once to any consignment of grain.

For more information, download the Technical Manual