J.R. Simplot Company Post-Harvest Monitoring 1

Appendix 10

Post-Harvest Monitoring

INDEX

Section Page

Index 1

Introduction 2

Results and Discussion 3

Conclusion 5

Certification 6
J.R. Simplot Company Post-Harvest Monitoring 2

INTRODUCTION

All field trial sites are monitored for two growing seasons following the harvest in accordance with USDA 

regulations. The volunteer monitoring information for our 2009, 2010, and 2011 field trials are included 

in Tables 1, 2, and 3 (up to date as of 21 June, 2012). During the monitoring period, the Trial Manager 

inspected the trial sites in accordance with the Simplot Design Protocol for volunteers. Any volunteers 

found in the trial sites were devitalized by using disking, roguing, spraying herbicide or as per design 

protocol. 
J.R. Simplot Company Post-Harvest Monitoring 3

RESULTS and DISCUSSION

A summary of all post-harvest monitoring pertaining to the 2009, 2010, and 2011 growing seasons is 

included in Tables 1, 2, and 3.

Table 1. 2010 and 2011 Post-Harvest Monitoring Data for 2009 Field Trials

Site Locations / USDA# Monitoring Year 2010

FEB MAR APR MAY JUN JUL AUG SEP OCT

Canyon County, ID/

09-049-114n NA NA 0 0 0 0 0 0 0

Bingham County, ID/

09-049-114n NA NA 0 0 0 0 0 0 0

Montcalm County, MI/

08-353-104n NA NA 0 0 0 0 0 0 0

Cherry County, NE/

09-077-112n NA NA 0 0 0 0 0 0 0

Oneida County, WI/

09-049-114n NA NA 0 0 0 0 0 0 0

St Johns County, FL/

08-353-103n 0 0 0 0 0 NA NA NA NA

Site Locations Monitoring Year 2011

FEB MAR APR MAY JUN JUL AUG SEP OCT

Canyon County, ID/

09-049-114n NA NA 0 0 0 0 0 0 0

Bingham County, ID/

09-049-114n NA NA 0 0 0 0 0 0 0

Montcalm County, MI/

08-353-104n NA NA 0 0 0 0 0 0 0

Cherry County, NE/

09-077-112n NA NA 0 0 0 0 0 0 0

Oneida County, WI/

09-049-114n NA NA 0 0 0 0 0 0 0

St Johns County, FL/

08-353-103n 0 0 0 0 0 NA NA NA NA
J.R. Simplot Company Post-Harvest Monitoring 4

Table 2. 2011 and 2012 Post-Harvest Monitoring Data for 2010 Field Trials

Site Locations/ USDA# Monitoring Year 2011

FEB MAR APR MAY JUN JUL AUG SEP OCT

Bingham County, ID /

10-053-132n NA NA 0 0 0 0 0 0 0

Canyon County, ID /

10-053-132n NA NA 0 0 + + + 0 0

St Johns County, FL

09-336-103n 0 0 0 0 0 0 0 0 0

Missaukee County, MI

10-053-132n NA NA 0 0 0 0 0 0 0

Montcalm County, MI

10-053-132n NA NA 0 0 0 0 0 0 0

Cherry County, NE /

10-053-132n NA NA 0 0 0 0 0 0 0

Grand Forks County, ND

/ 10-053-132n NA NA 0 0 0 0 0 0 0

Adams County, WA /

10-053-132n NA NA 0 + + + 0 0 0

Adams County, WI /

10-053-132n NA NA 0 0 0 0 0 0 0

Oneida County, WI /

10-053-132n NA NA 0 0 0 0 0 0 0

Vilas County, WI1

10-076-103n NA NA 0 0 0 0 0 0 0

Site Locations Monitoring Year 2012

FEB MAR APR MAY JUN JUL AUG SEP OCT

Bingham County, ID /

10-053-132n NA NA 0 0 0 0 0 0 0

Canyon County, ID /

10-053-132n NA NA 0 15 6 1 2 0 0

St Johns County, FL /

09-336-103n 0 0 0 0 0 0 NA NA NA

Missaukee County, MI /

10-053-132n NA NA 0 0 0 0 0 0 0

Montcalm County, MI /

10-053-132n NA NA 0 0 0 0 0 0 0

Cherry County, NE /

10-053-132n NA NA 0 0 0 0 0 0 0

Grand Forks County, ND

/ 10-053-132n NA NA 0 0 0 0 0 0 0

Adams County, WA / 

10-053-132n NA NA 0 0 4 + 0 0 0

Adams County, WI / 

10-053-132n NA NA 0 0 0 0 0 0 0

Oneida County, WI /

10-053-132n NA NA 0 + + 0 45 0 0

Vilas County, WI1 /

10-076-103n NA NA 0 0 0 0 0 0 0
J.R. Simplot Company Post-Harvest Monitoring 5

Table 3. 2012 Post-Harvest Monitoring Data for 2011 Field Trials

Site Locations/ USDA# Monitoring Year 2012

FEB MAR APR MAY JUN JUL AUG SEP OCT

Bingham County, ID /

11-063-103n NA NA 0 0 0 0 0 0 0

Canyon County, ID /

11-063-103n NA NA 0 15 18 27 7 0 0

St Johns County, FL /

10-326-103n 0 0 0 0 0 0 0 0 0

Pulaski County, IN/

11-063-103n NA NA 0 20 TBD 0 0 0 0

Montcalm County, MI / 

11-063-103n NA NA 0 0 0 0 0 0 0

Ionia County, MI /

11-150-101n NA NA 0 0 0 0 0 0 0

Cherry County, NE /

11-063-103n NA NA 0 0 0 0 0 0 0

Grand Forks County, 

ND/ 11-063-103n NA NA 0 0 0 0 0 0 0

Adams County, WA / 

11-063-103n NA NA 0 0 0 0 0 0 0

Adams County, WI /

11-063-103n NA NA 0 0 0 0 0 0 0

Oneida County, WI/

11-063-103n NA NA 0 0 1 0 0 0 0

Oneida County, WI/

11-094-106n NA NA 0 0 0 0 0 0 0

+=Volunteers were found and destroyed

CONCLUSION

The data presented in Tables 1, 2, and 3, demonstrate that volunteer potato plants grown under the 

notifications were destroyed, in a similar fashion in fields that were planted and harvested the previous 

year. 

It can be concluded that, based on post-harvest monitoring observations and other agronomic data 

presented elsewhere, the events do not pose a plant pest risk, and do not possess any characteristics 

that would lead to increased weediness.