Grasshopper and Mormon Cricket Outbreak Forecasts and Survey
Information
National Adult and Nymphal Survey Maps (U.S.)
Grasshopper Forecast (Hazard) Maps (U.S.)
Grasshopper Forecast Maps - Canada
State Survey Maps and Reports (U.S.)
Text Reports
Western U.S. Adult and Nymphal Grasshopper
and Mormon Cricket Survey Maps
Field surveys of grasshopper densities and mapping were done by
USDA-APHIS-PPQ Western Region.
1. 2008 Adult Grasshopper Survey Map
2. 2007 Adult Grasshopper Survey Map
(July 2007)
3. 2007 Adult Mormon Cricket Survey Map
(July 2007)
4. 2006 Adult Grasshopper Survey Map
(October 2006)
5. 2006 Adult Mormon Cricket Survey Map
(October 2006)
6. 2005 National Adult Grasshopper Survey Map
(August 26, 2005)
7. 2005 National Mormon Cricket Survey Map
(August 26, 2005)
8.
2005 Nymphal Grasshopper Survey Map
(June 24, 2005)
9. 2004 Adult Grasshopper Survey Map
(Oct 20, 2004)
10.
2004 Nymphal Grasshopper Survey Map (Oct 1, 2004)
11. 2004 Mormon Cricket Survey Map (Oct 1, 2004)
12. 2003
Grasshopper Adult Survey Map (Oct 14, 2003)
13. 2003
Grasshopper Nymphal Survey Map (Aug 8, 2003)
14. 2003
National Mormon Cricket Survey Map (Oct 14, 2003)
15. 2002 Adult
Grasshopper Survey Map (Oct 25, 2002)
16. 2002
Nymphal Grasshopper Survey Map (Oct 8, 2002)
17. 2002 Mormon Cricket Density (Oct 8, 2002)
* Please note: Dates on the maps indicate when the map, NOT the
survey sampling, was completed. For example, the Grasshopper Nymph
Map is an early-season survey, whereas the Adult Map is a
late-season survey.
U.S. Grasshopper Forecast Maps (Hazard Maps)
A collection of regional grasshopper forecast or hazard maps
for the western United States compiled by USDA-APHIS starting in
1994. The maps summarize the previous year's grasshopper
densities to show the anticipated risk, or hazard, of grasshopper
problems throughout the western U.S for the year specified. The
number of eggs laid by grasshoppers during the summer and weather
conditions in the winter and spring can have large impacts on
grasshopper densities, but are not reflected in the forecast maps.
Hazard maps:
2009,
2008, 2007,
2006, 2005,
2004, 2003,
2002, 2001,
2000,
1999,
1998,
1997,
1996,
1995,
1994
Canadian Grasshopper Forecast Maps
1. 2009 Grasshopper Forecast Map for
Alberta, Canada
2. 2009 Grasshopper Forecast Map for Saskatchewan, Canada
3. 2009 Grasshopper Forecast Map for Manitoba, Canada
4. 2008
Grasshopper Forecast Map for Alberta, Canada
5. 2008
Grasshopper Forecast Map for Saskatchewan, Canada
6. 2008
Grasshopper Forecast Map for Manitoba, Canada
7. 2007
Grasshopper Forecast Map for Alberta, Canada
8. 2007
Grasshopper Forecast Map for Saskatchewan, Canada
9. 2007
Grasshopper Forecast Map for Manitoba, Canada
10. 2006
Grasshopper Forecast Map for Alberta, Canada
11. 2006
Grasshopper Forecast Map for Saskatchewan, Canada
12. 2006
Grasshopper Forecast Map for Manitoba, Canada
13. 2005
Grasshopper Forecast Map for Alberta, Canada
14. 2005
Grasshopper Forecast map for Saskatchewan, Canada
15. 2005
Grasshopper Forecast Map for Manitoba, Canada
16. 2004
Grasshopper Forecast Map for Alberta, Canada
17. 2004
Grasshopper Forecast Map for Saskatchewan, Canada
18. 2004
Grasshopper Forecast Map for Manitoba, Canada
19.
2003
Grasshopper Forecast Map for Alberta, Canada (Jan 8, 2003)
Provided courtesy of Dr. Dan Johnson,
Agriculture and Agri-Food Canada, Lethbridge, Alberta.
20. Grasshopper forecast for June, 2003 for Alberta, Saskatchewan and
Manitoba (June 2003)
Provided courtesy of Dr. Dan Johnson,
Agriculture and Agri-Food Canada, Lethbridge, Alberta.
State Survey Maps and Reports
1.
Montana 2008 Adult Rangeland Grasshopper Survey
2.
North Dakota cropland and rangeland grasshopper field surveys
3.
Nebraska grasshopper survey maps and reports
4.
Idaho rangeland grasshopper and Mormon cricket suppression program
and survey results
5. 2002 Montana
Adult Grasshopper Survey Map (Oct 25, 2002)
Text Reports
1.
2002
Western Region Statistics Report - Grasshoppers and Mormon
Crickets (PDF - 81K)
Provided courtesy of William C. Kauffman,
Regional Program Manager, USDA-APHIS-PPQ Western Regional
Office, Fort Collins, Colorado.
2.
2003
Grasshopper Forecast for Alberta and Adjoining Regions of
Saskatchewan
Provided courtesy of Dr. Dan Johnson,
Agriculture and Agri-Food Canada, Lethbridge, Alberta.
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