Effective July 11, 2021, Saskatchewan entered Step Three of the Re-Opening Roadmap and the public health order relative to COVID-19 was lifted. All restrictions related to the public health order were removed as of that date.

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Grasshopper Forecast Map

2021 Saskatchewan Grasshopper Forecast

The 2020 grasshopper forecast survey was completed on 1,170 sites throughout the province in August 2020. Relatively light populations were seen throughout the province with some exceptions. Heavy populations (15 m2) were detected near Birsay; populations greater than 10 m2 were detected near Birsay and Dinsmore. Moderate counts (5-10 m2) were found in the southwest (RM 141, RM 19, RM 169, RM 51), southeast (RM 7, RM 98, RM 37), west-central (RM 290, RM 351, RM 321, RM 256) and central (RM 225) regions. Highly localized heavy populations may not always be apparent on the map due to the smoothing function used to produce it.

Two-striped grasshoppers were indicated as dominant in many regions where species identification occurred. However, clearwing grasshopper numbers were very high in pasture (40 m2) in the RM of Laurier in the southeast in late-July. This population was also affecting nearby cereal crops. This grasshopper population and others in the province were experiencing an outbreak of the fungus, Entomophthora grylli, which was dramatically reducing grasshopper numbers by infecting and killing them.

The survey and forecast map are intended to provide general information on risk levels. The actual severity of grasshopper infestations may differ from the 2021 forecast map, depending on weather conditions in the spring. Hot and dry conditions favour growth and development of several grasshopper species.

Download the Grasshopper Forecast Map

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