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Grasshopper Forecast

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Shows how the grasshopper forecast survey is conducted by the Entomology Division of the Department of Agriculture, Winnipeg. By estimating the population in nymph, adult and egg stages along roadsides and margins of fields, accurate forecasts are made. These forecasts have proved so reliable that provincial governments, municipalities and farmers use them to plan control campaigns.

1960, 06 min 12 s

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