NOTES ON THE HABITS OF INJURIOUS GRASSHOPPERS IN MANITOBA

Norman Criddle

doi:10.4039/Ent6597-5

Extract

Any evidence which would help us to forecast grasshopper outbreaks, or to anticipate and check them before they become acute, is worth considering and on this account the recently annunciated “phase” theory, and the still later “reservation” theory, should secure the careful consideration of American entomologists.

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NOTES ON THE HABITS OF INJURIOUS GRASSHOPPERS IN MANITOBA

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