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Description: Grasshoppers have been a recurring problem on the Canadian prairies for as long as cereal crops have been grown in the area. Current practice often is to treat infested areas with aqueous sprays of insecticides when the grasshopper infestations have reached levels where they can cause economic damage. With the toxicity of modern insecticides has come pressure to reduce the amount of chemical applied and to improve the selectivity of application, so that the chemical is delivered to the target insects without contaminating the crop or killing non-target species. In the 1920s, grasshoppers were con trolled by a poison bait consisting of sawdust, molasses, water and arsenic. The bait was broadcast from a truck or wagon with a scoop shovel or by a ground-driven spinning disk similar to those now used for spreading sand on the road in winter (Riegert 1980). This type of application was abandoned after the advent of 2,4-D for weed control, which made sprayers commonly available, and the introduction of newer insecticides. It was much easier to pour the insecticide into a tank, add water and spray the solution on the field than it was to mix and shovel out the wet, heavy bait.

Keywords: a bran bait spreader
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Citation: Ford, R.J. 1986. A BRAN BAIT SPREADER. Canadian Agricultural Engineering 28(1):19-22.
Volume: 28
Issue: 1
Pages 19 - 22
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Date: 1986
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Coverage: Canada
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