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Control of alfalfa weevil by spraying poison over fields
The United States Department of Agriculture describes an effective, tested method for alfalfa weevil control by spraying arsenical poisons over fields. Two pounds of lead arsenate per 100 gallons of water with soap ensures leaf adhesion, using a high pressure sprayer for even mist distribution. Application timing targets the turning point before first-cut readiness, with spring spraying reducing damage and aiding the second crop.
MENTIONED IN THIS ARTICLE
United States Department of Agriculture
Department