Show extermination of prairie dogs successful in arizona Ari the destruction ot of about 3 doe dogs and other rodent rodents in northern ardona in the th course of a recent poisoning campaign ba has it to IS estimated 11 the arafe pro alln ir ln ot at abe tk J WA br mor af than tans tons the ia survey of the united states department of ag which in cooperation with the slite agricultural exten blon service and directed the campaign against the prairie dogs points out that if this forage orage were valued at only 50 cento a on it its orth would be about 38 clearing the area cost less ahr ahrn n 4 cents an acre As am a result of the campaign cne wool ool brower rower was able to place more sheep on the range another corn com plemely exterminated the prairie dogs on 50 60 OGO acre acres at about 1 cent an acre many alfalfa growers on the prescott farms project have in creased their alfalfa yield more than a third in the same way |