| Show soil treatment kills japanese beetle grubs that feed on roots of vegetation when japanese beetles the offspring of 0 those that slipped unobtrusively tru into the united states some time before 1918 1916 on nursery stock from the far east were first discovered in new jersey could suggest no effective way to stop their spread in their native home various parasites and predators keep these beetles from becoming a serious economic pest but those that migrated here brought no natural enemies with them consequently they multiplied rapidly now they infest contin continuously bously about square miles mostly in new jersey but running into new york pennsylvania delaware and maryland isolated colonies have sprung up elsewhere along the atlantic seaboard nothing can be done to stop the natural spread of the japanese beetle here each year it extends its territory a few miles on every front notes a writer in the detroit free press the only effective control measure tor for the japanese beetle treating infested soil with lead arsenate is too expensive tor for use over a large area in iii small isolated areas of infestation it is a cheap safeguard against a spreading infestation that would soon become very costly soil treatment kills the beetle grubs that just below the surface feed on the roots of grass and other vegetation unsightly brown spots in lawns and on golf courses in the east are evidence of this feeding adult beetles teed feed on about different plants they live mainly on oa foliage and the upper and outer parts of plants exposed to bright sunlight |
