Rodent Pests of the Farm
David Ernest Lantz
1918년 1월 · U.S. Government Printing Office
eBook
23
페이지
report검증되지 않은 평점과 리뷰입니다. 자세히 알아보기
eBook 정보
"The annual losses from rodent pests in the United States have been estimated as fully $300,000,000. About two-thirds of the damage is inflicted by house rats and mice (both introduced from the Old World) and the remainder by native species. This enormous waste of resources may be greatly reduced and largely prevented through systematic and organized campaigns against the noxious species. The bounty system effects no permanent relief from rodents and is far more costly than the use of poisons. The Bureau of Biological survey has developed and perfected practical methods of extermination which have been successfully applied over wide territory. The Bureau cooperates with the public in organizing and carrying out systematic campaigns against animal pests and invites correspondence on the subject. Protection of their natural enemies is urged as an important aid in controlling rodent pests." -- p. [2]
이 eBook 평가
의견을 알려주세요.
읽기 정보
스마트폰 및 태블릿
노트북 및 컴퓨터
컴퓨터의 웹브라우저를 사용하여 Google Play에서 구매한 오디오북을 들을 수 있습니다.
eReader 및 기타 기기
Kobo eReader 등의 eBook 리더기에서 읽으려면 파일을 다운로드하여 기기로 전송해야 합니다. 지원되는 eBook 리더기로 파일을 전송하려면 고객센터에서 자세한 안내를 따르세요.
