Download or read book Montana Insect Pests 1941 and 1942 written by Hallow B. Mills and published by Forgotten Books. This book was released on 2018-03-19 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Montana Insect Pests, 1941 and 1942: Twenty-Ninth Report of the State Entomologist; December, 1942 The insect pests which plague the rancher and farmer in Mon tana present an ever-changing picture. This is true for at least two reasons. First, the pests of importance are likely to change from year to year, the dry years having their more or less typical com plex of injurious forms, and the wet years reducing some of them and making conditions favorable for a new group; further, new pests are appearing in the State bringing with them new problems. Second, in the light of new research findings better control meth ods are being developed, both in Montana and outside of the State, which necessitate the constant inspection and revision of the ap proved methods of control. The control of grasshoppers and Mor mon crickets is a good example of this. The last decade has seen many advances in our methods of attacking these problems. Sur vey methods have been developed and refined, bait formulae have been improved and reduced in cost, and the mechanics of mixing and spreading baits have taken great strides forward, largely through the efforts of the United States Bureau of Entomology and Plant Quarantine. The main efforts of this office have been directed toward the control of the major pests, either through the administration of field control campaigns, or through the preparation of circulars describing approved methods of insect control. More than 300 inquiries on the control of a great variety of harmful animals are received and answered annually. During the past year 44 single-page pamphlets, many of them illustrated, were prepared by this office and published by the Montana Extension Service. These circulars, Series A, Nos. 1 to 44, are available from County Agents or from the Montana Ex tension Service, -bozeman, Montana. Over a period of years the involved states in cooperation with the Bureau of Entomology and Plant Quarantine have developed a good organization for the large-scale control of regional insects of migratory habits. Control operations in Montana, under the joint direction of the State Entomologist's Office and this Bureau. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Montana Insect Pests 1941 and 1942 Twenty Ninth Report of the State Entomologist written by Montana Agricultural Experiment Station and published by . This book was released on 1942 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Montana Insect Pests 1941 and 1942 written by Harlow Burgess Mills and published by . This book was released on 1942 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Bulletins of the Agricultural Experiment Stations for the Calendar Years 1941 and 1942 written by and published by . This book was released on 1944 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Montana Insects Pests 1947 and 1948 Thirty Second Report of the State Entomologist Classic Reprint written by Montana State Entomologist and published by Forgotten Books. This book was released on 2018-04-27 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Montana Insects Pests, 1947 and 1948: Thirty-Second Report of the State Entomologist The entomological outlook for Montana presents a number of ramifications which have not been previously stressed. Our insect problems have increased in the last decade and the possibility of further. Serious situations arising is almost certain. During the last few years, we have had infestations of a number of insects new to the state. Likewise, some native insects that have not previously been pests have caused considerable damage to agricultural crops. It had been predicted by earlier workers that two of these new insects, the alfalfa weevil and the differential grasshopper, could not become established in Montana because of our ecological conditions. At the present time both of these insects have become serious pests. The differential grasshopper was first found in Dawson County in 1932. Since that time it has spread over much of the eastern and southern parts of Montana and is now found in economically important numbers as far west as Yellow stone and Big Horn counties. The alfalfa weevil was first 'observed in 1938 and has been a serious pest to alfalfa in Southeastern Montana since 1945. It has spread every year and at the present time it is as far north and east as Terry and as far west as Reed Point. This pest has become so serious in some sections that it has threatened the alfalfa seed and feed growing industries. It was assumed by many of the early workers that climatic factors were primarily responsible for limiting the distribution of many of these pests. It is apparent from the above examples that the ability of an insect to adapt itself cannot be overlooked in predicting the limits of its geographic distribution. The wheat stem sawfly, which is a native insect of Montana, did not become important economically until 1941. Since that time this insect has become one of our most serious pests of spring and winter wheat, at present confining itself largely to the northern part of the state. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book List of Bulletins of the Agricultural Experiment Stations written by United States. Department of Agriculture. Library and published by . This book was released on 1927 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Technical Literature of Agricultural Motor Fuels written by Richard Wiebe and published by . This book was released on 1945 with total page 1250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Bulletins of the Agricultural Experiment Stations in the United States from Their Establishment to the End of written by and published by . This book was released on 1937 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index catalogue of Medical and Veterinary Zoology written by United States. Bureau of Animal Industry. Zoological Division and published by . This book was released on 1946 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index catalogue of Medical and Veterinary Zoology written by and published by . This book was released on 1965 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecological Studies on the Potato Psyllid as a Pest of Potatoes written by Robert L. Wallis and published by . This book was released on 1955 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Montana Insect Pests for 1927 and 1928 written by John Robert Parker and published by . This book was released on 1928 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by Montana. State Entomologist and published by . This book was released on 1904 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Montana Insect Pests for 1923 and 1924 Being the Twentieth Report of the State Entomologist of Montana written by Robert Allen Cooley and published by . This book was released on 1925 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliographical Bulletin written by and published by . This book was released on 1944 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index Catalogue of Medical and Veterinary Zoology Authors written by and published by . This book was released on 1948 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experiment Station Record written by United States. Office of Experiment Stations and published by . This book was released on 1943 with total page 1122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
