Download or read book Alternate hosts of Blepharipa pratensis Meigen written by Paul A. Godwin and published by . This book was released on 1977 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: A current tactic for biological control of the gypsy moth, Lymantria dispar Linnaeus, is to release its parasites in forests susceptible to gypsy moth damage before the gypsy moth arrives. The basic assumption in these anticipatory releases is that the parasites can find and utilize native insects as hosts in the interim. Blepharipa pratensis is being used in this way. The efficacy of such releases has not been demonstrated. The present state of our knowledge about the niche requirements of gypsy moth parasites in general, and B. pratensis in particular, does not permit an evaluation now. However, we do have sufficient information to determine the crucial point of whether B. pratensis can live and develop in particular native lepidopteran species that are potential hosts. We report here on the survival of B. pratensis in eight potential North American hosts.

Download or read book Alternate Hosts of Blepharipa Pratensis Meigen written by Paul A. Godwin and published by . This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Bulletin written by and published by . This book was released on 1981 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Sampling Device for Counting Insect Egg Clusters and Measuring Vertical Distribution of Vegetation written by C. Wayne Martin and published by . This book was released on 1977 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data from experimental sites in Breathitt County, Kentucky, and Raleigh County, West Virginia, showed that during a major rainstorm on 4 April 1977 streamflow from surface-mined watersheds peaked lower than that from adjacent or nearby unmined watersheds.

Download or read book The Gypsy Moth written by Charles C. Doane and published by . This book was released on 1981 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nutrient Properties of Five West Virginia Forest Soils written by L. R. Auchmoody and published by . This book was released on 1972 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book General Technical Report NE written by and published by . This book was released on 1980 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Forest Service Research Note NE written by and published by . This book was released on 1972 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Northeastern Forest Experiment Station Forest Service USDA written by Northeastern Forest Experiment Station (Radnor, Pa.) and published by . This book was released on 1979 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Service General Technical Report NE written by and published by . This book was released on 1979 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Service Research Note NE written by and published by . This book was released on 1977 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 1977 1978 Report written by Northeastern Forest Experiment Station (Radnor, Pa.) and published by . This book was released on 1979 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book FINSYS 2 written by Joseph E. Barnard and published by . This book was released on 1978 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1978 with total page 1228 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index

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Download or read book Quick Bibliography Series written by National Agricultural Library (U.S.). Reference Division and published by . This book was released on 1982 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1978 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt: