Download or read book Detection of Pear Psylla written by Everett C. Burts and published by . This book was released on 1969 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pear Psylla Detection and Control written by Arthur H. Retan and published by . This book was released on 1984 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Analysis of Pear Psylla Populations 1977 79 written by Robert Eaton Fye and published by . This book was released on 1981 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Bibliography of Psylla Homoptera Psyllidae on Pear Trees written by and published by . This book was released on 1981 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Bibliography of Psylla Homoptera Psyllidae on Pear Trees written by G. J. Fields and published by . This book was released on 1981 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Pear Psylla and the New York Plum Scale written by Mark Vernon Slingerland and published by . This book was released on 1896 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Host Resistance to the Pear Psylla in New York written by Marvin K. Harris and published by . This book was released on 1972 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Susceptibility to Dust and Spray Mixtures of the Pear Psylla Psylla Pyricola F rster written by Frederick Zeller Hartzell and published by . This book was released on 1925 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pear Psylla Control Studies written by Edward Hadley Glass and published by . This book was released on 1969 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Susceptibility to Spraying Mixtures of Hibernating Pear Psylla Adults and Their Eggs written by Harold Edward Hodgkiss and published by . This book was released on 1914 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigations on the Control of Pear Psylla written by Frederick George Mundinger and published by . This book was released on 1925 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 1st International Symposium on Biological Control of Arthropods written by and published by . This book was released on 2003 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Rainfall Simulator Workshop written by and published by . This book was released on 1979 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Selective Bibliography on Insects Causing Wood Defects in Living Eastern Hardwood Trees written by C. John Hay and published by . This book was released on 1981 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Analysis of Pear Psylla Populations 1977 79 Classic Reprint written by Robert Eaton Fye and published by Forgotten Books. This book was released on 2018-03-18 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from An Analysis of Pear Psylla Populations, 1977-79 In 1978, the control programs of grower 4 showed the effectiveness of strong early season control of pear psylla (fig. However, in late July an application of amitraz was required. In the absence of additional applications, the survivors initiated large late - season populations. Predator pressures in late season were low due to the lack of a major reservoir (in an adjacent un sprayed area) to furnish the initiating populations. In 1979, the early p0pula tions of immatures were reduced by insecticide applications (fig. But the survivors of the summer insecticide applications initiated a large potential population of overwintering adults in late fall. The predators were decimated by the insecticide applications and never recovered. The data demonstrate the rapid recovery of pear psylla populations when small numbers survive insecticide applications. The necessity for miticide applications indicated some weakness in the early season control or a reservoir of mites for reinfestation of the trees. 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 Bibliographies and Literature of Agriculture written by and published by . This book was released on 1981 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agricultural Reviews and Manuals written by and published by . This book was released on 1978 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
