Download or read book Enhancing Biotic Mortality of the Potato Leafhopper Empoasca Fabae written by Laura Anne Weiser and published by . This book was released on 2001 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation quantified the population dynamics of E. fabae and developed a new management technique for this alfalfa pest. A two-year study monitored the number of E. fabae at 3 locations within alfalfa fields from mid-April to June and from adjacent tree/shrub species until July. Similar numbers of E. fabae were present on all tree and shrub species. There were more E. fabae at the edges of the fields closest to the trees than at 40 m into the field during the 1st week of May. In subsequent samples, there was no difference in the distribution of E. fabae in the alfalfa field. Based on this study, E. fabae are not using adjacent trees to build up population numbers to infest nearby alfalfa fields in early spring. The effects of a 3 m uncut strip at first harvest on the distribution of E. fabae and predatory species in alfalfa were examined from 1998 to 2000. Higher numbers of E. fabae were observed in the uncut strips than in the regrowth for 2-3 weeks after harvest in 2 of 3 years. The number of insect predators within the uncut strip was higher during the second week after harvest. This research provides alfalfa growers a potential cultural management technique for E. fabae while retaining beneficial insects. Predation rates of E. fabae by four predatory species were examined in a greenhouse study. Adult Coleomegilla maculata and Orius insidiosus consumed more E. fabae nymphs than adults. In contrast, similar numbers of adult and nymphal E. fabae were consumed by Nabis roseipennis and Chrysoperla carnea. Adults and nymphs of E. fabae and adults of predatory species were sampled in Iowa alfalfa fields from June-September in 1999 and 2000. Partial life tables were constructed for E. fabae nymphs. For the 1st growing period, E. fabae nymphal mortality was 70% and 49% in 1999 and 2000, respectively. During the last growing period, total nymphal mortality was relatively low (

Download or read book Implications of Diet for Survival and Behavior of Potato Leafhopper Empoasca Fabae in Alfalfa based Agroecosystems written by Cody Nagy and published by . This book was released on 2013 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bionomics and Control of the Potato Leafhopper Empoasca Mali Le Baron written by F. A. Fenton and published by . This book was released on 1923 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Dynamics of the Potato Leafhopper Empoasca Fabae on Water stressed Alfalfa written by George Davis Hoffman and published by . This book was released on 1989 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Survival and Behavioral Responses of the Potato Leafhopper Empoasca Fabae Harris on Synthetic Media written by Douglas Lee Dahlman and published by . This book was released on 1963 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Host Plant Relationships and Environmental Factors Influencing the Potato Leafhopper Empoasca Fabae Harris on Solanum Tourn L Species written by Gerrit Van de Klashorst and published by . This book was released on 1977 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecological Engineering for Pest Management written by Geoff M Gurr and published by CSIRO PUBLISHING. This book was released on 2004-08-03 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecological engineering is about manipulating farm habitats, making them less favourable for pests and more attractive to beneficial insects. Though they have received far less research attention and funding, ecological approaches may be safer and more sustainable than their controversial cousin, genetic engineering. This book brings together contributions from international workers leading the fast moving field of habitat manipulation, reviewing the field and paving the way towards the development and application of new pest management approaches. Chapters explore the frontiers of ecological engineering methods including molecular approaches, high tech marking and remote sensing. They also review the theoretical aspects of this field and how ecological engineering may interact with genetic engineering. The technologies presented offer opportunities to reduce crop losses to insects while reducing the use of pesticides and providing potentially valuable habitat for wildlife conservation. With contributions from the USA, UK, Germany, Switzerland, Australia, New Zealand, Kenya and Israel, this book provides comprehensive coverage of international progress towards sustainable pest management.

Download or read book Studies on the Potato Leafhopper Empoasca Fabae as a Nursery Pest written by Mario Moretti and published by . This book was released on 1956 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Influences on Changes of Populations of the Potato Leafhopper Empoasca Fabae in Relation to Alfafa written by Z. B. Noon Junior and published by . This book was released on 1962 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2002 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of a Symposium written by Edward J. Armbrust and published by . This book was released on 1989 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book American Doctoral Dissertations written by and published by . This book was released on 2001 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Commencement written by Iowa State University and published by . This book was released on 2001 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Women in plant development and evodevo 2022 written by Jana Krajnakova and published by Frontiers Media SA. This book was released on 2023-04-04 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agrindex written by and published by . This book was released on 1995 with total page 1390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Insects and Plant Defence Dynamics written by T. N. Ananthakrishnan and published by . This book was released on 2001 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book attempts to unfold an integrated approach to diverse aspects of plant defence systems against insects, very vital for a better understanding of the modus operandi involved in sustained productivity in agricultural systems."--BOOK JACKET.

Download or read book Biotechnology Research Abstracts written by and published by . This book was released on 1988 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monthly. Classified listing of references to worldwide articles dealing with all aspects of biotechnology. Also includes books and conferences. Each entry gives bibliographic information, institutional address of author(s), and abstract. Author and subject index.