Dynamics And Management Of Insecticide Resistance In The Horn Fly Haematobia Irritans Irritans L Diptera
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Dynamics And Management Of Insecticide Resistance In The Horn Fly Haematobia Irritans Irritans L Diptera
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Author : Antonio Thadeu Medeiros de Barros
language : en
Publisher:
Release Date : 1998
Dynamics And Management Of Insecticide Resistance In The Horn Fly Haematobia Irritans Irritans L Diptera written by Antonio Thadeu Medeiros de Barros and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
Studies on resistance of the horn fly, Haematobia irritans irritans (L.), to insecticides were conducted in Louisiana from 1989 to 1998. These studies included monitoring resistance and resistance dynamics under different strategies of insecticide use, monitoring the efficacy of insecticide products, establishing a relationship between bioassay findings and product efficacy, and evaluation of a new insecticide class. In four years (1989-1992), efficacy of 20% diazinon-impregnated ear tags used yearly was reduced from greater than twenty to just one week of control, and tag failure was observed with resistance ratios (RR) from 1.8 to 5.7. Diazinon resistance developed more slowly and to a lower magnitude than that reported for pyrethroids. A strong correlation was found between RR and the frequency of flies (RF) surviving a 1.72 ug/cm2 discriminating concentration of diazinon. A high risk of diazinon tag failure was associated with a 5% RF in pre-season bioassays. Resistance among several organophosphate (OP) insecticides including fenthion, ethion, pirimiphos-methyl, and tetrachlorvinphos was observed following the development of resistance to diazinon. Esterese activity was significantly higher in OP-resistant flies than in susceptible flies from both laboratory colony and field population. From 1991 to 1997, the yearly rotation of lambda-cyhalothrin + piperonyl butoxide and pirimiphos-methyl ear tags was evaluated for control of pyrethroid-resistant horn flies in two locations. Control efficacy was reduced to a maximum of two and seven weeds for the synergized pyrethroid and OP tags in their last year of use, respectively. The rotation did not improve pyrethroid efficacy or prevent further development of resistance to the pyrethroid or the OP. During 1996 and 1997, the efficacy of experimental chlorfenapyr ear tags for horn fly control was evaluated under field conditions at one location, and the susceptibility of flies to chlorfenapyr was measured at seven locations in 1997. Ear tags containing either 30 or 40% chlorfenapyr were effective for fly control, and the number of weeks with >90%fly reduction ranged from eight to eighteen. All field populations of horn flies, including those resistant to pyrethroids and OPs, were more susceptible to chlorfenapyr than were from a reference susceptible colony.
Insecticide Resistance In The Horn Fly Haematobia Irritans L In New Mexico
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Author : Buff Lea Crosby
language : en
Publisher:
Release Date : 1989
Insecticide Resistance In The Horn Fly Haematobia Irritans L In New Mexico written by Buff Lea Crosby and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Horn fly categories.
Insecticide Selection And The Development Of Resistance In The Horn Fly Haematobia Irritans L
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Author : Cindy McKenzie
language : en
Publisher:
Release Date : 1991
Insecticide Selection And The Development Of Resistance In The Horn Fly Haematobia Irritans L written by Cindy McKenzie and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Horn fly categories.
Horn Fly Haematobia Irritans L Resistance In Ontario To Pyrethroid And Organophosphorous Insecticides Impregnated In Cattle Ear Tags
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Author : Sarah Margaret Butler
language : en
Publisher:
Release Date : 1999
Horn Fly Haematobia Irritans L Resistance In Ontario To Pyrethroid And Organophosphorous Insecticides Impregnated In Cattle Ear Tags written by Sarah Margaret Butler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.
Insect Resistance Management
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Author : David W. Onstad
language : en
Publisher: Academic Press
Release Date : 2007-12-05
Insect Resistance Management written by David W. Onstad and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-12-05 with Technology & Engineering categories.
Insects, mites, and ticks have a long history of evolving resistance to pesticides, host-plant resistance, crop rotation, pathogens, and parasitoids. Insect resistance management (IRM) is the scientific approach to preventing or delaying pest evolution and its negative impacts on agriculture, public health, and veterinary issues. This book provides entomologists, pest management practitioners, developers of new technologies, and regulators with information about the many kinds of pest resistance including behavioral and phenological resistance. Abstract concepts and various case studies provide the reader with the biological and economic knowledge required to manage resistance. No other source has the breadth of coverage of this book: genomics to economics, transgenic insecticidal crops, insecticides, and other pest management tactics such as crop rotation. Dr. David W. Onstad and a team of experts illustrate how IRM becomes efficient, effective and socially acceptable when local, social and economic aspects of the system are considered. Historical lessons are highlighted with new perspectives emphasized, so that future research and management may be informed by past experience, but not constrained by it. * First book in 15 years to provide the history and explore aspects of a variety of stakeholders * Contributors include experts on ecological aspects of IRM, molecular and population genetics, economics, and IRM social issues * Biochemistry and molecular genetics of insecticides presented with an mphasis on past 15 years of research including Cry proteins in transgenic crops * Encourages scientists and stakeholders to implement and coordinate strategies based on local social conditions
Dissertation Abstracts International
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Author :
language : en
Publisher:
Release Date : 1999
Dissertation Abstracts International written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Dissertations, Academic categories.
Pesticides Documentation Bulletin
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Author :
language : en
Publisher:
Release Date : 1965
Pesticides Documentation Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Agricultural pests categories.
Agrindex
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Author :
language : en
Publisher:
Release Date : 1994
Agrindex written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Agriculture categories.
American Doctoral Dissertations
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Author :
language : en
Publisher:
Release Date : 1998
American Doctoral Dissertations written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Dissertation abstracts categories.
The Horn Fly And Its Control
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Author : Wesley Gordon Bruce
language : en
Publisher:
Release Date : 1940
The Horn Fly And Its Control written by Wesley Gordon Bruce and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1940 with Cattle categories.