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Phenology Of The Colorado Potato Beetle Leptinotarsa Decemlineata Population On Long Island
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Book Synopsis Phenology of the Colorado Potato Beetle (Leptinotarsa Decemlineata) Population on Long Island by : David Matthew Lansky
Download or read book Phenology of the Colorado Potato Beetle (Leptinotarsa Decemlineata) Population on Long Island written by David Matthew Lansky and published by . This book was released on 1984 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A.E. Res written by and published by . This book was released on 1986 with total page 1426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Movement and Spatial Costs of Resistance in the Colorado Potato Beetle, Leptinotarsa Decemlineata (say), Coleoptera: Chrysomelidae by : Kathleen Schnaars Uvino
Download or read book Movement and Spatial Costs of Resistance in the Colorado Potato Beetle, Leptinotarsa Decemlineata (say), Coleoptera: Chrysomelidae written by Kathleen Schnaars Uvino and published by . This book was released on 2013 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Colorado potato beetle, Leptinotarsa decemlineata is infamous for its' ability to develop resistance to insecticides and remains the most important insect defoliator of potatoes today. Long Island populations of the Colorado potato beetle have been at the forefront of developing resistance to every newly developed insecticide. Managing the evolution of resistance requires cultural as well as chemical means. Cultural efforts include field rotation, crop rotation, chemical rotation as well as refugia. Movement plays an integral part of both, the cultural schemes intended to thwart resistance evolution and the life history traits of the Colorado potato beetle. The use of refuges and crop rotation are often promoted to supplement the use of chemical pesticides in an effort to control crop pests. Refuges are untreated areas adjacent to treated crops, where susceptible genes can survive. The efficacy of refuges depends on movement between treated and untreated areas. Differences in movement between resistant and susceptible beetles can play a big role in the success of the refuge or rotation plan. Crop rotation can reduce the amount of insecticide used through dosage levels or frequency of application and slows insects' resistance evolution. Resistance to insecticides often has fitness costs associated with that resistance. I hypothesized that resistance to the insecticide Imidacloprid is correlated with reduced movement capability in Colorado potato beetles, Leptinotarsa decemlineata (Say) (henceforth potato beetles), the primary insect defoliator of potato plants. I examined whether migratory ability or flight propensity have a cost of resistance to imidacloprid in Colorado potato beetles, Leptinotarsa decemlineata (Say) by examining LD50's of flying emergers and walking emergers in the spring. Imidacloprid is the most widely used and in some cases the only effective insecticide for Colorado potato beetle control and there is currently a wide range of variation in resistance. In the spring overwintering potato beetle adults halt diapause and emerge from overwintering sites. For the purposes of this work I will use the definition of diapause presented by Tauber et al (1986): "a neurohormonally mediated, dynamic state of minimal activity that occurs during a genetically determined stage(s) of metamorphosis, usually in response to environmental stimuli that precede unfavorable conditions." Diapause in the Colorado potato beetle begins before the harsh conditions set in (loss of host and cold temperatures). It is an important strategy employed by many temperate zone insects for overwintering. Upon emergence from the overwintering site they emigrate to colonize local and distant fields. Emergence from diapause therefore offers an opportunity to sample genetically diverse groups of beetles. My results indicate that emerging flyers have a higher level of resistance than emerging walkers from overwintering sites. I also examined populations that were under intense selection pressure from one chemical, Spinosad, and largely isolated from other fields or populations. Spinosad is produced by a soil dwelling bacterium called Saccharopolyspora spinosa and it kills by ingestion. Spinosad is currently the only approved chemical available to Organic farmers on Long Island. These results indicate complete failure of Spinosad on that population but less resistance on distant populations and less resistance on populations from conventionally managed fields, all in Suffolk County, Long Island. Additionally early spring colonists of rotated and `non-rotated' fields were evaluated for resistance levels for 3 years. For two of the three years, colonists on long distance rotated fields had high LD50. Assuming long distance colonization is more likely dependent on flight, this is consistent with my results that emerging flyers have a higher LD50 than emerging walkers.
Book Synopsis Resistance and Metabolism of Imidacloprid in Colorado Potato Beetle, Leptinotarsa Decemlineata Say (Coleoptera:Chrysomelidae) by : David Mota-Sanchez
Download or read book Resistance and Metabolism of Imidacloprid in Colorado Potato Beetle, Leptinotarsa Decemlineata Say (Coleoptera:Chrysomelidae) written by David Mota-Sanchez and published by . This book was released on 2002 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the XVIII International Congress of Entomology by :
Download or read book Proceedings of the XVIII International Congress of Entomology written by and published by . This book was released on 1988 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Colorado Potato Beetle (Leptinotarsa Decemlineata Say) by : Frank Hurlbut Chittenden
Download or read book The Colorado Potato Beetle (Leptinotarsa Decemlineata Say) written by Frank Hurlbut Chittenden and published by . This book was released on 1907 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Impact of Perillus bioculatus on the Colorado potato beetle and plant damage by :
Download or read book Impact of Perillus bioculatus on the Colorado potato beetle and plant damage written by and published by . This book was released on 1978 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abstracts written by and published by . This book was released on 1988 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ecology of the Colorado Potato Beetle, Leptinotarsa Decemlineata (say), on Horsenettle, Solanum Carolinense L., in Michigan by : Jaime Mena-Covarrubias
Download or read book Ecology of the Colorado Potato Beetle, Leptinotarsa Decemlineata (say), on Horsenettle, Solanum Carolinense L., in Michigan written by Jaime Mena-Covarrubias and published by . This book was released on 1989 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Entomology Abstracts written by and published by . This book was released on 2000 with total page 938 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the Symposium on the Colorado Potato Beetle, XVIIth International Congress of Entomology by : D. N. Ferro
Download or read book Proceedings of the Symposium on the Colorado Potato Beetle, XVIIth International Congress of Entomology written by D. N. Ferro and published by . This book was released on 1985 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Colonization Patterns and Diapause Ecology of Colorado Potato Beetle (Leptinotarsa Decemlineata), Interaction with Neonicotinoid Resistance by :
Download or read book Colonization Patterns and Diapause Ecology of Colorado Potato Beetle (Leptinotarsa Decemlineata), Interaction with Neonicotinoid Resistance written by and published by . This book was released on 2013 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rationale: In 2011, Wisconsin farmers grew 25.5 thousand hectares of cultivated potato worth an estimated 267 million dollars. Since 1995, systemic neonicotinoids have been used on approximately 85% of these acres to manage the Colorado potato beetle, Leptinotarsa decemlineata (Say) and other key pests. As a result of long-term reliance, neonicotinoid resistance in Colorado potato beetle has become common. In the spring of 2008 and 2009, growers reported changes in the colonization timing of Colorado potato beetle. Specifically, it was suggested that beetles were either extending or delaying their arrival times in commercial fields. Observed changes in beetle ecology typically occurred where neonicotinoid resistance had previously been documented in past seasons and may be an indication of an evolving relationship between insecticide resistance and changes in diapause patterns. A long colonization period resulted in the presence of several life stages of this insect in the crop simultaneously. Where protracted or delayed emergence occurred, many growers chose to manage these multiple life stages with high-risk, foliar applications. With increasing input costs growers may avoid proactive resistance management strategies, continuing to use generic neonicotinoid compounds paired with inexpensive, high risk foliar insecticide applications to manage resistant populations and maintain profit margins. Project Goal: To better understand the relationship between neonicotinoid use, Colorado potato beetle resistance, and environmental fate of neonicotinoids in the Central Sands agroecosystem. Objectives: I) To define the influence of previous (year) potato fields and adjacent diapause habitats on field scale Colorado potato beetle abundance. II) To use a common garden dormancy experiment to examine relationships between insecticide resistance, overwintering emergence phenology, and beetle fitness in field collected beetle populations. III) To document in-plant concentration and environmental fate of neonicotinoid insecticides when systemically applied in potato. Impact and Outcomes: An improved understanding of insecticide application methods and their effects on insect resistance management, insect ecology, and the surrounding environment will improve the long-term viability of systemic insecticides, which have become a keystone in our management program. Deliverable outcomes will inform sustainable, environmentally sound management plans for potato production systems and other specialty crops where systemic applications are commonplace.
Book Synopsis Potato Pests by : Charles Valentine Riley
Download or read book Potato Pests written by Charles Valentine Riley and published by . This book was released on 1876 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of Agricultural Entomology by :
Download or read book Journal of Agricultural Entomology written by and published by . This book was released on 1995 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Potato Pest Biology and Management by : Geoffrey W. Zehnder
Download or read book Advances in Potato Pest Biology and Management written by Geoffrey W. Zehnder and published by American Phytopathological Society. This book was released on 1994 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in potato pest biology and management: insects; Advances in potato pest biology and management: bacteria and fungi; Advances in potato pest biology and management: nematodes; Pesticides resistance and resistance mangement; Alternative management strategies for potato pest: cultural and biological control; Alternative management strategies for potato pest: host plant resistance; Modeling and expert systems in potato pest management; Application of biotechnology in potato pest management; Potato pest management: a global view.
Book Synopsis Population Dynamics of the Colorado Potato Beetle, Leptinotarsa Decemlineata (Say) on Tomato in Eastern Ontario [microform] by : Latheef, Mohamed Abdul
Download or read book Population Dynamics of the Colorado Potato Beetle, Leptinotarsa Decemlineata (Say) on Tomato in Eastern Ontario [microform] written by Latheef, Mohamed Abdul and published by National Library of Canada. This book was released on 1972 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Population Dynamics of the Colorado Potato Beetle, Leptinotarsa Decemlineata (Say)(Coleoptera: Chrysomelidae), in Western Massachusetts, with Particular Emphasis on Migration and Dispersal Processes by : Robert Hurley Voss
Download or read book Population Dynamics of the Colorado Potato Beetle, Leptinotarsa Decemlineata (Say)(Coleoptera: Chrysomelidae), in Western Massachusetts, with Particular Emphasis on Migration and Dispersal Processes written by Robert Hurley Voss and published by . This book was released on 1989 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: