Potential Interactions of Early Season Herbicides and Insecticides in Cotton PDF Download
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Author: Derek Lane Clarkson
Publisher:
ISBN: 9781303950803
Category : Cotton
Languages : en
Pages : 132
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Book Description
Cotton growth early in the season is affected by damaging levels of thrips in many production fields in Arkansas. During this time, insecticides used to control thrips and herbicides used to control weeds are often present at the same time on the cotton plant. This research explores how various combinations of herbicides and insecticides influence thrips numbers and cotton plant growth parameters early in the growing season. Pathways evaluated included interactions between preemergence herbicides and insecticide seed treatments and interactions between common tank-mixed foliar herbicides and selected foliar insecticides. No interactions in thrips control or plant growth were observed when using preemergence herbicides in combination with insecticide seed treatments. However, efficacy varied between chosen insecticide seed treatments and it may be concluded that in this experiment imidacloprid seed treatments exhibited greater control of thrips numbers than thiamethoxam seed treatments. There were isolated herbicide-insecticide interactions affecting plant growth parameters, but overall the co-application of tested herbicides and insecticides offer cotton producers the ability to integrate thrips and weed control without loss of thrips efficacy or negative impact on plant growth. Herbicide-insecticide interactions examined in this study suggested that pesticide combinations present on the cotton plant simultaneously, early in the season, have no significant interaction which may affect thrips control and early season cotton plant growth.
Author: Derek Lane Clarkson
Publisher:
ISBN: 9781303950803
Category : Cotton
Languages : en
Pages : 132
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Book Description
Cotton growth early in the season is affected by damaging levels of thrips in many production fields in Arkansas. During this time, insecticides used to control thrips and herbicides used to control weeds are often present at the same time on the cotton plant. This research explores how various combinations of herbicides and insecticides influence thrips numbers and cotton plant growth parameters early in the growing season. Pathways evaluated included interactions between preemergence herbicides and insecticide seed treatments and interactions between common tank-mixed foliar herbicides and selected foliar insecticides. No interactions in thrips control or plant growth were observed when using preemergence herbicides in combination with insecticide seed treatments. However, efficacy varied between chosen insecticide seed treatments and it may be concluded that in this experiment imidacloprid seed treatments exhibited greater control of thrips numbers than thiamethoxam seed treatments. There were isolated herbicide-insecticide interactions affecting plant growth parameters, but overall the co-application of tested herbicides and insecticides offer cotton producers the ability to integrate thrips and weed control without loss of thrips efficacy or negative impact on plant growth. Herbicide-insecticide interactions examined in this study suggested that pesticide combinations present on the cotton plant simultaneously, early in the season, have no significant interaction which may affect thrips control and early season cotton plant growth.
Author: Christopher D. McAllister
Publisher:
ISBN:
Category : Cotton
Languages : en
Pages : 162
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Book Description
Author: Cory Joseph Vineyard
Publisher:
ISBN:
Category : Cotton
Languages : en
Pages : 121
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Book Description
An apparent reduction in the performance of neonicotinoid seed treatments in controlling thrips, especially in cotton, has been observed, which has coincided with the increased use of both pre- and post-emergence herbicides to control glyphosate-resistant weeds. The objective of this research was to evaluate the potential interactions of both pre- and post-emergence herbicides on the efficacy of insecticide and fungicide seed treatments in cotton Aldicarb along with imidacloprid and thiamethoxam seed treatments reduced thrips numbers compared with non-treated seed. However, thiamethoxam did not provide effective control. Some pre-emergence herbicide treatments reduced plant health. While there was evidence that thrips injury and herbicides could both negatively affect plant health, there was little indication of interactions between these factors, indicating that the efficacy of thrips treatments was the primary factor affecting yield. Fungicide seed treatments also generally improved seedling health and improved stand density in all tests. In these tests, negative effects of pre-emergence herbicides on plant health were also observed, but these data indicated no interaction with fungicide seed treatments. Tests were also conducted to determine the potential interaction of insecticide seed treatments and post-emergence herbicides. In 2013, applications of glufosinate or glufosinate plus s-metolachlor caused substantial plant injury as evidenced by low vigor ratings, decreased plant biomass and height, and yield. While there was clear evidence that thrips and postemergence herbicides, especially glufosinate, negatively affected plant health, there was little evidence of interactions between these two factors. The role of microbial decay in the diminishing activity of neonicotinoid insecticides use as seed treatment was also tested. Sterilizing the soil reduced the concentrations of the imidacloprid and thiamethoxam metabolites indicating that soil microbes can degrade both insecticides. However, the amounts of degradation to secondary metabolites were relatively low, and it is unlikely that microbial metabolism of either insecticide would appreciably impact their performance as seed treatments. Collectively, these data indicate the negative impacts of thrips, seedling disease and herbicide injury would be additive. Using herbicides at recommended rates and according to label restriction should reduce the risk of compounding the effects of thrips or seedling disease with herbicide injury.
Author: Eric F. Hequet
Publisher: Texas Tech University Press
ISBN: 9780896725904
Category : Reference
Languages : en
Pages : 208
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Book Description
An essential reference for anyone searching for ways to avoid or mitigate the problem of cotton stickiness.
Author: G. A. Matthews
Publisher: Oxford University Press, USA
ISBN:
Category : Science
Languages : en
Pages : 624
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Book Description
The cotton plant; Insects and mites; Pest management.
Author: Andrew Price
Publisher: BoD – Books on Demand
ISBN: 9535111124
Category : Technology & Engineering
Languages : en
Pages : 666
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Book Description
Herbicide use is a common component of many weed management strategies in both agricultural and non-crop settings. However, herbicide use practices and recommendations are continuously updated and revised to provide control of ever-changing weed compositions and to preserve efficacy of current weed control options. Herbicides - Current Research and Case Studies in Use provides information about current trends in herbicide use and weed control in different land and aquatic settings as well as case studies in particular weed control situations.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309172942
Category : Technology & Engineering
Languages : en
Pages : 325
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Book Description
Although chemical pesticides safeguard crops and improve farm productivity, they are increasingly feared for their potentially dangerous residues and their effects on ecosystems. The Future Role of Pesticides explores the role of chemical pesticides in the decade ahead and identifies the most promising opportunities for increasing the benefits and reducing the risks of pesticide use. The committee recommends R&D, program, and policy initiatives for federal agriculture authorities and other stakeholders in the public and private sectors. This book presents clear overviews of key factors in chemical pesticide use, including: Advances in genetic engineering not only of pest-resistant crops but also of pests themselves. Problems in pesticide useâ€"concerns about the health of agricultural workers, the ability of pests to develop resistance, issues of public perception, and more. Impending shifts in agricultureâ€"globalization of the economy, biological "invasions" of organisms, rising sensitivity toward cross-border environmental issues, and other trends. With a model and working examples, this book offers guidance on how to assess various pest control strategies available to today's agriculturist.
Author: Jack R. Mauney
Publisher:
ISBN:
Category : Cotton
Languages : en
Pages : 840
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Book Description
Author: N. Bhushan Mandava
Publisher: CRC Press
ISBN: 1351089617
Category : Science
Languages : en
Pages : 504
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Book Description
This handbook series includes several naturally occurring chemicals that exhibit biological activity. These chemicals are derived from plants, insects, and several microorganisms. Volume I of this series is covers the theory and practice of the strategies for pest control and methods for detection.Moreover, it presents extensive tables that provide the information you need to select the most appropriate bioassay for a particular plant growth regulator or hormone. In addition to the chapters on bioassays, Volume I provides a solid introduction to the theory and practice of natural pesticide use, including in-depth discussions of integrated management systems for weed and pest control, the state-of-the-art use of computers in pest management, and allelochemicals as natural protection. Guidelines on toxicological testing and EPA regulation of natural pesticides are also detailed.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309037468
Category : Medical
Languages : en
Pages : 288
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Book Description
Concern about health effects from exposure to pesticides in foods is growing as scientists learn more about the toxic properties of pesticides. The Delaney Clause, a provision of the Food, Drug and Cosmetic Act, prohibits tolerances for any pesticide that causes cancer in test animals or in humans if the pesticide concentrates in processed food or feeds. This volume examines the impacts of the Delaney Clause on agricultural innovation and on the public's dietary exposure to potentially carcinogenic pesticide residues. Four regulatory scenarios are described to illustrate the effects of varying approaches to managing oncogenic pesticide residues in food.
