Effect of Formulation, Droplet Size, and Spatial Distribution on Dose Transfer of Pesticides PDF Download
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Author: FR. Hall
Publisher:
ISBN:
Category : Distribution
Languages : en
Pages : 10
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Book Description
Spray application is a complex and dynamic process involving many interdependent components. Improvements in pesticide use efficiency will require a more intensive study of the physical and physiochemical parameters controlling droplet dynamics, deposition on defined targets and biological response. The biological effect depends on the toxicological properties of the active ingredient (AI), its formulation, the concentration and pattern of the dose at the point of action. Changes in formulation of a pesticide may result in significant changes in pest response to and hence transfer of a toxin. Encapsulation of insecticides showed significant changes in avoidance/irritant reactions by certain pests vs that recorded for standard formulations. Droplet size also affected the performance of materials tested. Separation of drop (and particle) size, concentration, and formulation effects can be useful in understanding toxin activity and developing accurate parameters for specific targets and crop protection agents.
Author: FR. Hall
Publisher:
ISBN:
Category : Distribution
Languages : en
Pages : 10
Get Book Here
Book Description
Spray application is a complex and dynamic process involving many interdependent components. Improvements in pesticide use efficiency will require a more intensive study of the physical and physiochemical parameters controlling droplet dynamics, deposition on defined targets and biological response. The biological effect depends on the toxicological properties of the active ingredient (AI), its formulation, the concentration and pattern of the dose at the point of action. Changes in formulation of a pesticide may result in significant changes in pest response to and hence transfer of a toxin. Encapsulation of insecticides showed significant changes in avoidance/irritant reactions by certain pests vs that recorded for standard formulations. Droplet size also affected the performance of materials tested. Separation of drop (and particle) size, concentration, and formulation effects can be useful in understanding toxin activity and developing accurate parameters for specific targets and crop protection agents.
Author: G. B. Beestman
Publisher: ASTM International
ISBN: 0803109792
Category :
Languages : en
Pages : 293
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Book Description
Annotation Papers from the Eighth Symposium on [title] held in Bal Harbour, FL, Oct. 1987. Twenty-three contributions present the latest in the field in both scientific (academic) and applied (industrial) technology. Annotation copyrighted by Book News, Inc., Portland, OR.
Author: L. E. Bode
Publisher: ASTM International
ISBN: 0803113889
Category : Pesticides
Languages : en
Pages : 261
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Book Description
Annotation Twenty-one peer-reviewed papers from the Tenth Symposium on [title] held in Denver, Colo., October 1989. They're organized into three categories: perspectives on pesticide risks, formulation technology and characteristics of uptake, and application systems. Annotation copyrighted by Book News, Inc., Portland, OR.
Author: G. Robert Goss
Publisher: ASTM International
ISBN: 0803124694
Category :
Languages : en
Pages : 328
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Book Description
Author: Paul D. Berger
Publisher: ASTM International
ISBN: 0803118880
Category : Pesticides
Languages : en
Pages : 422
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Book Description
Papers presented at the 13th Symposium on [title], held in Miami, Florida in November 1992. The subjects involve a wide range of disciplines of interest to formulators, basic pesticide manufacturers, applicators, and suppliers to the agrochemical industry. The volume is a compilation of the latest d
Author: AC. Chapple
Publisher:
ISBN:
Category : Diamondback moth
Languages : en
Pages : 14
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Book Description
The inefficiency of pesticide application has become a serious economic and environmental problem. Improving application efficiency requires a better understanding of the application process. The transfer of dose from spray tank to pest target involves a large set of physical and biological factors. Investigating such a complex system experimentally is extremely laborious and costly. A model is described that allows investigation of the biological consequences of altering the application parameters for foliar applied insecticides (in this case, the bacterial insecticide Bacillus thuringiensis var. Kurstaki when used against the diamondback moth (Plutella xylostella L.) with cabbage as the substrate). Parameters input into the model include the frequency distribution of droplet size, spatial distribution of the deposit, the subsequent degradation of the deposit by environmental factors, and toxicological effects against the target pest. Possible applications of the model are discussed, as are some preliminary results.
Author: J.J. Picot
Publisher: Springer Science & Business Media
ISBN: 9401156344
Category : Technology & Engineering
Languages : en
Pages : 225
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Book Description
Introduced to the technical aspects of forestry aerial spraying in the mid-1970's, we were immediately impressed by the complexity of the process of delivering pesticide to foliage. At that time, there was a vigorous public debate in New Brunswick about the ecological and public h~alth impacts of the annual spray program for the control of defoliation of spruce and fir trees by the spruce budworm. The forest industry is important to the province and changes to the established procedures of budworm control could have major economic implications. A rational debate required reliable information about the mechanics of the spraying process. There was a need to supply missing information as to required pesticide application rates, atomizer performance, off-target drift and deposit, and the effects of weather and aircraft operating factors. We were invited to initiate a research program in this domain by New Brunswick forest management officials, and what follows in this book is a logical and quantitative description of the overall process based on our own research and that of others over the intervening years. After a short introduction to aerial spraying, we begin (Chapter 2) by describing forest stands in terms of their interaction with suspended atmospheric particulate material carried along by the wind and susceptible to deposition on foliage. We introduce foliage simulators and their use in measuring the deposit of sprayed pesticide on foliage, the "biological interface" between pest and pesticide.
Author: Chester L. Foy
Publisher: CRC Press
ISBN: 1351086405
Category : Technology & Engineering
Languages : en
Pages : 737
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Book Description
Based on a conference, this book is intended to promote a better understanding of the effects of adjuvants on pesticide penetration, translocation, photodegradation and stability, spray deposition and dissipation, and the fate of herbicides in the environment.
Author: American Society of Agricultural Engineers
Publisher:
ISBN:
Category : Agricultural engineering
Languages : en
Pages : 268
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Book Description
Author: Leonardo F. Fraceto
Publisher: Springer Nature
ISBN: 3030448738
Category : Technology & Engineering
Languages : en
Pages : 373
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Book Description
This book explores the development of nanopesticides and tests of their biological activity against target organisms. It also covers the effects of nanopesticides in the aquatic and terrestrial environments, along with related subjects including fate, behaviour, mechanisms of action and toxicity. Moreover, the book discusses the potential risks of nanopesticides for non-target organisms, as well as regulatory issues and future perspectives.
