Richard Wilkins | Newcastle University (original) (raw)

Papers by Richard Wilkins

Research paper thumbnail of Persistence and mobility of aldicarb in a simulated red clay soil profile

The BCPC Conference: Pests and diseases, Volumes 1 and 2. Proceedings of an international conference held at the Brighton Hilton Metropole Hotel, Brighton, UK, 18-21 November 2002., 2002

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Research paper thumbnail of Studies on the cross resistance to nrdc 143 of a malathion resistant strain of oryzaephilus surinamensis coleoptera cucujidae

Pakistan Journal of Zoology, Jul 10, 1984

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Research paper thumbnail of Controlled-Release Granules, with Emphasis on Lignin-Based Methods

Routledge eBooks, Jan 6, 2023

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Research paper thumbnail of An evaluation of Nobble(R) against Deroceras reticulatum

Annals of Applied Biology, Apr 1, 1989

On etudie les effets du Nobble (R), melange de sulfate de cuivre, de sulfate d'aluminium, de ... more On etudie les effets du Nobble (R), melange de sulfate de cuivre, de sulfate d'aluminium, de borax et de permanganate de potassium sur les œufs, les neonates et les jeunes de D.r. Les doses de matiere active appliquees au sol, qui incluent une dose cinq fois superieure a celle recommandee, sont insuffisantes pour etre efficace contre les œufs, les nouveaux-nes et les jeunes de D.r.

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Research paper thumbnail of Controlled Delivery of Crop Protection Agents

Part 1 Introduction: controlled delivery and foliar spraying - and soil application controlled re... more Part 1 Introduction: controlled delivery and foliar spraying - and soil application controlled release technology for pest management. Part 2 Controlled delivery by sprayable systems: development and uses of microencapsulated preparation of microencapsulated insecticides and their release mechanisms. Part 3 Granular systems and soil application: soil applied controlled release products and Suscon technology biodegradable polymer methods. Part 4 Release into the air: controlled release systems for the delivery of insect pheromones. Part 5 Aquatic applications: controlled release aquatic herbicides. Part 6 Controlled delivery of biopesticides: controlled release of biological control agents microbial pesticide controlled release formulations cellular delivery systems for insecticidal proteins - living and non-living mico-organisms. Part 7 Evaluation of controlled release systems: evaluation of controlled release - efficacy, environment and commercial aspects approaches to the evaluation of controlled release pesticides in the laboratory and field.

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Research paper thumbnail of The Potential for the Controlled Delivery of Plant Growth Regulators

Elsevier eBooks, 1982

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Research paper thumbnail of Comparative effect of fenitrothion treatment on intracellular protease activities in insecticide-resistant and susceptible strains of Musca domestica L

Comparative Biochemistry and Physiology Part C: Pharmacology, Toxicology and Endocrinology, Nov 1, 1999

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Research paper thumbnail of A malathion-specific esterase in a highly resistant strain of the red flour beetle Tribolium castaneum Herbst

The BCPC Conference: Pests and diseases, Volumes 1 and 2. Proceedings of an international conference held at the Brighton Hilton Metropole Hotel, Brighton, UK, 18-21 November 2002., 2002

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Research paper thumbnail of Toxicity of soil applied herbicides to brine shrimp larvae (Artemia salina) and synergism with other pesticides.. vol. 1

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Research paper thumbnail of Book Review: The Influence of Weather on the Efficiency and Safety of Pesticide Application. The Drift of Herbicides

Outlook on Agriculture, Dec 1, 1984

A selection of papers presented during a workshop on small farm mechanisation held at the Interna... more A selection of papers presented during a workshop on small farm mechanisation held at the International Rice Research Institute in September 1981 comprises the contents of this book. Three papers examine aspects of farm machinery manufacture in the Philippines and Thailand and twelve papers arc concerned with the cost effectiveness and social consequences of introducing twowheel tractors, rice threshers, and irrigation pumps to small farms in a number of Asian countries. The papers are written primarily for economists and development agencies, although the general reader will be interested in the authors' conclusions. The first paper provides an overview and a comparison between the three countriesJapan, Taiwan, and Korea-which have already achieved significant levels of farm mechanisation, and other Asian countries. In many countries the introduction of tractors has tended to benefit the wealthy, to displace tenant farmers, and to reduce employment opportunities and unless the farmer adopts other inputs or is enabled to increase the intensity of cropping, tractor cultivation rarely seems to improve yields or production. Imported fuel, lubricants, and spares involve foreign exchange; the maintenance of tractors is a widespread and serious problem. Opportunity to undertake contract cultivation determined the profitability of tractor ownership for many farmers and this opportunity has declined with an increase in tractor ownership. Tractors reduce the need for draught animals although for some operations animals are more satisfactory than tractors and many farmers retain some animals. By contrast, pump irrigation in the Terai of eastern Nepal and tube wells in East Java improved yields, increased farm income, and increased employment. The introduction of rice threshers speeded-up the often critical post-harvest operation, but, depending on socio-economic factors, were not always more cost-effective than traditional methods of threshing. In all countries in which the rural labour force is increasing (it may be decreasing as a proportion of the total labour force) the benefits of any development which reduces employment opportunity have to be examined most carefully. A. Blair Rains

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Research paper thumbnail of Book Review: Weed Control Handbook: Principles

Outlook on Agriculture, Sep 1, 1983

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Research paper thumbnail of Feeding behaviour of the whitebacked planthopper Sogatella furcifera (Homoptera: Delphacidae) on resistant and susceptible rice plants and their extracts

Proceedings of the ... British Crop Protection Conference-pests and Diseases., 1990

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Research paper thumbnail of In vivo effect of beta-cyfluthrin on proteolytic enzyme activities in insecticide-resistant and -susceptible strains of Musca domestica

Pakistan Journal of Zoology, 2007

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Research paper thumbnail of Microcystis aeruginosa cell culture and microcystin-LR extraction

Zhongguo Huanjing Kexue, 2000

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Research paper thumbnail of Extraction of 14C-thiobencarb from rice-field soils

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Research paper thumbnail of Degradation and adsorption of an anthranilate fungicide in soils from Northumberland, UK

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Research paper thumbnail of PRICE: a decision support tool for the control of weeds in tropical irrigated rice

Zenodo (CERN European Organization for Nuclear Research), Dec 1, 2001

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Research paper thumbnail of PRICE: a decision support tool for the control of weeds in tropical irrigated rice

Zenodo (CERN European Organization for Nuclear Research), Jan 18, 2012

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Research paper thumbnail of Dissipation of thiobencarb and oxdiazon in soil

Abstracts of Papers of the American Chemical Society: 229th National Meeting of the American Chemical Society, 2005

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Research paper thumbnail of Lethal and Antifeeding Effects of Carbofuran against the Whitebacked Planthopper, Sogatella furcifera (Horvath) (Homoptera: Delphacidae)

Chinese Journal of Rice Science, 1992

Lethal and antifeeding effects of carbofuran against the adult females of Sogatella furcifera wer... more Lethal and antifeeding effects of carbofuran against the adult females of Sogatella furcifera were studied by measuring insect mortality and feeding reduction with leafsheath, topical and root-zone applications. The LD_(50) values for leafsheath, topical and root-zone applications were 0.51μg/cm~2, 0.86μg/g, and 8.82μmol/l, respectively. Among the application methods, topical application of carbofuran was most effective against S. furcifera. Honeydew excretion re- duced significantly when S. furcifera fed on the leafsheaths of susceptible TN1 plants treated with carbofuran in 0.016μg/cm~2 and in 0.1μmol/l at root zone, and when insects were treated topically at 0.002ng/female. Feeding behaviour of S. furcifera on TN1 plants treated at the root zone was al- so investigated using an electronic device.

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Research paper thumbnail of Persistence and mobility of aldicarb in a simulated red clay soil profile

The BCPC Conference: Pests and diseases, Volumes 1 and 2. Proceedings of an international conference held at the Brighton Hilton Metropole Hotel, Brighton, UK, 18-21 November 2002., 2002

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Studies on the cross resistance to nrdc 143 of a malathion resistant strain of oryzaephilus surinamensis coleoptera cucujidae

Pakistan Journal of Zoology, Jul 10, 1984

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Controlled-Release Granules, with Emphasis on Lignin-Based Methods

Routledge eBooks, Jan 6, 2023

Bookmarks Related papers MentionsView impact

Research paper thumbnail of An evaluation of Nobble(R) against Deroceras reticulatum

Annals of Applied Biology, Apr 1, 1989

On etudie les effets du Nobble (R), melange de sulfate de cuivre, de sulfate d'aluminium, de ... more On etudie les effets du Nobble (R), melange de sulfate de cuivre, de sulfate d'aluminium, de borax et de permanganate de potassium sur les œufs, les neonates et les jeunes de D.r. Les doses de matiere active appliquees au sol, qui incluent une dose cinq fois superieure a celle recommandee, sont insuffisantes pour etre efficace contre les œufs, les nouveaux-nes et les jeunes de D.r.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Controlled Delivery of Crop Protection Agents

Part 1 Introduction: controlled delivery and foliar spraying - and soil application controlled re... more Part 1 Introduction: controlled delivery and foliar spraying - and soil application controlled release technology for pest management. Part 2 Controlled delivery by sprayable systems: development and uses of microencapsulated preparation of microencapsulated insecticides and their release mechanisms. Part 3 Granular systems and soil application: soil applied controlled release products and Suscon technology biodegradable polymer methods. Part 4 Release into the air: controlled release systems for the delivery of insect pheromones. Part 5 Aquatic applications: controlled release aquatic herbicides. Part 6 Controlled delivery of biopesticides: controlled release of biological control agents microbial pesticide controlled release formulations cellular delivery systems for insecticidal proteins - living and non-living mico-organisms. Part 7 Evaluation of controlled release systems: evaluation of controlled release - efficacy, environment and commercial aspects approaches to the evaluation of controlled release pesticides in the laboratory and field.

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Research paper thumbnail of The Potential for the Controlled Delivery of Plant Growth Regulators

Elsevier eBooks, 1982

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Comparative effect of fenitrothion treatment on intracellular protease activities in insecticide-resistant and susceptible strains of Musca domestica L

Comparative Biochemistry and Physiology Part C: Pharmacology, Toxicology and Endocrinology, Nov 1, 1999

Bookmarks Related papers MentionsView impact

Research paper thumbnail of A malathion-specific esterase in a highly resistant strain of the red flour beetle Tribolium castaneum Herbst

The BCPC Conference: Pests and diseases, Volumes 1 and 2. Proceedings of an international conference held at the Brighton Hilton Metropole Hotel, Brighton, UK, 18-21 November 2002., 2002

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Toxicity of soil applied herbicides to brine shrimp larvae (Artemia salina) and synergism with other pesticides.. vol. 1

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Book Review: The Influence of Weather on the Efficiency and Safety of Pesticide Application. The Drift of Herbicides

Outlook on Agriculture, Dec 1, 1984

A selection of papers presented during a workshop on small farm mechanisation held at the Interna... more A selection of papers presented during a workshop on small farm mechanisation held at the International Rice Research Institute in September 1981 comprises the contents of this book. Three papers examine aspects of farm machinery manufacture in the Philippines and Thailand and twelve papers arc concerned with the cost effectiveness and social consequences of introducing twowheel tractors, rice threshers, and irrigation pumps to small farms in a number of Asian countries. The papers are written primarily for economists and development agencies, although the general reader will be interested in the authors' conclusions. The first paper provides an overview and a comparison between the three countriesJapan, Taiwan, and Korea-which have already achieved significant levels of farm mechanisation, and other Asian countries. In many countries the introduction of tractors has tended to benefit the wealthy, to displace tenant farmers, and to reduce employment opportunities and unless the farmer adopts other inputs or is enabled to increase the intensity of cropping, tractor cultivation rarely seems to improve yields or production. Imported fuel, lubricants, and spares involve foreign exchange; the maintenance of tractors is a widespread and serious problem. Opportunity to undertake contract cultivation determined the profitability of tractor ownership for many farmers and this opportunity has declined with an increase in tractor ownership. Tractors reduce the need for draught animals although for some operations animals are more satisfactory than tractors and many farmers retain some animals. By contrast, pump irrigation in the Terai of eastern Nepal and tube wells in East Java improved yields, increased farm income, and increased employment. The introduction of rice threshers speeded-up the often critical post-harvest operation, but, depending on socio-economic factors, were not always more cost-effective than traditional methods of threshing. In all countries in which the rural labour force is increasing (it may be decreasing as a proportion of the total labour force) the benefits of any development which reduces employment opportunity have to be examined most carefully. A. Blair Rains

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Book Review: Weed Control Handbook: Principles

Outlook on Agriculture, Sep 1, 1983

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Feeding behaviour of the whitebacked planthopper Sogatella furcifera (Homoptera: Delphacidae) on resistant and susceptible rice plants and their extracts

Proceedings of the ... British Crop Protection Conference-pests and Diseases., 1990

Bookmarks Related papers MentionsView impact

Research paper thumbnail of In vivo effect of beta-cyfluthrin on proteolytic enzyme activities in insecticide-resistant and -susceptible strains of Musca domestica

Pakistan Journal of Zoology, 2007

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Microcystis aeruginosa cell culture and microcystin-LR extraction

Zhongguo Huanjing Kexue, 2000

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Extraction of 14C-thiobencarb from rice-field soils

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Degradation and adsorption of an anthranilate fungicide in soils from Northumberland, UK

Bookmarks Related papers MentionsView impact

Research paper thumbnail of PRICE: a decision support tool for the control of weeds in tropical irrigated rice

Zenodo (CERN European Organization for Nuclear Research), Dec 1, 2001

Bookmarks Related papers MentionsView impact

Research paper thumbnail of PRICE: a decision support tool for the control of weeds in tropical irrigated rice

Zenodo (CERN European Organization for Nuclear Research), Jan 18, 2012

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Dissipation of thiobencarb and oxdiazon in soil

Abstracts of Papers of the American Chemical Society: 229th National Meeting of the American Chemical Society, 2005

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Lethal and Antifeeding Effects of Carbofuran against the Whitebacked Planthopper, Sogatella furcifera (Horvath) (Homoptera: Delphacidae)

Chinese Journal of Rice Science, 1992

Lethal and antifeeding effects of carbofuran against the adult females of Sogatella furcifera wer... more Lethal and antifeeding effects of carbofuran against the adult females of Sogatella furcifera were studied by measuring insect mortality and feeding reduction with leafsheath, topical and root-zone applications. The LD_(50) values for leafsheath, topical and root-zone applications were 0.51μg/cm~2, 0.86μg/g, and 8.82μmol/l, respectively. Among the application methods, topical application of carbofuran was most effective against S. furcifera. Honeydew excretion re- duced significantly when S. furcifera fed on the leafsheaths of susceptible TN1 plants treated with carbofuran in 0.016μg/cm~2 and in 0.1μmol/l at root zone, and when insects were treated topically at 0.002ng/female. Feeding behaviour of S. furcifera on TN1 plants treated at the root zone was al- so investigated using an electronic device.

Bookmarks Related papers MentionsView impact