Review of carrot fly control in Northern Europe – 2009<sup>1</sup>

Collier, Rosemary

doi:10.1111/j.1365-2338.2009.02275.x

Cited by 3 publications

(2 citation statements)

References 4 publications

(2 reference statements)

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“…One exception is the use of information on numbers of C. rosae to deploy treatment thresholds. The use of thresholds for C. rosae in northern Europe was reviewed in 2009 following a European workshop on management of this species [ 37 ]. Treatment thresholds based on egg counts are used for the D. radicum / D. floralis complex in Norway [ 38 ].…”

Section: Approaches Used To Monitor Pest Infestationsmentioning

confidence: 99%

The Potential for Decision Support Tools to Improve the Management of Root-Feeding Fly Pests of Vegetables in Western Europe

Collier

Mazzi

Schjøll

et al. 2020

Insects

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Several important vegetable crops grown outdoors in temperate climates in Europe can be damaged by the root-feeding larvae of Diptera (Delia radicum, Delia floralis, Chamaepsila rosae, Delia platura, Delia florilega, Delia antiqua). Knowledge of pest insect phenology is a key component of any Integrated Pest Management (IPM) strategy, and this review considers the methods used to monitor and forecast the occurrence of root-feeding flies as a basis for decision-making by growers and the ways that such information can be applied. It has highlighted some current management approaches where such information is very useful for decision support, for example, the management of C. rosae with insecticidal sprays and the management of all of these pests using crop covers. There are other approaches, particularly those that need to be applied at sowing or transplanting, where knowledge of pest phenology and abundance is less necessary. Going forward, it is likely that the number of insecticidal control options available to European vegetable growers will diminish and they will need to move from a strategy which often involves using a single ‘silver bullet’ to a combination of approaches/tools with partial effects (applied within an IPM framework). For the less-effective, combined methods, accurate information about pest phenology and abundance and reliable decision support are likely to be extremely important.

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Section: Approaches Used To Monitor Pest Infestationsmentioning

confidence: 99%

The Potential for Decision Support Tools to Improve the Management of Root-Feeding Fly Pests of Vegetables in Western Europe

Collier

Mazzi

Schjøll

et al. 2020

Insects

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“…In this sense, political violence unleashed by incumbents is analogous to terrorism: it is 'a strategy of the politically weak'. 4 This paper explores how Kenyan politicians use a form of terrorism to gain votes and power, and describes in some detail the 'crooks' that use such techniques. They are a shrewd and capable lot, and will likely enjoy further political success.…”

Section: Introductionmentioning

confidence: 99%

Unhindered by the rule of law: ethnic terrorism and the 2007 Kenyan presidential election

Snow

2009

South African Journal of International Affairs

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The 2007 presidential elections in Kenya were followed by more than 1,000 deaths and the forcible displacement of perhaps 350,000. This was the result, in part, of frustrations from the miscounting that assured President Kibaki's re-election, and the ensuing violent repression of protest and dissent. Most of these deaths and dislocations, however, were caused by ethnic terrorism, undertaken periodically by Kenyan politicians since the 1991 transition to what Paul Collier labels 'democrazy'. Ethnic terrorism, part of the dynamic of violence that often plagues democratisation in the poorest nations, seeks to advance the fortunes of one ethnic group by fostering a militant, fearful identity, and uses extreme violence to spur ethnic cleansing, to the political advantage of its patrons. This long-term dynamic in Kenya has featured widespread use of tribal militias, sexual violence, and impunity for its perpetrators, and will likely continue, unless Kenya's political class complies with the Waki Report, which calls for the organisers and financiers of the violence to be prosecuted.

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Review of carrot fly control in Northern Europe – 2009¹

Collier¹

2009

EPPO Bulletin

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In February 2009, the European and Mediterranean Plant Protection Organization (EPPO) held a workshop to discuss the management of carrot fly (Psila rosae) within Europe. Prior to the workshop, participants completed a questionnaire about carrot fly and current control methods and some of the information is summarised in this paper. In general, this pest is controlled adequately at present, but there is a heavy reliance on insecticides. The responses to the questionnaire highlighted a number of issues, in particular: the limited range and efficacy of the insecticides available at present, concerns about the availability of effective control measures in the future and a need for improvements in the targeting of treatments through forecasting and monitoring and the use of treatment thresholds.

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Review of carrot fly control in Northern Europe – 2009¹

Cited by 3 publications

References 4 publications

The Potential for Decision Support Tools to Improve the Management of Root-Feeding Fly Pests of Vegetables in Western Europe

The Potential for Decision Support Tools to Improve the Management of Root-Feeding Fly Pests of Vegetables in Western Europe

Unhindered by the rule of law: ethnic terrorism and the 2007 Kenyan presidential election

Review of carrot fly control in Northern Europe – 2009¹

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Review of carrot fly control in Northern Europe – 20091

Cited by 3 publications

References 4 publications

The Potential for Decision Support Tools to Improve the Management of Root-Feeding Fly Pests of Vegetables in Western Europe

The Potential for Decision Support Tools to Improve the Management of Root-Feeding Fly Pests of Vegetables in Western Europe

Unhindered by the rule of law: ethnic terrorism and the 2007 Kenyan presidential election

Review of carrot fly control in Northern Europe – 20091

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Review of carrot fly control in Northern Europe – 2009¹

Review of carrot fly control in Northern Europe – 2009¹