Within-Field Spatial Structure of Colorado Potato Beetle (Coleoptera: Chrysomelidae) Populations in New Brunswick

Boiteau, Gilles

doi:10.1603/0046-225x-34.2.446

Cited by 11 publications

(8 citation statements)

References 16 publications

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“…There are several reports that support the utility of Geographic Information Systems (GIS) and geostatistics methods in studying the spatial distribution of insects (Midgarden et al 1993, Ribes-Dasi et al 1998, Farias et al 2004, Boiteau 2005, Ramirez-Dávila et al 2005, Castillo et al 2006, Sciarretta & Trematerra 2006. Spatial analysis is based on the theory of regional-based variables proposed by Matheron (1970), whereby the value of a variable at a given point is related to the value of that variable at another nearby point (Rossi et al 1992).…”

Section: Introductionmentioning

confidence: 99%

Geostatistics and Geographic Information Systems to Study the Spatial Distribution of Grapholita molesta (Busck) (Lepidoptera: Tortricidae) in Peach Fields

Duarte

Calvo²,

Borges³

et al. 2015

Neotrop Entomol

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The oriental fruit moth, Grapholita molesta (Busck), is the most serious pest in peach, and several insecticide applications are required to reduce crop damage to acceptable levels. Geostatistics and Geographic Information Systems (GIS) are employed to measure the range of spatial correlation of G. molesta in order to define the optimum sampling distance for performing spatial analysis and to determine the current distribution of the pest in peach orchards of southern Uruguay. From 2007 to 2010, 135 pheromone traps per season were installed and georeferenced in peach orchards distributed over 50,000 ha. Male adult captures were recorded weekly from September to April. Structural analysis of the captures was performed, yielding 14 semivariograms for the accumulated captures analyzed by generation and growing season. Two sets of maps were constructed to describe the pest distribution. Nine significant models were obtained in the 14 evaluated periods. The range estimated for the correlation was from 908 to 6884 m. Three hot spots of high population level and some areas with comparatively low populations were constant over the 3-year period, while there is a greater variation in the size of the population in different generations and years in other areas.

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Section: Introductionmentioning

confidence: 99%

Geostatistics and Geographic Information Systems to Study the Spatial Distribution of Grapholita molesta (Busck) (Lepidoptera: Tortricidae) in Peach Fields

Duarte

Calvo²,

Borges³

et al. 2015

Neotrop Entomol

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“…1990; Tisler and Zehnder 1990) or spatial structure (Blom and Fleischer 2001; Blom et al. 2002; Boiteau 2005) of CPB populations suggest only restricted movement activity in the mid‐season.…”

Section: Introductionmentioning

confidence: 99%

“…These and other studies on CPB dispersal, however, focused chiefly on the inward (early season) or outward (late season) dispersal or host location of the CPB using markrelease-recapture technique (Boiteau 1986(Boiteau , 2001Grafius 1993, Jermy et al 1988;Follett et al 1996;Noronha and Cloutier 1999), whereas the number of studies on within-field or mid-season movement are rather limited. Indirect observations examining insecticide resistance (Heim et al 1990;Tisler and Zehnder 1990) or spatial structure (Blom and Fleischer 2001;Blom et al 2002;Boiteau 2005) of CPB populations suggest only restricted movement activity in the mid-season.…”

Section: Introductionmentioning

confidence: 99%

Within field movement of overwintered Colorado potato beetle: a patch‐based approach

Schmera

Szentesi

Jermy

2006

J Applied Entomology

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After comparing the persistence of four marking techniques, a mark-release-resight study was performed to characterize mid-season movement of the Colorado potato beetle [Leptinotarsa decemlineata (Say); Col., Chrysomelidae] simultaneously in a fallow and in a wheat field. Isolated patches of potatoes were installed in a random spatial arrangement on both fields similarly. Overwintered beetles were individually marked and released. Beetles showed limited inter-patch movement activity (15.9% of recovery events) with an overall mean daily dispersal of 0.309 m (0.0-7 m). There was a significant difference in the insectsÕ movement distance between the fallow and wheat field but there was no difference between the movement distances of males and females. The distance between the patches varied between 1 and 7.81 m, and inter-patch movement was infrequent (15.9%). Results suggest that surrounding fields by wheat rather than fallow grounds should be studied as a possible strategy to reduce the movement of overwintered beetles between potato fields.

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“…Spring colonization of the next year's crop is essentially proportional to the distance from the previous year's potato crop up to some 1.5 km in distance. Rotation away from the previous year's potato crop is as effective against low (Boiteau et al 2008a) as high (Weisz et al 1996;Blom and Fleischer 2001;Boiteau 2005) Colorado potato beetle densities, but its use is limited by the lack of access to sufficient land within a farm over a rotation period. There is evidence that extending this strategy to the regional scale would further reduce the overall abundance of the pest (Sexson and Wyman 2005).…”

Section: Crop Rotationmentioning

confidence: 99%

Insect Pest Control on Potato: Harmonization of Alternative and Conventional Control Methods

Boiteau

2010

Am. J. Pot Res

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The development of insect pest management strategies for potato has long been based on the eventual replacement of insecticides by alternative methods. This paper discusses the importance of moving away from this confrontational approach and toward the harmonization of conventional and alternative insect control concepts. A harmonized set of control methods should speed up progress towards a truly integrated management approach that provides both long and short term crop protection. Changing the paradigm does not resolve all the problems. Constraints to the development and implementation of the different types of control methods are discussed using selected examples. The harmonization concept has been discussed in general terms elsewhere but to the best of my knowledge it is applied here for the first time specifically to potato crop protection.Resumen El desarrollo de estrategias de manejo de insectos plaga para papa se ha basado por mucho tiempo en el eventual reemplazo de insecticidas por métodos alternativos. Este artículo discute la importancia de alejarse de este enfoque confrontacional, e ir hacia la armonización de los conceptos convencionales y alternativos del control de insectos. Un conjunto de métodos de control armonizado podría acelerar el progreso hacia un enfoque de manejo integrado verdadero, que proporcione protección al cultivo tanto a largo como a corto plazo. El cambio de paradigmas no resuelve todos los problemas. Se discuten las limitantes para el desarrollo e implementación de los diferentes tipos de métodos de control, usando ejemplos selectos. En términos generales, se ha discutido el concepto de armonización en otros lados, pero hasta donde yo sé, se aplica aquí por primera vez específica-mente para la protección del cultivo de papa.

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Within-Field Spatial Structure of Colorado Potato Beetle (Coleoptera: Chrysomelidae) Populations in New Brunswick

Cited by 11 publications

References 16 publications

Geostatistics and Geographic Information Systems to Study the Spatial Distribution of Grapholita molesta (Busck) (Lepidoptera: Tortricidae) in Peach Fields

Geostatistics and Geographic Information Systems to Study the Spatial Distribution of Grapholita molesta (Busck) (Lepidoptera: Tortricidae) in Peach Fields

Within field movement of overwintered Colorado potato beetle: a patch‐based approach

Insect Pest Control on Potato: Harmonization of Alternative and Conventional Control Methods

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