An inventory of parasitic Hymenoptera in banana plantations under two pesticide regimes

Matlock, Robert B.; Cruz, R. de la

doi:10.1016/s0167-8809(02)00002-6

Cited by 29 publications

(22 citation statements)

References 24 publications

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“…The World Health Organization (WHO) has estimated that some 20,000 people die annually from pesticide exposure (WHO, 1990) but those chemicals also protect yields, profits and public health. Some insecticides have been shown to devastate natural enemy populations in some systems (e.g., Boza Barducci, 1972;Matlock and de la Cruz, 2002), but in others, particularly with some of the more novel insecticides, there appear to be minimal impacts (Naranjo et al, 2004). Insecticides have had profound effects on predatory bird populations in some instances (e.g., Sibly et al, 2000) but others have been used in seemingly sensitive ecosystems for decades without evidence of impact upon non-target organisms (Resh et al, 2004;Holmes, 1998).…”

Section: Current Trends In Insecticide Usementioning

confidence: 99%

Insecticide use: Contexts and ecological consequences

2007

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Constraints to the sustainability of insecticide use include effects on human health, agroecosystems (e.g., beneficial insects), the wider environment (e.g., non-target species, landscapes and communities) and the selection of insecticide-resistant traits. It is possible to find examples where insecticides have impacted disastrously on all these variables and others where the hazards posed have been (through accident or design) ameliorated. In this review, we examine what can currently be surmised about the direct and indirect long-term, field impacts of insecticides upon the environment. We detail specific examples, describe current insecticide use patterns, consider the contexts within which insecticide use occurs and discuss the role of regulation and legislation in reducing risk. We consider how insecticide use is changing in response to increasing environmental awareness and inevitably, as we discuss the main constraints to insecticide use, we suggest why they cannot easily be discarded.

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Section: Current Trends In Insecticide Usementioning

confidence: 99%

Insecticide use: Contexts and ecological consequences

2007

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“…In sites with low agrochemical use, high parasitism may have resulted from high parasitoid abundance and diversity. Abundance and richness of parasitoids is negatively affected by nematocide and insecticide application (Matlock and de la Cruz 2002), and use of the insecticide endosulfan (i.e., brand name Thiodan) is common in the study region (Damon 2000). Almost all of the sites with zero agrochemical use were forests, and thus, some other feature of the forests, such as increases in resources, not measured in this study may have contributed to the observed pattern.…”

Section: Discussionmentioning

confidence: 70%

Local and Landscape Drivers of Ant Parasitism in a Coffee Landscape

Mora¹,

Pérez‐Lachaud²,

Lachaud³

et al. 2015

Environ Entomol

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Parasitism of ants that nest in rotting wood by eucharitid wasps was studied in order to examine whether habitat and season influence ant parasitism, vegetation complexity and agrochemical use correlate with ant parasitism, and whether specific local and landscape features of agricultural landscapes correlate with changes in ant parasitism. In a coffee landscape, 30 coffee and 10 forest sites were selected in which local management (e.g., vegetation, agrochemical use) and landscape features (e.g., distance to forest, percent of rustic coffee nearby) were characterized. Rotten logs were sampled and ant cocoons were collected from logs and cocoons were monitored for parasitoid emergence. Sixteen ant morphospecies in three ant subfamilies (Ectatomminae, Ponerinae, and Formicinae) were found. Seven ant species parasitized by two genera of Eucharitidae parasitoids (Kapala and Obeza) were reported and some ant-eucharitid associations were new. According to evaluated metrics, parasitism did not differ with habitat (forest, high-shade coffee, low-shade coffee), but did increase in the dry season for Gnamptogenys ants. Parasitism increased with vegetation complexity for Gnamptogenys and Pachycondyla and was high in sites with both high and low agrochemical use. Two landscape variables and two local factors positively correlated with parasitism for some ant genera and species. Thus, differences in vegetation complexity at the local and landscape scale and agrochemical use in coffee landscapes alter ecological interactions between parasitoids and their ant hosts.

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“…In some farming systems it has documented the negative effect of broad-spectrum insecticides on populations of natural enemies (Matlock and De la Cruz, 2002;Romero, 2004) and the ecological impact of farming systems of high performance is enhanced by the intensive use of insecticides, in these systems, the lack of information by decision makers, promotes actions that harm non-target species and eliminate organisms that serve as food for others in the food chain (Altieri et al, 1989;Holland y Luff, 2000;Romero, 2004).…”

Section: Materiales Y Métodosmentioning

confidence: 99%

Pulgón lanígero e impacto ambiental por el uso de pesticidas en manzano en Chihuahua, México

Beltrán

Cuéllar

López³

et al. 2017

Remexca

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El manzano (Malus sylvestris var domestica Bork) es uno de los frutales caducifolios más importantes en el mundo.Anivel nacional, Chihuahua es el principal productor de manzana con una aportación de 66%. En este cultivo se hospedan diversos fitófagos entre los que se encuentra el pulgón lanígero del manzano, y cuyo combate es con base en insecticidas. En este estudio se analizó la información generada durante los años 2010 y 2011 sobre temperatura y precipitación, ocurrencia de pulgón lanígero en ascenso por el tronco del árbol, número de colonias aéreas y se calculó el índice de impacto ambiental por la aplicación de plaguicidas en tres huertos de manzano ubicados en Cuauhtémoc, Chihuahua, con la variedad ‘Golden Delicious’sobreportainjertofrancoycondiferentemanejode plagas (f itófagos y f itopatógenos). Los resultados permitieron detectar un diferencial de 96 mm en la precipitación ocurrida entre el año 2010 y 2011, diferencias signif icativas en la tasa de acumulación de calor para estos mismos años y un diferencial significativo en la ocurrencia de pulgón lanígero entre años y huertos. En relación al coeficiente de impacto ambiental, se detectó variación entre años y huertos con valores que f luctuaron entre 16 y 436 unidades de impacto ambiental. La mayor acumulación de unidades calor y menor precipitación pluvial se relacionaron con mayor número de pulgones en ascenso y colonias aéreas, además de un mayor impacto ambiental por el uso de pesticidas en manzano.

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An inventory of parasitic Hymenoptera in banana plantations under two pesticide regimes

Cited by 29 publications

References 24 publications

Insecticide use: Contexts and ecological consequences

Insecticide use: Contexts and ecological consequences

Local and Landscape Drivers of Ant Parasitism in a Coffee Landscape

Pulgón lanígero e impacto ambiental por el uso de pesticidas en manzano en Chihuahua, México

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