Latin American Research on Spodoptera frugiperda (Lepidoptera: Noctuidae)

Andrews, Keith

doi:10.2307/3495022

Cited by 117 publications

(61 citation statements)

References 10 publications

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“…Luginbill (1928), and Vickery (1929) indicated that C. insularis was an important parasitoid controlling FAW populations in its overwintering habitats of Florida and Southern Texas. This parasitoid is reported to attack eggs and larvae of noctuids such as F. subterranean, P. saucia, T. ni, H. zea, S. eridania, S. exigua, S. frugiperda, S. ornithogalli, S. praefica, and the pyralids, Loxostege stictidalis (L.), Ephestia eleutella (Hbn), and it is distributed in the US (Ashley et al 1980(Ashley et al , 1982(Ashley et al , 1983Ashley 1986, Butler et al 1982, Pair et al 1986, Andrews 1988, Africa, and Hawaii (Marsh 1978), and Venezuela (Notz 1972). In this survey, C. insularis was found in FAW larvae collected from V2, and V3 corn.…”

Section: Resultsmentioning

confidence: 99%

Survey for Hymenopteran and Dipteran Parasitoids of the Fall Armyworm (Lepidoptera: Noctuidae) in Chiapas, Mexico

Ruiz-Nájera¹,

Molina-Ochoa²,

Carpenter³

et al. 2007

Journal of Agricultural and Urban Entomology

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Section: Resultsmentioning

confidence: 99%

Survey for Hymenopteran and Dipteran Parasitoids of the Fall Armyworm (Lepidoptera: Noctuidae) in Chiapas, Mexico

Ruiz-Nájera¹,

Molina-Ochoa²,

Carpenter³

et al. 2007

Journal of Agricultural and Urban Entomology

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“…Here we present a study on another closely coevolved system for which we specifically tested the hypothesis of time‐saving competition avoidance. The solitary endoparasitoids Cotesia marginiventris (Cresson) (Hymenoptera: Braconidae) and Campoletis sonorensis (Cameron) (Hymenoptera: Ichneumonidae) are the main parasitoid species that attack larvae of Spodoptera frugiperda (Lepidoptera: Noctuidae), one of the most important insect pests of different crops in the Americas (Sparks 1979; Andrews 1988; Ashley et al . 1989).…”

Section: Introductionmentioning

confidence: 99%

Odour‐mediated long‐range avoidance of interspecific competition by a solitary endoparasitoid: a time‐saving foraging strategy

Tamò

Roelfstra

Guillaume

et al. 2006

Journal of Animal Ecology

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Summary 1.In studies on optimal foraging strategies, long-range decisions in the pursuit of resource are rarely considered. This is also the case for sympatric parasitoids, which may be confronted with the decision to accept or reject host larvae that are already parasitized by a competing species. They can be expected to reject already parasitized hosts if it is likely that they will lose the resulting intrinsic competition. However, examples of such interspecific host discrimination are rare. 2. We propose that parasitoids that are not egg-limited should reject inferior hosts only if it saves them time, and that this will be achieved mainly when the parasitoids are able to detect competitors from a distance. We tested this hypothesis using the sympatric parasitoids Cotesia marginiventris (Cresson) and Campoletis sonorensis (Cameron). 3. C. sonorensis was found to be the superior intrinsic competitor but, upon contact with a host larva, both wasps readily accepted hosts that had already been parasitized by the other species. However, in an olfactometer experiment, C. marginiventris females were found to strongly avoid the odour of their superior competitor. 4. These results are in accordance with a time optimization scenario, whereby the inferior competitor accepts competition if it costs only an egg, but avoids competition if it may save time that can be allocated to the search for more profitable hosts. 5. Models on host discrimination strategies in parasitoids had not yet considered discrimination from a distance. Long-range foraging decisions can also be expected for other organisms that have to choose between resources of varying suitability and profitability.

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“…Smith, 1797) (Lepidoptera: Noctuidae) a polyphagous insect, which is widely distributed in tropical and subtropical regions of the Americas (Andrews, 1988), and is considered the main pest of maize in Brazil (Gallo et al, 2002;Cruz, 2008).…”

Section: Introductionmentioning

confidence: 99%

Eficácia de milho transgênico tratado com inseticida no controle da lagarta-do-cartucho no milho safrinha no estado de São Paulo, Brasil

et al. 2017

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Several genetically modified maize events expressing insecticidal proteins from Bacillus thuringiensis (Bt) have been commercially available in Brazil, intended to control of fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae). The objective of this study was to evaluate the efficiency of transgenic (Bt) and conventional (non-Bt) hybrids in the control of fall armyworm, treated or not with insecticides throughout three late growing seasons. To this end, trials were conducted at three locations in the state of São Paulo, in a randomized complete block design, in factorial arrangements with 5x4, 5x4 and 8x4 factors, respectively. The first factor consisted of the number of commercial hybrids of different companies. The second factor was represented by the different control managements of insect (non-Bt hybrid with and without insecticide; Bt hybrid with and without insecticide). The damage caused by fall armyworm was evaluated on a visual 1-9 scale, from score 0 (no damage) to 9 (totally destroyed whorl), and grain yield (kg ha -1 ). The data were analyzed by analysis of variance and the means compared by the Tukey test at 5% probability for each parameter evaluated at each location. For the Bt hybrids, the damage scores attributed to fall armyworm were lower and the proteins Cry 1F, Cry 1A105 and VIP3Aa20 were the most efficient in reducing leaf damage. Insecticide applications proved efficient in reducing leaf damage caused by the pest. Application of insecticides to Bt hybrids generally reduced leaf damage, especially for Cry1Ab-producing hybrids, which were the least effective in reducing pest damage without insecticides.Index terms: Zea mays; Spodoptera frugiperda; pest management. RESUMODiversas tecnologias de milho geneticamente modificado (Bt) foram liberadas comercialmente desde 2007 visando principalmente o controle da lagarta-do-cartucho, Spodoptera frugiperda (Lepidoptera: Noctuidae). O objetivo deste trabalho foi avaliar a eficiência de híbridos transgênicos (Bt) e convencionais (não Bt) no controle lagarta-do-cartucho, submetidas ou não a inseticidas. Para isso, foram conduzidos ensaios em três localidades do estado de São Paulo nas safrinhas de 2009, 2010 e 2011, com delineamento experimental de blocos casualizados, em esquema fatorial 5x4, 5x4 e 8x4, respectivamente. O primeiro fator correspondeu ao número de híbridos comerciais de diferentes empresas. O segundo fator foi constituído pela utilização de diferentes manejos de controle do inseto. Para a avaliação dos danos ocasionados pela lagarta-do-cartucho, foram realizadas amostragens ao acaso de 20 plantas por parcela, aplicando-se uma escala de notas visuais, atribuindo notas que variam de 0 (sem dano) a 9 (cartucho totalmente destruído) e obtido a produtividade de grãos. Os dados foram submetidos à análise de variância e as médias comparadas pelo teste de Tukey a 5% de probabilidade, para cada parâmetro avaliado em cada localidade. Os híbridos transgênicos proporcionaram redução nas notas de danos atribuídas a lagarta-do-cartu...

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Latin American Research on Spodoptera frugiperda (Lepidoptera: Noctuidae)

Cited by 117 publications

References 10 publications

Survey for Hymenopteran and Dipteran Parasitoids of the Fall Armyworm (Lepidoptera: Noctuidae) in Chiapas, Mexico

Survey for Hymenopteran and Dipteran Parasitoids of the Fall Armyworm (Lepidoptera: Noctuidae) in Chiapas, Mexico

Odour‐mediated long‐range avoidance of interspecific competition by a solitary endoparasitoid: a time‐saving foraging strategy

Eficácia de milho transgênico tratado com inseticida no controle da lagarta-do-cartucho no milho safrinha no estado de São Paulo, Brasil

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