Seasonal and Nocturnal Flight Activity of Spodoptera Frugiperda Males (Lepidoptera: Noctuidae) Monitored by Pheromone Traps in the Coast of Chiapas, Mexico

Rojas, Julio C.; Virgen, Armando; Malo, Edi A.

doi:10.1653/0015-4040(2004)087[0496:sanfao]2.0.co;2

Cited by 30 publications

(21 citation statements)

References 24 publications

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“…The known geographic distribution data used to model current and future suitability for FAW were gathered from the Global Biodiversity Information Facility (GBIF 2017), the PlantWise platform system (http://www.plantwise.org) and literature resources (Beserra et al 2002;Murúa & Virla 2004;Rojas et al 2004;Farias et al 2008;Virla et al 2008;Nexticapan-Garcéz et al 2009;Rios-Velasco et al 2011;Vilarinho et al 2011;Cortez-Mondaca et al 2012;Valdez-Torres et al 2012;Westbrook et al 2016). A total of 494 points were gathered to model and validate the FAW model projection, from which 240 records were removed, either because they were duplicates or because they had no geographic coordinates (Fig.…”

Section: Known Distributionmentioning

confidence: 99%

Future climate scenarios project a decrease in the risk of fall armyworm outbreaks

2017

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SUMMARYSpodoptera frugiperda, or the fall armyworm (FAW) (Lepidoptera: Noctuidae), is an endemic and important agricultural pest in America. Several outbreaks have occurred with losses estimated at millions of dollars. Insects are affected by climate factors, and climate change may affect geographical range, growth rate, abundance, survival, mortality, number of generations per year and other characteristics. These effects are difficult to project due to the complex interactions among insects, hosts and predators. The aim of the current research is to project the impact of climate change on future suitability for the expansion and final range of FAW as well as highlight the risk of damage due to the pest under current and future conditions. The modelling was carried out using two general circulation models (GCMs), CSIRO Mk3.0 and MIROC-H, for 2050 and 2100 under the A2 Special Report on Emissions Scenarios (SRES), using the known distribution of the species and the CliMond meteorological database. The possible number of generations was estimated to exceed five in the south-eastern USA by 2100. A unique modelling approach linking environmental suitability and number of generations was developed to project the risks of FAW damage. The results show changes in suitability and risk across America, with an increase in the northern hemisphere and decreases or extinction in the southern hemisphere, except for southern Brazil, Uruguay, Paraguay and northern Argentina, which indicate high future levels of risk. The current study highlights the possible extinction of a tropical pest in areas near the Equator. The two GCMs both projected increases in the low-risk category of 40% by 2050 and 23% by 2100, with the medium- and high-risk categories decreasing by >50% by 2050 and >39% by 2100, compared with the current risk. In general, agricultural pest management may become more challenging under future climate change and variation, and thus, understanding and quantifying the possible impacts of FAW under future climate conditions is essential for the future economic production of crops.

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Section: Known Distributionmentioning

confidence: 99%

Future climate scenarios project a decrease in the risk of fall armyworm outbreaks

2017

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“…Data from SoyFACE also show that 2 wk after the start of adult emergence, many moths may remain inactive beneath the canopy when conditions are unsatisfactory to B. repartella. Both temperature (Taylor 1963, Taylor andShields 1990) and wind speed (Rojas et al 2004, Bailey et al 2007 can be important determinants of moth activity, but assigning a cause for B. repartella inactivity on 24 June is difÞcult because that night was both relatively cool and calm. However, because even the relatively cool temperatures on 24 June were Ն5ЊC over thresholds for ßight in other species (Taylor 1963, Danthanarayana 1976, Taylor and Shields 1990, this seems an unlikely explanation.…”

Section: Discussionmentioning

confidence: 99%

Stem-Boring Caterpillars of Switchgrass in the Midwestern United States

Prasifka

Buhay

Sappington

et al. 2011

Annals of the Entomological Society of America

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Lepidopteran stem borers were collected from switchgrass, Panicum virgatum L., tillers showing symptoms of infestation at seven locations in Illinois and Iowa, with additional observations made on larval and adult activity. Blastobasis repartella (Dietz) (Coleophoridae), whose only known host is switchgrass, was common in plots grown for >5 yr, whereas the polyphagous stalk borer, Papaipema nebris (Guenée) (Noctuidae), was abundant in newly established (i.e., first- and second-year) switchgrass. Haimbachia albescens Capps (Crambidae) was collected from two locations in Illinois, making switchgrass the first known host for this species. Entry holes made by B. repartella and H. albescens were usually 1–2 cm above the soil surface, precluding discrimination between these species based on external appearance of damage. Although P. nebris often entered stems within 5 cm of the soil surface, they also seemed to move between stems and were the only species entering stems at heights >15 cm. Adults of B. repartella were active on and above the switchgrass canopy by 2130 hours, with peak activity at ≈0230 hours. Activity of B. repartella adults seemed greatly reduced on one night with relatively cool temperatures and low wind speeds. Data from switchgrass and giant ragweed, Ambrosia trifida L., suggest P. nebris larvae move out of switchgrass during July in search of hosts with larger diameter stems, although by then hosts such as corn, Zea mays L., or Miscanthus spp. may have outgrown the potential for serious damage. However, switchgrass could contribute to greater adult populations of P. nebris if thick-stemmed hosts such as giant ragweed are not managed.

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“…Estimates suggest that over 400 million dollars of maize production are lost annually through crop damage . FAW is considered to be a generalist feeder, exploiting a very wide host range of plants in several families (Yu et al 2003;Rojas et al 2004;Wyckhuys and O'Neil 2006). In Brazil, the insect is also an important pest of cotton.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, we cannot simply count moth numbers in the traps and ignore other factors such as temperature and crop growth stage, and even natural control. Trap captures are positively correlated with wind speed and temperature, and negatively correlated with relative humidity (Rojas et al 2004). Using pheromone traps to monitor FAW adults is the best means of deciding on the number of pesticide applications necessary to control the pest in maize (Cruz et al 2010a).…”

Section: Introductionmentioning

confidence: 99%

Using sex pheromone traps in the decision-making process for pesticide application against fall armyworm (Spodoptera frugiperda[Smith] [Lepidoptera: Noctuidae]) larvae in maize

Cruz

Figueiredo

Silva

et al. 2012

International Journal of Pest Management

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The fall armyworm, Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae), is a major pest of maize and frequently demands control measures. The timing of insecticide application is a key factor in determining its efficiency, so an experiment was designed to investigate this. Application of insecticide was based on three criteria: (i) the number of trap-caught moths in a Delta-type trap with a commercial sex pheromone lure placed in the center of the target area, soon after plant emergence; (ii) the percentage of plants exhibiting pinhole-type damage (10% or 20%), and (iii) the percentage of plants exhibiting shot hole-type damage (10% or 20%) compared to a check plot without any control measures. We found that the number of trap-caught moths was, compared to the other methods, the2 best means of deciding on insecticide application in maize to control the fall armyworm. Using pheromone traps, we obtained the best performance of the insecticide Spinosad, causing >90% larval mortality. Without insecticide application, maize yield reduction due to fall armyworm larva damage was 39%.

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Seasonal and Nocturnal Flight Activity of Spodoptera Frugiperda Males (Lepidoptera: Noctuidae) Monitored by Pheromone Traps in the Coast of Chiapas, Mexico

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 30 publications

References 24 publications

Future climate scenarios project a decrease in the risk of fall armyworm outbreaks

Future climate scenarios project a decrease in the risk of fall armyworm outbreaks

Stem-Boring Caterpillars of Switchgrass in the Midwestern United States

Using sex pheromone traps in the decision-making process for pesticide application against fall armyworm (Spodoptera frugiperda[Smith] [Lepidoptera: Noctuidae]) larvae in maize

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