Evaluation of Lures for Monitoring Silk Flies (Diptera: Ulidiidae) in Sweet Corn

Owens, David; Cherry, Ronald H.; Karounos, Michael; Nuessly, Gregg S.

doi:10.1653/024.100.0218

Cited by 8 publications

(4 citation statements)

References 25 publications

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“…Owens et al [91] studied the preferences of oviposition substrate and found that frass from the fall armyworm, S. frugiperda, is more attractive than other ovipositional substrates for E. eluta and C. massyla and tassels are more attractive than leaves while only C. massyla prefer silks to tassels. Owens et al [92] used baited monitoring universal moth traps for studying the dynamics of cornsilk flies and demonstrated that all species could be captured in traps currently used for pest monitoring with Torula yeast as a leading attractant. Owens et al [93] determined that crop destruction is not a reliable reduction method in 1st generation adult picture-winged flies' emergence from ears at post-harvest.…”

Section: Pictured Wing Fliesmentioning

confidence: 99%

Sweet Corn Research around the World 2015–2020

2021

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Modern sweet corn is distinguished from other vegetable corns by the presence of one or more recessive alleles within the maize endosperm starch synthesis pathway. This results in reduced starch content and increased sugar concentration when consumed fresh. Fresh sweet corn originated in the USA and has since been introduced in countries around the World with increasing popularity as a favored vegetable choice. Several reviews have been published recently on endosperm genetics, breeding, and physiology that focus on the basic biology and uses in the US. However, new questions concerning sustainability, environmental care, and climate change, along with the introduction of sweet corn in other countries have produced a variety of new uses and research activities. This review is a summary of the sweet corn research published during the five years preceding 2021.

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Section: Pictured Wing Fliesmentioning

confidence: 99%

Sweet Corn Research around the World 2015–2020

2021

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“…In this work, the authors demonstrated the feasibility of monitoring adult insects using McPhail-type traps containing food attractants, especially the hydrolyzed maize protein, Bio Anastrepha®. Such a procedure has been used to monitor additional species (Lasa et al 2015, Owens et al 2017. As the genus Euxesta has similarities with insects belonging to other genera, especially those that encompass true fruit flies, the results demonstrated by Cruz et al (2011) and in this work suggest the possibility of using this technology in sweet corn production systems, although further studies are required.…”

Section: Discussionmentioning

confidence: 77%

Management of Euxesta spp. in Sweet Corn with McPhail Traps

Lopes

Cruz

2019

Neotrop Entomol

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Pests attacking the ear of sweet corn, such as Helicoverpa and Euxesta species, cause economic losses for the producer and the processing industry. Feeding on the style-stigmata preventing fertilization and on the developing grain and the association with pathogens are the main causes of product depreciation. The traditional control such as spraying with chemicals is not effective, even with several applications directed to the corn ear. Bacillus thuringiensis (Bt) corn also does not reach the fly. McPhail traps that have been used to monitor the pest can be a control strategy. This work evaluated the efficiency of food attractants placed inside McPhail traps to remove adult insects, in order to reduce ear damage. Twelve McPhail-type traps were installed in a randomized complete block design containing Bio Anastrepha® alone or combined with different doses of insecticide. Every 10 days, all the captured insects were counted and separated by species and sex. Only Euxesta eluta and Euxesta mazorca were found. The occurrence of insects was greater in the period between silk emergence and grain filling. The number of females was higher, probably due to the need to feed before oviposition. The number of E. mazorca females caught in the treatment containing only Bio Anastrepha® was higher compared with that of others. The mean ear damage was very low, and there was no interaction between the production parameters and the distance between the trap and the harvested plant. In short, the use of McPhail trap containing food attractants may be a viable alternative to control corn silk flies.

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“…cruz et al (2011b) reported that adults from Euxesta have been found in the corn crop since the early stages, with a significant increase during the reproductive stages R1 and R2. The attraction of adults from Euxesta to ears attacked by other pests can be related to the attractiveness of this fly by volatile semiochemicals (Owens et al 2017).…”

Section: Resultsmentioning

confidence: 99%

Spatial and temporal distribution of Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae) and Euxesta spp. (Diptera: Otitidae) in the corn crop

et al. 2021

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The aim of this study was to verify the pattern and the spatial and temporal behavior of the corn earworm and corn-silk fly in the corn crop. Hybrid corn was planted without chemical insect control in one hectare, this area was divided into 100 plots of 100 m². For the occurrence of Euxesta spp. all parts of the plants were visually analyzed, whereas for Helicoverpa zea (Boddie) 10 ears were removed at random from each plot, totaling 1,000 ears per sample. Population fluctuation was related to the phenological stages of corn. For spatial behavior, the dispersion indices, frequency distribution models and geostatistics (Krigagem) were analyzed. The corn earworm (small and large) and corn-silk fly showed aggregate pattern and spatial behavior. The reach of caterpillars <1 cm had an area of influence greater than caterpillars > 1 cm, with spatial dependence being considered moderate. The corn-silk fly had a maximum area of influence of 1.33 ha with moderate and weak spatial dependence. The maps demonstrated that these insects occur dispersed throughout the corn area, but with aggregations influenced by the adjacent areas and edges of the crop. The largest occurrence of corn earworms was at the R3 stage. It was also found that the corn-silk fly followed the occurrence of the corn earworm. It is concluded that the studied pests have an aggregate spatial tendency in the corn crop and with the influence of adjacent areas, in addition to presenting related population peaks in the reproductive period of the corn crop.

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Evaluation of Lures for Monitoring Silk Flies (Diptera: Ulidiidae) in Sweet Corn

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 8 publications

References 25 publications

Sweet Corn Research around the World 2015–2020

Sweet Corn Research around the World 2015–2020

Management of Euxesta spp. in Sweet Corn with McPhail Traps

Spatial and temporal distribution of Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae) and Euxesta spp. (Diptera: Otitidae) in the corn crop

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