Occurrence of Entomopathogens of Spodoptera frugiperda (Lepidoptera: Noctuidae) in the Mexican States of Michoacán, Colima, Jalisco and Tamaulipas

Lezama-Gutiérrez, Roberto; Hamm, John J.; Molina-Ochoa, Jaime; López-Edwards, Marilú; Pescador-Rubio, Alfonso; González-Ramírez, Martín; Styer, Eloise L.

doi:10.2307/3496658

Cited by 37 publications

(27 citation statements)

References 21 publications

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“…Surveys carried out during the heavy rain season, that is, end April-May, yielded more EPN compared to the surveys carried out at other times. The environmental conditions, particularly soil moisture, may have favoured the recovery of EPN, as also described from maize and sorghum growing areas in Mexico by Lezama-Gutiérrez et al (2001).…”

Section: Discussionmentioning

confidence: 79%

New entomopathogenic nematodes from semi-natural and small-holder farming habitats of Rwanda

Yan¹,

Waweru

Qiu³

et al. 2016

Biocontrol Science and Technology

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Five field surveys for indigenous entomopathogenic nematodes (EPNs) were conducted in 22 semi-natural and 17 small-holder farming habitats across 16 districts of different altitudes in the northern, eastern, southern and Kigali city provinces of Rwanda. In 2014, 216 mixed soil samples were collected and subsamples thereof baited with Galleria mellonella or Tenebrio molitor larvae. Five samples from five locations and habitats were positive for nematodes (2.8%). Nine nematode species/strains were isolated and five successfully maintained. DNA sequence comparisons and morphological examinations revealed Steinernema carpocapsae, Heterorhabditis bacteriophora, as well as two steinernematids and one heterorhabditid with no species designation. The isolates (strains) were named Steinernema sp. RW14-M-C2a-3, Steinernema sp. RW14-M-C2b-1, Steinernema carpocapsae RW14-G-R3a-2, H. bacteriophora RW14-N-C4a and Heterorhabditis sp. RW14-K-Ca. These are the first records of naturally occurring EPNs in Rwanda. It is also the first record of S. carpocapsae from Africa. Finding H. bacteriophora from tropical rather than temperate Africa was surprising. The found nematodes will serve as the basis for efficacy screening, and for mass production in a biocontrol agent factory at Rubona Research Centre of the Rwanda Agriculture Board with the ultimate aim of delivering effective, safe and environmentally benign pest control for soil-inhabiting pests. ARTICLE HISTORY

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Section: Discussionmentioning

confidence: 79%

New entomopathogenic nematodes from semi-natural and small-holder farming habitats of Rwanda

Yan¹,

Waweru

Qiu³

et al. 2016

Biocontrol Science and Technology

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“…This latter data however included orchards, vineyards, cereal and horticultural crops. Low rates of entomopathogenic nematode recovery have been reported in different regions around the world, and range from 2% to 30% (Mason et al, 1996;Midituri et al, 1997;Constant et al, 1998;Tangchitsomkid and Sontirat, 1998;Stock et al, 1999;Griffin et al, 2000;Rosa et al, 2000;Lezama-Gutierrez et al, 2001;Hazir et al, 2003;Canhilal et al, 2006). However, in a nearby region of Southern France, Emelianoff et al (2008) isolated EPNs in 60% of soils but did not find EPNs in organic agricultural fields.…”

Section: Discussionmentioning

confidence: 92%

Ecological characterization of entomopathogenic nematodes isolated in stone fruit orchard soils of Mediterranean areas

Morton

Pino

2009

Journal of Invertebrate Pathology

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“…This pathogen has also been shown to infect corn earworm (Pekrul and Grula 1979) and fall armyworm (Lezama-Gutierrez et al 2001). Although commercial formulations of B. bassiana are available, they have generally not been used by farmers for management of sweet corn pests because immediate efÞcacy has been shown to be less than with B. thuringiensis products (Lewis and Bing 1991).…”

mentioning

confidence: 99%

Evaluation of Oils and Microbial Pathogens for Control of Lepidopteran Pests of Sweet Corn in New England

Hazzard

Schultz

Groden

et al. 2003

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Vegetable and mineral oil, Beauveria bassiana (Balsamo) and Bacillus thuringiensis subsp. kurstaki Berliner were evaluated for control of Ostrinia nubilalis (Hübner) (Lepidoptera: Pyralidae), Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae) and Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) in sweet corn (Zea mays L.). Field experiments in Maine and Massachusetts during 1993 and 1994 evaluated oils and pathogens singly or in combinations, using a single application directly to the top of the silk channel, immediately after pollination. Mineral oil alone provided equal (1993) or better (1994) control compared with corn oil. In both years, mineral or corn oil plus B. thuringiensis resulted in 93-98% marketable ears, compared with 48-52% marketable ears in untreated plots. In three factorial experiments with B. bassiana, B. thuringiensis and corn oil, B. bassiana at 5 x 10(7) conidia per ear provided little or no control while B. thuringiensis and corn oil provided significant though not always consistent control of all three species. The combination of B. thuringiensis and corn oil provided the largest and most consistent reduction in numbers of larvae and feeding damage to ears.

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Occurrence of Entomopathogens of Spodoptera frugiperda (Lepidoptera: Noctuidae) in the Mexican States of Michoacán, Colima, Jalisco and Tamaulipas

Cited by 37 publications

References 21 publications

New entomopathogenic nematodes from semi-natural and small-holder farming habitats of Rwanda

New entomopathogenic nematodes from semi-natural and small-holder farming habitats of Rwanda

Ecological characterization of entomopathogenic nematodes isolated in stone fruit orchard soils of Mediterranean areas

Evaluation of Oils and Microbial Pathogens for Control of Lepidopteran Pests of Sweet Corn in New England

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