Biologia e tabela de vida de fertilidade de Spodoptera frugiperda (J.E. Smith) em linhagens de milho

Rosa, A.P.A. da; Trecha, C. O.; Alves, Antônio Carlos; Garcia, Leandra Do Couto; Gonçalves, Vanessa Pinto

doi:10.1590/s1808-16572012000100006

Cited by 7 publications

(7 citation statements)

References 15 publications

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“…The average generation time (T) found in this study was similar to those obtained by Rosa et al (2012) with S. frugiperda on five maize lines (between 21.3 and 45.7 d). The values of the net reproduction rate (R 0 ), the intrinsic increase rate (r m ) and the finite increase rate (λ) differed from those obtained by Omoto et al (2016) in non-Bt maize, who measured 272.0, 0.152, and 1.165, respectively.…”

Section: Discussionsupporting

confidence: 87%

Artificial Corn-Based Diet for Rearing Spodoptera frugiperda (Lepidoptera: Noctuidae)

Pinto

Torres

Truzi

et al. 2019

Journal of Insect Science

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Spodoptera frugiperda (J.E. Smith, 1797) is considered a key pest of maize. However, the artificial diets used for rearing this insect in the laboratory do not contain corn. The aim of this study was to evaluate the biology and to compare the food consumption by S. frugiperda, as well as the food preference of the larvae in the standard diet and the corn-based diet. Three of the following diets were evaluated: a standard diet based on beans (D1), a diet with corn flour as substitute for wheat germ (D2), and a diet replacing beans with green corn (D3). The biological parameters evaluated were period and survival of larvae and pupae; weight of male and female pupae; sex ratio; fecundity; egg incubation period; and adult longevity. The nutritional indices were determined and the biological data obtained were used to determine the parameters of fertility life tables; we also performed a multiple-choice test (feeding test). Larval development of S. frugiperda occurred in all three diets, although without oviposition by females developed from larval fed on D2. There was no difference among the diets in relation to the fertility life table parameters. The diet D2 resulted in better ingestion, digestion, assimilation, and conversion of food, but was associated with a metabolic cost to assimilate the food. Using a multiple-choice test, we observed that the larvae preferred diet D2. Based on our results, the most adequate diets for rearing S. frugiperda in the laboratory are D1 and D3.

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Section: Discussionsupporting

confidence: 87%

Artificial Corn-Based Diet for Rearing Spodoptera frugiperda (Lepidoptera: Noctuidae)

Pinto

Torres

Truzi

et al. 2019

Journal of Insect Science

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“…The incubation period of S. frugiperda eggs fed on sorghum cultivars BRS 506 and BRS 511 during the larval phase lasted three days, with no significant differences (Table 1). Results corroborated those by Rosa et al (2012) who reported rates between 2.8 and 3.3 days when they studied the biological aspects of S. frugiperda fed on corn strains. There was no time duration for insects fed on cultivar BRS 509 since the adults failed to lay any eggs.…”

Section: Resultssupporting

confidence: 90%

Biology and Nutritional Indexes of Spodoptera frugiperda (Lepidoptera: Noctuidae) in Saccharine Sorghum

Barcelos¹,

Fernandes²,

Lopes³

et al. 2019

JAS

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Saccharine sorghum has been analyzed as a supplementary prime matter for ethanol production, especially during the sugarcane off-season period. However, it has proven to be highly susceptible to insect attacks during the cultivation cycle. The fall armyworm should be emphasized due to its voracity and high damage capacity enhanced by feeding-caused decrease in photosynthetic area. Current analysis studies the biology and determines the nutritional indexes of Spodoptera frugiperda in saccharine sorghum. Cultivars of saccharine sorghum BRS 506, BRS 509 and BRS 511were evaluated. Duration and survival of the egg, caterpillar, pre-pupal and pupal phases were determined, coupled to weight of pupae and caterpillar, life span, fecundity and pre-egg laying period. Although S. frugiperda completed its life cycle on cultivars BRS 506 and BRS 511, egg-laying and egg feasibility rates were low, whereas insects did not lay eggs on cultivar BRS 509. There was no significant difference in feeding intake by S. frugiperda among these three sorghum cultivars. Results suggest that saccharine sorghum is not a suitable host for S. frugiperda. Biological data reveal that the three saccharine sorghum cultivars are recommended for the grain production system since the number of specimens of the next generation is low or null.

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“…Velez and Sifuentes (1967) performed a study with corn leaves, the preferred food of the insect and concluded that the incubation period of S. frugiperda was 4 days. In other studies, feeding two populations of S. frugiperda with Pioneer 30F33 corn, the authors observed an incubation period of 2.4 and 2.7 days, which reached 3.3 and 3.2 days with the strains M89601 and M89420, respectively (BUSATO et al, 2005;ROSA et al, 2012).…”

Section: Resultsmentioning

confidence: 79%

“…In this study, adult longevity was 6.7 (azevém) and 5 days (cornichão) ( Table 2). In studies with corn strains, Rosa et al (2012) found that the duration of the adult phase was 14 days for the M89601 lineage and 21 days for the M89287 lineage. This may be related to tannin present in the food ingested during the larval stage, leading to increased longevity of adults (LUGINBILL, 1928).…”

Section: Resultsmentioning

confidence: 99%

Development of Helicoverpa armigera (Hübner, 1805) and Spodoptera frugiperda (SMITH, 1797) in winter forages

et al. 2020

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Helicoverpa armigera (Hübner, 1805) and Spodoptera frugiperda (Smith, 1797) are polyphagous pests of great agricultural importance in subtropical and temperate climate regions. The usual management of production areas in the southern region of Brazil occurs after the harvesting of summer crops, and the areas are sown with pasture. Thus, forages recommended for grazing are azevém (Lolium multiflorum Lam.) and cornichão (Lotus corniculatus L.) due to their nutritional benefits, good palatability, regrowth, and hardiness. Considering the high degree of polyphagia of H. armigera and S. frugiperda, and the impact of maintaining continuous feeding areas (green bridges) in the management of these species, this work aimed to evaluate the development of H. armigera and S. frugiperda fed leaves of azevém and cornichão under laboratory conditions. The insects were collected in the city of Capão do Leão/RS in corn and soybean plantations. For each forage species, 130 newly hatched caterpillars were each placed in autoclaved glass tubes, with one-third of the tube length containing forage. The tubes were capped with waterproof cotton and placed in a climate-controlled room at 25 ± 1°C, 70 ± 10% relative humidity, and a 12-h photophase. The food was replenished daily until the caterpillars entered the pupae stage. The pupae were sexed and weighed, and the newly emerged adults were placed in pairs in PVC cages, lined with white A4 sulfite paper. The papers used as a laying substrate were removed and changed daily, and eggs were counted. The number of instars was determined by the linearized Dyar rule model. The complete randomization design was employed for the variables biological cycle length and viability of egg, caterpillar, pre-pupa, pupa, adult, and pre-oviposition phases and weight of caterpillars on the 14th day and pupae after 24 h. Based on the results obtained, a fertility life table was prepared. H. armigera did not complete the cycle, with only three instars and a duration of 22.1 and 24.6 days in azevém and cornichão, respectively. When evaluated in S. frugiperda caterpillars, development in forage species was observed, with five and six instars and duration of 51.7 and 45.1 days in azevém and cornichão, respectively. The azevém was distinguished by interference in the development cycle of the species, reducing the effect of the green bridge. In addition, surviving insects were susceptible to the effects of the agroecosystem due to the low-quality food source.

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Biologia e tabela de vida de fertilidade de Spodoptera frugiperda (J.E. Smith) em linhagens de milho

Cited by 7 publications

References 15 publications

Artificial Corn-Based Diet for Rearing Spodoptera frugiperda (Lepidoptera: Noctuidae)

Artificial Corn-Based Diet for Rearing Spodoptera frugiperda (Lepidoptera: Noctuidae)

Biology and Nutritional Indexes of Spodoptera frugiperda (Lepidoptera: Noctuidae) in Saccharine Sorghum

Development of Helicoverpa armigera (Hübner, 1805) and Spodoptera frugiperda (SMITH, 1797) in winter forages

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