The influence of agricultural occupation and climate on the spatial distribution of Plusiinae (Lepidoptera: Noctuidae) on a latitudinal gradient in Brazil

Santos, Sabrina Raisa dos; Specht, Alexandre; Carneiro, Eduardo; Casagrande, Mirna Martins

doi:10.1590/1806-9665-rbent-2020-0103

Cited by 4 publications

(3 citation statements)

References 34 publications

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“…However, from the early 2000s, C. includens emerged as the key pest, which was likely influenced by the expansion of the soybean crop in Brazil 50 . In our results, R. nu and C. aporema were restricted to soybean fields in the Mid-South of Brazil, probably due to their better adaptation to subtropical and temperate climate of this region 25 – 27 , whereas Helicoverpa spp. was present in soybean fields in the Central regions of Brazil.…”

Section: Discussionmentioning

confidence: 46%

“…In addition to protecting against the insect species already mentioned, MON 87701 × MON 89788 soybean also offers protection against larval injury caused by Rachiplusia nu (Guenée, 1852) (Lepidoptera: Noctuidae) and Crocidosema aporema (Walsingham, 1914) (Lepidoptera: Tortricidae) 1 . Rachiplusia nu and C. aporema are historically considered key soy lepidopteran pests in Argentina 22 – 24 ; in Brazil, however, the occurrence of these species in soybean fields has historically been restricted to reasonably low levels in the mid-south region of the country 25 – 27 . Cases of unexpected injury to the MON 87701 × MON 89788 soybean caused by “loopers” were identified during the 2020/21 crop season.…”

Section: Introductionmentioning

confidence: 99%

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Resistance status of lepidopteran soybean pests following large-scale use of MON 87701 × MON 89788 soybean in Brazil

Horikoshi¹,

Bernardi

Godoy

et al. 2021

Sci Rep

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Widespread adoption of MON 87701 × MON 89788 soybean, expressing Cry1Ac Bt protein and glyphosate tolerance, has been observed in Brazil. A proactive program was implemented to phenotypically and genotypically monitor Cry1Ac resistance in Chrysodeixis includens (Walker). Recent cases of unexpected injury in MON 87701 × MON 89788 soybean were investigated and a large-scale sampling of larvae on commercial soybean fields was performed to assess the efficacy of this technology and the distribution of lepidopteran pests in Brazil. No significant shift in C. includens susceptibility to Cry1Ac was observed eight years after commercial introduction of this technology in Brazil. F2 screen results confirmed that the frequency of Cry1Ac resistance alleles remains low and stable in C. includens. Unexpected injury caused by Rachiplusia nu (Guenée) and Crocidosema aporema (Walsingham) in MON 87701 × MON 89788 soybean was detected during the 2020/21 season, and studies confirmed a genetically based alteration in their susceptibility to Cry1Ac. MON 87701 × MON 89788 soybean remains effective against Anticarsia gemmatalis (Hübner), C. includens, Chloridea virescents (Fabricius) and Helicoverpa armigera (Hübner) in Brazil. However, there is evidence of field-evolved resistance to MON 87701 × MON 89788 soybean by the secondary soybean pests R. nu and C. aporema.

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Section: Discussionmentioning

confidence: 46%

Section: Introductionmentioning

confidence: 99%

Resistance status of lepidopteran soybean pests following large-scale use of MON 87701 × MON 89788 soybean in Brazil

Horikoshi¹,

Bernardi

Godoy

et al. 2021

Sci Rep

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“…The population dynamics of C. includens is directly affected by factors such as temperature, precipitation, and the latitudinal gradient (Santos et al, 2017(Santos et al, , 2021. Furthermore, it has been demonstrated that this species inhabits both natural and agricultural landscapes at similar latitudinal sites, probably due to its wide polyphagy spectrum (Santos et al, 2021). Therefore, the presence of glyphosate-resistant hosts in the field may play a crucial role in the survival of this insect species during the off-season.…”

mentioning

confidence: 99%

The role of glyphosate-resistant weeds and starvation on biological, reproductive, and preference parameters of Chrysodeixis includens (Lepidoptera: Noctuidae)

Leite

Assis²,

Mendes³

et al. 2022

Bull. Entomol. Res.

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Glyphosate-resistant weeds are difficult to manage and can serve as hosts for pests that threaten cultivated crops. Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) is one of the main polyphagous pests of soybean in Brazil that can benefit from weeds' presence during season and off-season. Despite its pest status, little is known about C. includens survival and development on alternative hosts, including those resistant to glyphosate. Therefore, we assessed the biology, reproduction, preference, and survival at different feeding periods of C. includens on seven glyphosate-resistant weeds (Sumatran fleabane, Italian ryegrass, sourgrass, goosegrass, smooth pigweed, wild poinsettia, hairy beggarticks) commonly found in Brazilian agroecosystems, under laboratory conditions. Our results showed that C. includens survival and reproduction were similar on soybean and wild poinsettia. Survival and reproduction were lower on smooth pigweed and hairy beggarticks. Also, these plants prolonged the larval stage. Larvae did not pupate when fed on sourgrass, goosegrass, Italian ryegrass, and Sumatran fleabane. However, on Sumatran fleabane their biomass was higher. The mean generation time was lower on wild poinsettia. This weed was preferred to soybean. An antifeeding factor was observed on Sumatran fleabane. Larvae fed for 11 days on soybean, wild poinsettia and smooth pigweed developed into pupae. In agricultural systems, farmers must pay attention to the management of these weeds, especially wild poinsettia, smooth pigweed, and hairy beggarticks, to interrupt the cycle of this pest, since these plants can serve as main sources of infestation for the soybean crop.

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Natural history and morphology of immature stages of Tolype medialis (Jones, 1912) (Lepidoptera: Lasiocampidae: Macromphaliinae)

et al. 2023

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The influence of agricultural occupation and climate on the spatial distribution of Plusiinae (Lepidoptera: Noctuidae) on a latitudinal gradient in Brazil

Cited by 4 publications

References 34 publications

Resistance status of lepidopteran soybean pests following large-scale use of MON 87701 × MON 89788 soybean in Brazil

Resistance status of lepidopteran soybean pests following large-scale use of MON 87701 × MON 89788 soybean in Brazil

The role of glyphosate-resistant weeds and starvation on biological, reproductive, and preference parameters of Chrysodeixis includens (Lepidoptera: Noctuidae)

Natural history and morphology of immature stages of Tolype medialis (Jones, 1912) (Lepidoptera: Lasiocampidae: Macromphaliinae)

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