Priscila Stinguel, Dirceu Pratissoli, Regiane Cristina de Oliveira, Luciano Menini, Ana Beatriz Mamedes Piffer, Ana Carolina Lopes Francisco de Oliveira
{"title":"Characterization, Formulation, and Toxicity of Plant Oils on Duponchelia fovealis Caterpillars Zeller 1847 (Lepidoptera: Crambidae).","authors":"Priscila Stinguel, Dirceu Pratissoli, Regiane Cristina de Oliveira, Luciano Menini, Ana Beatriz Mamedes Piffer, Ana Carolina Lopes Francisco de Oliveira","doi":"10.1007/s13744-024-01229-3","DOIUrl":"10.1007/s13744-024-01229-3","url":null,"abstract":"<p><p>This study aimed to determine the chemical composition of ginger Zingiber officinale Roscoe (Zingiberaceae) and soursop Annona muricata Linn (Annonaceae) oils, formulate stable emulsions of these oils separately, as well as neem oil Azadirachta indica A. Juss (Meliaceae), and evaluate the insecticidal activity of these emulsions against Duponchelia fovealis Zeller, 1847 (Lepidoptera: Crambidae). Each stable emulsion contained an oil phase containing ginger, soursop, or neem oil, a fruit polyalcohol-based emulsifier, ethanol, or water. The insecticidal effect of the different oils and formulated emulsions was tested on the first- and second-instar caterpillars of D. fovealis. The majority of the compounds of the ginger essential oil were α-zingiberene (29%), geranial (14.9%), and α-farnesene (12.9%), and soursop oil had a higher percentage of oleic acid (43.73%), linoleic acid (29.51%), and palmitic acid (20.50%). The CL<sub>50</sub> values of the soursop, neem, and ginger oils were 0.474, 0.473, and 0.602% for first-instar caterpillars and 2.25, 1.02, and 0.624% for second-instar caterpillars of D. fovealis. The formulated emulsions of ginger, soursop, and neem oils remained stable and exhibited toxicity in the first and second instars of D. fovealis development.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"54 1","pages":"17"},"PeriodicalIF":1.4,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142829403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dahise Brilinger, Mariana Fiedler, Cristiano João Arioli, Simone Silmara Werner, Bregje Wertheim, Mari Inês Carissimi Boff
{"title":"Exploring Matrine and Oxymatrine as Potential Bioinsecticide to Control Drosophila suzukii (Diptera: Drosophilidae).","authors":"Dahise Brilinger, Mariana Fiedler, Cristiano João Arioli, Simone Silmara Werner, Bregje Wertheim, Mari Inês Carissimi Boff","doi":"10.1007/s13744-024-01224-8","DOIUrl":"https://doi.org/10.1007/s13744-024-01224-8","url":null,"abstract":"<p><p>A bottleneck in sustainable fruit production is the replacement of chemical products with natural compounds. Matrine and oxymatrine, derived from a Chinese medicinal herb, have exhibited potential for controlling agricultural pests. However, there is no information regarding their effectiveness in managing dipterans. Thus, we carried out experiments to evaluate the effect of the botanical compounds matrine and oxymatrine on Drosophila suzukii (Matsumura) adults under laboratory conditions. First, we tested four doses of the commercial product matrine, with distilled water as a control treatment. Each treatment was offered as a droplet, to five D. suzukii couples in screened cages. Adult mortality was evaluated at intervals of 12, 24, 36, 48, 60, and 72 h post-exposure. All doses tested of the commercial matrine-based product caused up to 58% of mortality in D. suzukii adults. Second, the consumption of pure extract of oxymatrine was evaluated using a CAFE assay. Three D. suzukii females were exposed to oxymatrine concentrations of 0.05, 1.0, 2.5, 5.0, and 7.0% in a 20% sugar solution for 24 h. Afterwards, the flies were deprived of food for 40 h, and mortality was evaluated. The pure extract of oxymatrine induced mortality in D. suzukii females only at doses of 2.5, 5.0, and 7.0%. These botanical compounds demonstrate the potential to be used to control D. suzukii adults and can be explored as one tool of the Integrated Management Program.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"54 1","pages":"14"},"PeriodicalIF":1.4,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142818504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Thiara A Bernardes, Rafaella Maciel, Pedro Henrique Oliveira Ribeiro, Luiz A Lira, Ananda Souza Lima, Marina R Frizzas
{"title":"New Behavior Records of the Oxysternon palemo Castelnau, 1840 (Coleoptera: Scarabaeidae: Scarabaeinae) in Cerrado.","authors":"Thiara A Bernardes, Rafaella Maciel, Pedro Henrique Oliveira Ribeiro, Luiz A Lira, Ananda Souza Lima, Marina R Frizzas","doi":"10.1007/s13744-024-01222-w","DOIUrl":"https://doi.org/10.1007/s13744-024-01222-w","url":null,"abstract":"<p><p>The present study reports new behavioral records for Oxysternon palemo Castelnau, 1840 in Cerrado. According to its nesting habits and resource allocation, this species of dung beetle is traditionally classified as coprophagous and paracoprid, transporting portions of dung through tunnels excavated below the resource. We observed a male individual moving a pequi seed (Caryocar brasiliensis Cambess.) with \"head-butting,\" acting as a secondary seed disperser. At another moment, we recorded necrophagous habits for the species when male individuals were observed moving pieces of domestic pig carcasses (Sus scrofa L., 1758), also with \"head-butting.\" After, we recorded a female O. palemo, accompanied by a male individual, butting a dung mass and burying this resource several meters away from the original source. The behavior of pushing the resource over long distances is typical of telecoprid dung beetles that form dung balls and roll them using hind legs away from the resource source, unlike what is expected for O. palemo. Our hypothesis is that the observed behaviors have developed from competition for resources. Furthermore, the behaviors exhibited by O. palemo contribute to the provision of essential ecosystem services. The ecosystem services include the removal and degradation of decomposing organic matter, as well as secondary dispersal of seeds, thus supporting the maintenance and conservation of plant species.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"54 1","pages":"15"},"PeriodicalIF":1.4,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142818508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fernanda de Aguiar Coelho, Priscila Kelly Barroso Farnezi, Mônica Carvalho de Sá, Julia Viotti, Vinícius Henrique Moreira, Adriene Caldeira Batista, Débora Sampaio Mendes, Tamiris Alves de Araújo, Sebastião Lourenço de Assis Júnior, Marcus Alvarenga Soares, Marcelo Coutinho Picanço, Ricardo Siqueira da Silva
{"title":"Risk Analysis for Invasion of the Forest Pest Paropsisterna bimaculata Present in Tasmania to Areas of the World.","authors":"Fernanda de Aguiar Coelho, Priscila Kelly Barroso Farnezi, Mônica Carvalho de Sá, Julia Viotti, Vinícius Henrique Moreira, Adriene Caldeira Batista, Débora Sampaio Mendes, Tamiris Alves de Araújo, Sebastião Lourenço de Assis Júnior, Marcus Alvarenga Soares, Marcelo Coutinho Picanço, Ricardo Siqueira da Silva","doi":"10.1007/s13744-024-01228-4","DOIUrl":"https://doi.org/10.1007/s13744-024-01228-4","url":null,"abstract":"<p><p>Paropsisterna bimaculata is an essential pest of eucalyptus species. The insect is consistently associated with severe defoliation in large crop plantations in Tasmania. Its attack causes a reduction in the volume of wood produced and, in severe cases, the death of trees. Eucalyptus is the most important species in the global forestry sector and is economically significant in many countries. The extensive insect fauna associated with these species demonstrates the need for increasingly effective control and prevention methods, especially for those regulated as quarantine pests. This study aimed to develop an ecoclimatic index model for P. bimaculata using the CLIMEX software, highlighting the potential distribution of P. bimaculata in the world and the areas at risk of introducing the insect into planted forest crops. The potential distribution of P. bimaculata showed high suitability in regions of Asia, Africa, Europe, Oceania, and America, with greater probability in countries in Europe and South America. The results are mainly associated with regions with temperate climates. Furthermore, an area in Brazil's South and Southeast regions also showed an adequate distribution for the species. The model's results presented here can assist in developing strategies to prevent the introduction and establishment of P. bimaculata in eucalyptus crops worldwide.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"54 1","pages":"10"},"PeriodicalIF":1.4,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142818572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nguyen Minh Chi, Nong Phuong Nhung, Vu Van Loi, Pham Thi Thu Thuy, Bernard Dell
{"title":"Bacillus bombysepticus, an Entomopathogen in Yellow-Spined Bamboo Locust with Biocontrol Potential.","authors":"Nguyen Minh Chi, Nong Phuong Nhung, Vu Van Loi, Pham Thi Thu Thuy, Bernard Dell","doi":"10.1007/s13744-024-01223-9","DOIUrl":"https://doi.org/10.1007/s13744-024-01223-9","url":null,"abstract":"<p><p>Ceracris kiangsu (Tsai) (Orthoptera: Acrididae) is a severe pest of the bamboo Dendrocalamus barbatus Hsuch & D.Z. Li that is widely grown in plantations in Vietnam. A biocontrol option to manage this pest is a priority for the forest sector. This study evaluates whether there are potential biocontrol candidates within the C. kiangsu population. Bacteria were isolated from C. kiangsu nymphs that were parasitized in the field. In a nursery experiment, three Bacillus bombysepticus Wang isolates (FPRC17, FPRC23 and FPRC30) caused 63-68% mortality of C. kiangsu nymphs 9 days after spraying, and the results were similar to applying a commercial Bacillus thuringiensis product. In a field trial, feeding damage from a C. kiangsu infestation was reduced by over 70% at 15 days after spraying these isolates. This finding reveals the potential for the development of a natural biopesticide for bamboo locust management in Vietnam.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"54 1","pages":"12"},"PeriodicalIF":1.4,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142818799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bruna L B Façanha, Rony P S Almeida, Keison Cavalcante, Taires Peniche, Telma A S Lobato, Camila M C V Araújo, Raimundo N P Souto
{"title":"Colonization of Blowflies (Diptera: Calliphoridae) and Association Time Between Adults and Immatures in Pig Carcass Decomposition: One Day to Change.","authors":"Bruna L B Façanha, Rony P S Almeida, Keison Cavalcante, Taires Peniche, Telma A S Lobato, Camila M C V Araújo, Raimundo N P Souto","doi":"10.1007/s13744-024-01231-9","DOIUrl":"https://doi.org/10.1007/s13744-024-01231-9","url":null,"abstract":"<p><p>Blowflies are often the first to colonize a cadaver, making them valuable forensic indicators for estimating the post-mortem interval (PMI). However, understanding the decomposition process by blowflies in practice presents challenges due to the direct influence of adults and larvae on the process. Environmental factors can either hinder or stimulate colonization by different species, leading to variability across different settings. In this study, we aimed to investigate the variation in the community of adult and immature stages of Calliphoridae blowflies during pig carcass decomposition in an island area of the Amazon rainforest. We identified changes in abundance, richness, and species composition separately for adults and larvae and measured the congruence between larval and adult communities. Our findings revealed that the peak abundance of adults preceded the peak abundance of larvae during carcass decomposition. Eleven species were collected within the first 4 days of decomposition, of which only seven colonized the carcass. Species composition differed between life stages and decomposition phases, with larvae associated with the skeletonization phase and adults with the colliquative phase. The species composition of adults collected from the decomposing carcass corresponded to that of larvae collected 1 day later. This is the first study conducted in an Amazonian island environment in the extreme north of Brazil to document the cadaveric fauna and analyze the congruence between adult and larval communities of blowflies. These insights contribute to forensic entomology understanding and assist forensic professionals, particularly in tropical regions with high rates of unsolved homicides like Brazil.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"54 1","pages":"13"},"PeriodicalIF":1.4,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142818407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vinicius José Fernandes, Elen de Lima Aguiar-Menezes, José Guilherme Marinho Guerra, Cláudia Barbieri Ferreira Mendonça, Vania Gonçalves-Esteves, Janaina Ribeiro Costa-Rouws, Thiago Sampaio de Souza
{"title":"Pollens of Fabaceae and Poaceae Alone or Combined with Honey Solution? Suitable Diet for Adults of Chrysoperla externa (Hagen) (Neuroptera: Chrysopidae).","authors":"Vinicius José Fernandes, Elen de Lima Aguiar-Menezes, José Guilherme Marinho Guerra, Cláudia Barbieri Ferreira Mendonça, Vania Gonçalves-Esteves, Janaina Ribeiro Costa-Rouws, Thiago Sampaio de Souza","doi":"10.1007/s13744-024-01216-8","DOIUrl":"https://doi.org/10.1007/s13744-024-01216-8","url":null,"abstract":"<p><p>The main source of proteins for adult Chrysoperla externa (Hagen) is pollen, the content of which varies among species and may have different effects on the adult biology. In the laboratory, we evaluated the suitability of pollens from Canavalia ensiformis (JB), Crotalaria juncea (SH) (both Fabaceae), Pennisetum glaucum (MI), Sorghum bicolor (SO), and Zea mays (CO) (all Poaceae), alone or as mixtures of pollen from one species of each family, for the performance of adult C. externa; these diets were compared to brewer's yeast + honey (standard diet), 50% honey solution and water alone. Excluding water, the diets were supplemented with an extra honey solution (EHS). The protein content was used as a measure of diet quality, although the carbon and mineral contents were also evaluated. The diets combined with EHS significantly improved adult longevity. All the pollen diets promoted egg production. The CO-alone, SO-alone, JB-alone, SH-alone, SO + JB, CO + SH, MI + SH and SO + SH mixtures resulted in reproduction rates similar to those observed with the standard diet, indicating their suitability for C. externa. In contrast, the effects of MI-alone, MI + JB and CO + JB on reproduction were significantly worse than those of the standard diet. In terms of nutritional value, SH was the pollen enriched in protein, CO, MI and SO were protein-poor pollens, and the JB and dipollen mixtures presented intermediate levels. In conclusion, in contrast to our expectations, a mixture of Fabaceae and Poaceae pollens generally is not nutritionally superior to each pollen alone for improving the performance of adult C. externa.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"54 1","pages":"8"},"PeriodicalIF":1.4,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142818570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bianca Corrêa Capizzani, Hugo Leoncini Rainho, Sílvia de Oliveira Miranda, Valquíria Dias de Souza Rosa, Luiz Alberto Beijo, Isabel Ribeiro do Valle Teixeira, José Maurício Bento, Angel Roberto Barchuk
{"title":"Contrasting Responses to Ethenylbenzene (Styrene) and 2-Ethyl-1-hexanol Suggest their Role as Chemical Cues in Host Selection by the Seed Beetle Zabrotes subfasciatus (Coleoptera: Chrysomelidae: Bruchinae).","authors":"Bianca Corrêa Capizzani, Hugo Leoncini Rainho, Sílvia de Oliveira Miranda, Valquíria Dias de Souza Rosa, Luiz Alberto Beijo, Isabel Ribeiro do Valle Teixeira, José Maurício Bento, Angel Roberto Barchuk","doi":"10.1007/s13744-024-01225-7","DOIUrl":"https://doi.org/10.1007/s13744-024-01225-7","url":null,"abstract":"<p><p>Seed beetles spend most of their lives within the seeds of host plants belonging to the Fabaceae family. Evidence suggests the cues that mediate pre-oviposition behaviour in Zabrotes subfasciatus (Boheman) are volatile organic compounds (VOCs) emitted by the seeds and suggests differential abilities in environment sensing between sexes. Here, we tested whether VOCs from different legume species trigger different levels of attraction, whether females and males differ in their ability to respond to VOCs, and whether the seeds promoting different behaviours feature singular VOCs. Finally, we tested females' response to selected VOCs from legume seeds with different levels of attraction. Behavioural assays testing the beetles' response to four Fabaceae species allowing varied levels of fitness (Phaseolus vulgaris, Glycine max, Lens culinaris, and Cicer arietinum) and antenna removal assays confirmed volatiles emitted by the seeds act as chemical cues for females and showed the seeds of the tested legume species trigger different levels of attraction. GC-MS analysis revealed the seeds of two of the species at the extreme of the preference hierarchy feature singular VOCs profiles and abundance. One of the differentially expressed VOCs found in higher quantities in P. vulgaris (ethenylbenzene = styrene) and one in C. arietinum (2-ethyl-1-hexanol) mediate opposing behaviours in Z. subfasciatus females. These results suggest host choice in Z. subfasciatus relies upon at least a two-component kairomone-based system: styrene attracts females to P. vulgaris seeds and 2-ethyl-1-hexanol keeps them from choosing C. arietinum as a substrate for oviposition. The system has evolutionary and agricultural relevance because it may allow for \"niche\" specialisation in seed stores and natural environments and may help develop pest management strategies.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"54 1","pages":"9"},"PeriodicalIF":1.4,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142818474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anderson Bruno Anacleto de Andrade, César Gonçalves Dos Santos, Jakeline Maria Dos Santos, Elio Cesar Guzzo, Jeniffer Mclaine Duarte de Freitas, Johnnatan Duarte de Freitas, Henrique Fonseca Goulart, Antônio Euzébio Goulart Santana
{"title":"Sexual Dimorphism and Ultrastructure of Coraliomela brunnea (Thunberg, 1821) (Coleoptera: Chrysomelidae).","authors":"Anderson Bruno Anacleto de Andrade, César Gonçalves Dos Santos, Jakeline Maria Dos Santos, Elio Cesar Guzzo, Jeniffer Mclaine Duarte de Freitas, Johnnatan Duarte de Freitas, Henrique Fonseca Goulart, Antônio Euzébio Goulart Santana","doi":"10.1007/s13744-024-01232-8","DOIUrl":"https://doi.org/10.1007/s13744-024-01232-8","url":null,"abstract":"<p><p>This study analyzed the morphological characteristics of C. brunnea adults that allow for sexual differentiation. Sensilla trichodea, spatulate setae and lanceolate setae were found on the antennae, tarsi and tibiae apex, respectively, with no difference between sexes. Females of C. brunnea have a longer and wider body, as well as a longer fifth urosternite compared to males. The shape of the fifth urosternite allows for sex differentiation in C. brunnea adults.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"54 1","pages":"11"},"PeriodicalIF":1.4,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142818575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nurhan Didem Kızılkan, Metin Konuş, Mehmet Ramazan Rişvanlı, Can Yılmaz, Hilmi Kara, Mehmet Salih Özgökçe, Doğan Çetin, Remzi Atlıhan
{"title":"Impact of Beneficial Microorganisms Inoculated Cotton Plants on Spodoptera exigua (Lepidoptera: Noctuidae).","authors":"Nurhan Didem Kızılkan, Metin Konuş, Mehmet Ramazan Rişvanlı, Can Yılmaz, Hilmi Kara, Mehmet Salih Özgökçe, Doğan Çetin, Remzi Atlıhan","doi":"10.1007/s13744-024-01221-x","DOIUrl":"https://doi.org/10.1007/s13744-024-01221-x","url":null,"abstract":"<p><p>This study discusses plant-mediated effects of beneficial soil-borne microorganisms on population growth parameters of Spodoptera exigua (Lepidoptera: Noctuidae), a major cotton pest. In particular, we investigated the impact of these microorganisms on oxidative stress, chlorophyll content, and sugar and protein levels in cotton plants, and how these changes in the plant affect the survival, development, reproduction, and ultimately population growth of the pest. A longer preadult period, lower preadult survival rate, and lower reproduction were obtained for the pest cohort feeding on treated plants, which resulted in lower population parameters, i.e., intrinsic growth rate, finite growth rate, and net reproduction rate. The population projection results showed the same trend as the population parameters. These results can be attributed to the changes caused by microorganisms in the treated plants. There was no oxidative stress in the treated plants. Instead, the chlorophyll content in these plants increased, and the protein-carbohydrate ratio decreased. Additionally, we assessed the effects of plant-insect-microorganisms interaction on total glutathione levels, glutathione S-transferase, and esterase enzyme activities in S. exigua. Overall results indicate that beneficial microorganisms tested enhance the plant's ability to defend against the pest. Additionally, the findings from this study provide valuable insights into the complex interplay among plants, microorganisms, and pests, offering potential strategies for incorporating these interactions into pest management practices.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"54 1","pages":"7"},"PeriodicalIF":1.4,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142813715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}