Journal of Applied Entomology最新文献

{"title":"Reducing Pest Risk in Birch Wood Products—The Effective Heat Treatment for Bronze Birch Borer Agrilus anxius (Coleoptera: Buprestidae) Prepupae","authors":"Meghan K. Noseworthy,&nbsp;Eric A. Allen,&nbsp;Christian Hébert,&nbsp;Sébastien Bélanger,&nbsp;Esme P. John,&nbsp;Christian J. K. MacQuarrie,&nbsp;Véronique Martel,&nbsp;Tyranna J. Souque","doi":"10.1111/jen.13390","DOIUrl":"https://doi.org/10.1111/jen.13390","url":null,"abstract":"<p>The protection of forest resources and the safe trade of forest products require phytosanitary measures to reduce the risk of pest movement to novel environments. Heat treatment is a widely available, efficient and effective method to produce phytosanitary wood products destined for trade. Defining the minimum effective heat treatment dose required to cause the mortality of insects in wood products reduces the risk of spreading pests to novel environments with the lowest possible energy cost, which in turn reduces environmental impacts and provides confidence in current guidelines for heat treatment regulations. The minimum effective heat treatment dose (time and temperature) for <i>Agrilus anxius</i> (bronze birch borer) prepupae was determined using the Humble water bath applying heat in vitro. Heat treatment was assessed using a controlled increase in temperature to simulate the heat ramp applied to wood in industrial kilns and conventional heat chamber operations. Target temperatures between 51°C and 56°C for exposure durations of 15 and 30 min were tested to determine the minimum effective dose. Prepupal <i>A. anxius</i> did not survive exposure to 53°C, 54°C, 55°C or 56°C for 30 min or 54°C and 56°C for 15 min. Chronic or delayed mortality was observed at 53°C for 15-min treatments. Evaluating the effect of specific heat treatment parameters for other forest pests is recommended to identify and validate the minimum temperature and time required to cause the mortality of wood pests in order to avoid introducing non-indigenous species with wood products and limit pest movement.</p>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"149 3","pages":"430-441"},"PeriodicalIF":1.7,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jen.13390","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Legume-Colonising Aphids as Potential PNYDV-Vectors: Reproduction and Infestation Dynamics in Two Different Field Bean Varieties","authors":"Ahmed Berawe,&nbsp;Heiko Ziebell,&nbsp;Judith Seeger,&nbsp;Helmut Saucke","doi":"10.1111/jen.13391","DOIUrl":"https://doi.org/10.1111/jen.13391","url":null,"abstract":"<p>Faba bean can be infected by <i>Pea necrotic yellow dwarf virus</i> (PNYDV), a novel pathogen throughout Europe, and transmitted persistently by several legume-colonising aphid species. Recent field screenings in Austria and Germany of different faba bean varieties were encouraging as consistently the lowest viral symptom development in the variety ‘GL Sunrise’ was reported. However, our own greenhouse experiments revealed that ‘GL Sunrise’ was not resistant to PNYDV but showed a similar susceptibility such as other common varieties, for example, ‘Fuego’. Therefore, we suspected varietal host traits were affecting the reproductive potential of virus vector species with reduced virus transmission, probably explaining the empirical superior health status in the field. Under greenhouse conditions, vector-specific intrinsic rates of increase (<i>r</i>_<i>m</i>) for <i>Acyrthosiphon pisum</i> Harris <i>Aphis fabae</i> Scopoli and <i>Megoura viciae</i> Buckton were similar for both varieties, except for a particular <i>A. pisum</i>-biotype derived from field pea, with a significantly reduced <i>r</i>_<i>m</i> and fecundity in ‘GL Sunrise’. Furthermore, vector abundance assessments in multisite varietal showed <i>A. pisum</i> as the predominant species. In overall cross-year and -site evaluation, early aphid census in ‘GL Sunrise’ at growth stage BBCH 61–65 indicated significantly lower primary <i>A. pisum</i>-infestation pressure (factor 0,43 relative to ‘Fuego’). This lower infestation level in ‘GL Sunrise’ was kept until BBCH 77–79 but the difference had diminished down to the non-significant factor of 0,74 <i>A. pisum</i>-density relative to ‘Fuego’ in the late census, respectively. Based on our findings of (i) basic PNYDV susceptibility, (ii) similar reproductive vector performance of key aphid species, together with (iii) a significantly weaker initial <i>A. pisum</i>-infestation levels in the field, we hypothesise ‘GL Sunrise’-specific additional antixenosis/antibiotic traits, must influence host recognition and settling behaviour of alighting (viruliferous) migrants and/or apteres, which finally determine the superior PNYDV-health status in ‘GL Sunrise’ at field conditions.</p>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"149 3","pages":"442-451"},"PeriodicalIF":1.7,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jen.13391","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrated Diagnostic Approach Using qPCR, ddPCR and LAMP-Based Molecular Tools for Two Leafhopper Species Identification (Nephotettix cincticeps and Nephotettix virescens)","authors":"Minkyu Jeong,&nbsp;Murtaza Khan,&nbsp;Md-Mafizur Rahman,&nbsp;Moniruzzaman Kabir,&nbsp;Nakjung Choi,&nbsp;JaeBuhm Jeon,&nbsp;Juil Kim","doi":"10.1111/jen.13393","DOIUrl":"https://doi.org/10.1111/jen.13393","url":null,"abstract":"<div>\u0000 \u0000 <p>Accurate identification of the leafhopper species <i>Nephotettix cincticeps</i> and <i>N. virescens</i> is necessary because they feed on phloem sap and transmit plant pathogens including viruses that can cause significant damage to rice plants. Initially, we examined their physical traits using a microscope and a specific camera and observed differences between the two species. To further validate these distinctions on a molecular level, we designed primers based on mitochondrial genome sequences obtained from the NCBI database. The primers were effectively used in general PCR and loop-mediated isothermal amplification (LAMP) tests. General PCR was successfully performed at 61°C using NC_mt5117F33 and NC_mt5438B33 primers for <i>N. cincticeps</i> and NV_mt3089F31, NV_mt3360B31 primers for <i>N. virescens</i>. The effectiveness of the selected primers was validated using quantitative PCR (qPCR) on the pooled gDNA samples and droplet digital PCR (ddPCR). The best conditions for LAMP were 61°C and time 45 min, resulting in the most favourable amplification outcomes. Additionally, LAMP enables diagnosis at the individual level in the field, and qPCR and ddPCR can be used for relative or absolute quantification, even from pooled gDNA from multiple species. This study emphasises the importance of combining traditional and molecular techniques in primary pest species diagnostics to ensure precise and timely pest control, which can contribute to improved pest management strategies.</p>\u0000 </div>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"149 3","pages":"417-429"},"PeriodicalIF":1.7,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629849","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}

{"title":"Vector Biology of the Soft Scales Parthenolecanium corni (Bouché) and Parthenolecanium persicae (Fabricius) (Hemiptera: Coccidae) With Grapevine Leafroll-Associated Viruses and Grapevine Virus A","authors":"Gérard Hommay,&nbsp;Antoine Alliaume,&nbsp;Monique Beuve,&nbsp;Jean-Michel Hily,&nbsp;Etienne Herrbach","doi":"10.1111/jen.13387","DOIUrl":"https://doi.org/10.1111/jen.13387","url":null,"abstract":"<p>Controlled experiments were conducted to enrich our knowledge on the transmission of different grapevine leafroll-associated ampeloviruses (GLRaV-1, -2, -3 and -4) by <i>Parthenolecanium corni</i> scale insect and to look for vector ability of <i>Parthenolecanium persicae.</i> GLRaV-1 and the vitivirus GVA were transmitted by <i>P. corni</i> to healthy plants after acquisition on GLRaV-1 and GVA-infected grapevines (<i>Vitis vinifera</i>); however, GVA was not transmitted after acquisition either on GVA singly infected vines or <i>Nicotiana benthamiana,</i> or on purified GVA virions. These results support the hypothesis of ampelovirus assistance towards vitivirus during transmission. Transmission experiments with <i>P. corni</i> and different GLRaV-4 strains showed a single transmission of strain 5. No transmission was observed with <i>P. persicae</i> after acquisition on GLRaV-1, -3 and GVA coinfected source vines. <i>P. corni</i> L2 collected from an infected vine and placed on a nonhost plant tested positive for GLRaV-1 and -3 until at least 30 and 50 days, respectively. These results contrast with the few days retention times generally reported in mealybugs. More work is needed to determine whether virions are conserved and, if so, their location inside the insects.</p>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"149 3","pages":"405-416"},"PeriodicalIF":1.7,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jen.13387","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Systematic Landscape of Rearing Lepidoptera Order in Laboratory: Applications and Perspectives","authors":"Stephanie Numa-Vergel,&nbsp;Diana Pinzón-Rangel,&nbsp;Liz Alejandra Uribe-Gutiérrez,&nbsp;Adriana Santos-Díaz","doi":"10.1111/jen.13385","DOIUrl":"https://doi.org/10.1111/jen.13385","url":null,"abstract":"<div>\u0000 \u0000 <p>This systematic literature review investigates the body of research on rearing conditions of Lepidoptera insects in laboratory settings. A bibliometric analysis conducted on 368 documents extracted from the Scopus database reveals a historical overview spanning from 1836 to 2023, highlighting significant trends in publication rates and citation counts. Despite a consistent rise in yearly publication rates, citation frequencies have notably declined over time. The analysis further explores geographic trends, with authors from forty-nine countries contributing to the research landscape. Brazil emerges as the leading contributor, followed by the United States and China. Additionally, the study identifies 159 different journals publishing articles on the subject, with the <i>Journal of Economic Entomology</i> leading in publication frequency. The most cited article focuses on the transgenic enhancement of rice plants against lepidopteran pests. Further examination, with an emphasis on factors influencing rearing conditions and behavioural studies, categorises research topics into areas such as basic biology, biological control and ethological control. Clustering analysis reveals distinct research foci, including the study of larval physiology, host–parasite interactions and the genetic basis of biological control strategies such as <i>Bacillus thuringiensis</i> and transgenic plants. Studies focusing on the most common species of Lepidoptera, <i>Spodoptera frugiperda</i>, are also identified. Overall, this review provides a comprehensive overview of the research trends and thematic areas in the field of the rearing of Lepidoptera under laboratory conditions and can be a source of information for researchers interested in this field. This review is limited to the information deposited in Scopus, the number of research studies focused on lepidopteran rearing in laboratories and the low interaction of researchers between countries. In the present work, the lack of information related to the integration of insect-based by-products and the management of insect rearing residues was evidenced, as well as the lack of information on the economic and environmental impacts of the use of insects as a protein source to improve their role in animal and human food systems.</p>\u0000 </div>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"149 3","pages":"384-404"},"PeriodicalIF":1.7,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629757","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}

{"title":"Evaluation of Trap Crops and the Presence of the Predator Nabis americoferus for the Management of the Tarnished Plant Bug in Strawberries","authors":"Mireia Solà Cassi,&nbsp;Noémie Gonzalez,&nbsp;François Dumont,&nbsp;Caroline Provost,&nbsp;Eric Lucas","doi":"10.1111/jen.13389","DOIUrl":"https://doi.org/10.1111/jen.13389","url":null,"abstract":"<p>The polyphagous tarnished plant bug (TPB), <i>Lygus lineolaris</i> (Palisot de Beauvois) (Hemiptera: Miridae), inflicts substantial damage to strawberries and to several other valuable crops, impacting both yield quantity and quality. Effective control strategies are crucial to mitigate these losses. This study aimed to elucidate TPB host preferences and reproductive behaviours under various integrated pest management approaches. Experimental arenas with strawberry plants included treatments involving the predator <i>Nabis americoferus</i> (Carayon) (Hemiptera: Nabidae) and trap crops. In each arena, 30 adult TPBs were exposed to different configurations: (i) three strawberry plants, (ii) three strawberry plants with predators, (iii) one strawberry plant alongside two trap crop plants (buckwheat and canola), and (iv) one strawberry plant with the two trap crops and predators. TPB distribution among the arena, plant species and plant sites (flower, stem and adaxial and abaxial leaves) were monitored over 72 h. One week later, adults were removed and the number of emerged first instar nymphs (L1) was recorded three times postexperiment. The results indicate a preference shift in TPB behaviour influenced by plant diversity and predator presence. TPBs exhibited a reduced presence on strawberries when trap crops were introduced, with canola as a preferred plant. This preference for canola was supported by higher TPB offspring counts. Conversely, buckwheat, although less preferred, contributed to diluting TPB populations across plant species. The introduction of <i>N. americoferus</i> showed dual effects: While reducing TPB oviposition on canola, it increased TPB presence on strawberries, highlighting the importance of nonconsumptive effects (NCEs) of predators in agroecosystems. Nonetheless, the combination of canola as a trap crop and <i>N. americoferus</i> as a predator effectively reduces TPB presence on strawberry flowers, essential for fruit development. This approach shows promise when integrated with other strategies, such as vacuuming and pheromone-enhanced coloured traps.</p>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"149 3","pages":"372-383"},"PeriodicalIF":1.7,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jen.13389","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Field Evaluations of a Novel Biodegradable Microfibrillated Cellulose Hydrogel Bait Targeting the Invasive White-Footed Ant, Technomyrmex brunneus","authors":"Mamoru Terayama,&nbsp;Toshiyuki Kankawa,&nbsp;Hideo Shirai,&nbsp;Yasuhiro Tomioka,&nbsp;Shuhei Kohno,&nbsp;Kazuya Matsumoto,&nbsp;Joe Kutsukake,&nbsp;Eiriki Sunamura,&nbsp;Katsuyuki Eguchi","doi":"10.1111/jen.13388","DOIUrl":"https://doi.org/10.1111/jen.13388","url":null,"abstract":"<div>\u0000 \u0000 <p>The development of more effective control methods for invasive alien ants is crucial, given the extensive damage these ants cause. In recent years, hydrogel baits—superabsorbent polymers containing a water solution of insecticides and ingredients that promote or attract ant feeding—have been developed and used to control invasive ants. More recently, biodegradable hydrogel baits have been developed and tested for efficacy. We have developed a new type of biodegradable hydrogel bait in which microfibrillated cellulose (MFC) derived from plant cellulose acts as a gelling agent. A cafeteria experiment, including the conventionally used sodium polyacrylate hydrogel bait and the newly developed biodegradable MFC hydrogel baits with various chemical properties, showed that both types of hydrogel bait were highly effective in recruiting workers of the invasive white-footed ant, <i>Technomyrmex brunneus</i>, to the same degree. Among the MFC hydrogel baits tested, the more effective substrates were selected, and their control efficacy was confirmed in field experiments; baiting at 2-week intervals reduced the population of <i>T. brunneus</i> by more than 90%. The biodegradable MFC hydrogel baits have substantial potential to effectively control invasive ants, with a smaller environmental impact than the conventional sodium polyacrylate hydrogel baits.</p>\u0000 </div>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"149 3","pages":"363-371"},"PeriodicalIF":1.7,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629755","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}

{"title":"Prediction Model of the Temporal Dynamics of Severe Pest Cashew Anacampsis phytomiella Using Artificial Neural Networks","authors":"Guilherme Pratissoli Pancieri,&nbsp;Maria do Socorro Cavalcante de Souza Mota,&nbsp;Jhersyka da Silva Paes,&nbsp;Letícia Caroline da Silva Sant'Ana,&nbsp;Juliana Magalhães Soares,&nbsp;Daiane das Graças do Carmo,&nbsp;Ricardo Siqueira da Silva,&nbsp;Marcelo Coutinho Picanço","doi":"10.1111/jen.13383","DOIUrl":"https://doi.org/10.1111/jen.13383","url":null,"abstract":"<div>\u0000 \u0000 <p>The cashew tree (<i>Anacardium occidentale</i>) is a tropical plant that yields the world's most consumed nut. <i>Anacampsis phytomiella</i> (Lepidoptera: Gelechiidae) is the primary pest that infests cashew nuts, leading to losses of up to 80%. The comprehension of the spatiotemporal dynamics of pests enables enhanced planning of sampling and control methods. Artificial neural networks (ANNs) are computational models in machine learning with high predictive capability. Thus, the objective of this study was to determine a seasonal dynamic model of <i>A. phytomiella</i> using ANNs. Over 3 years, the pest attack intensity and climatic elements were monitored in two cashew orchards. A total of 1716 ANN models were determined. The model predictors included the time of plant fruiting, average air temperature, dew point, atmospheric pressure and rainfall. The temperature, atmospheric pressure and time of plant fruiting had a positive effect on pest infestation, while the opposite occurred with rainfall. The pest infestation curve in relation to the dew point exhibited a point of maximum. The model successfully predicted the intensity of <i>A. phytomiella</i> infestation across different years, plant fruiting stages and pest densities. Therefore, the ANN model determined in this study is promising for predicting the intensity of <i>A. phytomiella</i> infestation in cashew orchards.</p>\u0000 </div>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"149 3","pages":"350-362"},"PeriodicalIF":1.7,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629807","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}

{"title":"Study on Wax Secretion and Wax-Secreting System of Mulberry Pest Paurocephala sauteri Enderlein (Hemiptera: Psyllidae)","authors":"Hongxian Wei,&nbsp;Tao Geng,&nbsp;Huazhou Wu,&nbsp;Dezhao Lou,&nbsp;Fuping Lu,&nbsp;Shuchang Wang","doi":"10.1111/jen.13382","DOIUrl":"https://doi.org/10.1111/jen.13382","url":null,"abstract":"<div>\u0000 \u0000 <p><i>Paurocephala sauteri</i> Enderlein is one of the most important pests of mulberry trees in the tropical and subtropical regions of China. This species by penetrating the veins on the back of leaves and buds of mulberry trees, nymphs and female adults can secrete wax, these wax accumulated on the mulberry leaves significantly affects photosynthesis and silkworm cultivation. Therefore, this study aimed to understand the wax-secreting system and characteristics of wax secretion, expecting a potential strategy to control the species population. The main findings were as follows: scanning electron microscopy revealed that the nymphs and female adults secrete wax in long tubes with spherical ends, and male adults secrete honeydew. Additionally, the wax-secreting system of the nymphs and female adults differ, the nymph owned a bending moon-shaped wax-secreting system, the wax-secreting system first instar nymph consisted of one circle of rectangular, depressed cell, whereas the wax-secreting system of second to fifth instar nymph made up of one circle of rectangular, depressed cell and one circle of round, depressed cell. There were a certain number of white pores inside of this depressed cell. Wax filaments produced by these pores are converted into a dense, tight and hollow the wax tube. Gas chromatography/mass spectrometer showed that the main constituents of <i>P. sauteri</i> wax are hydrocarbons. The wax tube as a water conservation pool during the <i>P. sauteri</i> developmental process. This physiological feature may be a key point for a potential strategy to control <i>P. sauteri</i>, even other secreting insects.</p>\u0000 </div>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"149 3","pages":"340-349"},"PeriodicalIF":1.7,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629750","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}

{"title":"Dynamics of Natural Mortality Factors of Immature Diatraea saccharalis (Fabricius) (Lepidoptera: Crambidae) in Sugarcane Adjacent to Forest Fragments","authors":"Sabrina Juvenal de Oliveira,&nbsp;Vinícius Cesarin,&nbsp;Odair Aparecido Fernandes","doi":"10.1111/jen.13384","DOIUrl":"https://doi.org/10.1111/jen.13384","url":null,"abstract":"<div>\u0000 \u0000 <p>Pest regulation may be favoured in crop fields adjacent to semi-natural vegetation such as fragments of the Atlantic Forest in Southeastern Brazil. Therefore, the objective of this study was to analyse the dynamics of mortality factors for eggs and larvae of <i>Diatraea saccharalis</i> (Lepidoptera: Crambidae) in sugarcane adjacent to two types of forest fragments (Plateau and Gallery) at two distances from these fragments during two growing seasons. In each area (seven sugarcane plots), two 50 m long transects were established, parallel and spaced at 5 and 100 m from the field edge, and cohorts of the insect at each stage of development were monitored. The collected data were used to construct an ecological life table and determine the main mortality factors. Natural mortality factors that could not be characterised were grouped as unknown. In both seasons and stages of development observed, there was no difference in mortality between the two types of forest fragments (Plateau and Gallery) or between the two distances from the forest. For the egg stage, the mortality factors were classified as inviable due to infertility, predation, parasitism, desiccation and dislodgement. In both seasons, there was a significant difference in the natural mortality factors of <i>D. saccharalis</i>, with predation distinct from the others. Ants (Hymenoptera: Formicidae) and green lacewings (Neuroptera: Chrysopidae) were the most frequent predatory agents and occurred at both distances and types of forest fragments. For the larval stage, the mortality factors were classified as predation, parasitism, drowning and unknown, with the unknown group differing from the others. Unknown factors might have included predation, larval movement towards other plants and displacement caused by wind after hatching. Overall, predation is a key mortality component of <i>D. saccharalis</i> suppression. Therefore, agricultural practices focused on the conservation of natural enemies such as predators may provide more sustainable management.</p>\u0000 </div>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"149 2","pages":"278-291"},"PeriodicalIF":1.7,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143475812","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}