Florida Entomologist最新文献

{"title":"The Presence of Xylosandrus compactus (Coleoptera: Curculionidae: Scolytinae) in the Sierra Negra of Puebla, Veracruz and Oaxaca, Mexico","authors":"Armando Equihua-Martínez, José Domingo Robledo-Martínez, Juan F. Barrera","doi":"10.1653/024.106.0307","DOIUrl":"https://doi.org/10.1653/024.106.0307","url":null,"abstract":"El taladrador negro de las ramas, Xylosandrus compactus (Eichhoff) fue detectado en Tepexilotla, localidad de Zoquitlán, municipio de la Sierra Negra de Puebla, México en Noviembre de 2021. Una revisión posterior del área infestada y de los municipios aledaños a Zoquitlán, realizada en junio y julio de 2022, mostró que X. compactus infestaba principalmente café Robusta, pero también algunas plantas de café Arábica. En 2022, el insecto plaga se detectó en cafetales de comunidades del municipio de Tezonapa, Veracruz y en comunidades del municipio de Santa María Chilchotla, Oaxaca, cercanas a la zona infestada en Puebla. Ahora, con este reporte, existen 3 especies del género Xylosandrus en México: X. curtulus, X. morigerus y, X. compactus; de estas, X. morigerus y X. compactus son plagas económicamente importantes para el cultivo del café.","PeriodicalId":12297,"journal":{"name":"Florida Entomologist","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135093762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"June 2023 Florida Entomological Society Corporate and Sustaining Members","authors":"","doi":"10.1653/024.106.0215","DOIUrl":"https://doi.org/10.1653/024.106.0215","url":null,"abstract":"","PeriodicalId":12297,"journal":{"name":"Florida Entomologist","volume":"106 1","pages":"147 - 147"},"PeriodicalIF":1.4,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48827720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insights into the Use of a Mass Trapping Strategy to Control Fruit Fly Populations (Diptera: Tephritidae) in Guatemala: A Study Case in a Citrus Growing-Area","authors":"Edgar M. Cotoc-Roldan, V. Vanoye‐Eligio, Amablita Castillo-Estudillo, F. Reyes-Zepeda, L. Arellano-Méndez","doi":"10.1653/024.106.0204","DOIUrl":"https://doi.org/10.1653/024.106.0204","url":null,"abstract":"Abstract Mass trapping is a control method for fruit fly pests (Diptera: Tephritidae) in fruit-growing areas. This study aimed at providing information on the use of mass trapping using Cera Trap® to control fruit fly pests in a citrus-growing area in Guatemala. We analyzed the “flies per number of traps × exposure d” index and sex ratios of fly populations based on 3 trapping types: a mass trapping network, a monitoring trap in the center of a plot involving mass trapping, and another trap installed in a plot without mass trapping. Sex ratios within and between trapping types, as well as the flies per number of traps × exposure d between trapping types were compared. Eleven fruit fly species were identified, and 4 of them were used in the analysis: Anastrepha ludens (Loew), Anastrepha distincta (Greene), Anastrepha serpentina (Wiedemann), and Ceratitis capitata Wiedemann (all Diptera: Tephritidae). No differences in the sex ratio were observed between the trapping types, but it was female-biased within mass trapping. A negative effect of mass trapping on the flies per number of traps × exposure d of pest populations was noted. We discussed the use of mass trapping highlighting citrus agroecosystems as a shelter for fruit fly communities including pest species. Further research on agroecological variables and their effect on the mass trapping strategy is suggested. Resumen El trampeo masivo es un método de control para plagas de moscas de la fruta (Diptera: Tephritidae) en áreas frutícolas. Este estudio tuvo como objetivo proveer información sobre el uso del trampeo masivo con Cera Trap® para el control de plagas de moscas de la fruta en áreas citrícolas de Guatemala. Se analizó el índice de “moscas por número de trampas × días de exposición” and la proporción de sexo de las poblaciones de mosca basados en 3 tipos de trampeo: una red de trampeo masivo, una trampa de monitoreo en el centro del sitio involucrando el trampeo masivo, y otra trampa instalada en otro sitio sin trampeo masivo. Se comparó las proporciones de sexo dentro y entre los tipos de trampeo, así como las moscas por número de trampas × exposición dia entre los tipos de trampeo. Once especies de moscas de la fruta fueron identificadas, y 4 de ellas fueron utilzadas en el análisis: Anastrepha ludens (Loew), Anastrepha distincta (Greene), Anastrepha serpentina (Wiedemann), and Ceratitis capitata Wiedemann (todos Diptera: Tephritidae). No se observaron diferencias en la proporción de sexo entre los tipos de trampeo, sin embargo, hubo un sesgo hacia las hembras dentro del trampeo masivo. Se determinó un efecto negativo del trampeo masivo sobre las moscas por número de trampas × exposición dia. Se discute el uso del trampeo masivo destacando los agroecosistemas citrícolas como refugio de comunidades de moscas de la fruta incluyendo las especies plaga. Se sugiere mayor investigación sobre variables agroecológicas y su efecto en la estrategia de trampeo masivo.","PeriodicalId":12297,"journal":{"name":"Florida Entomologist","volume":"106 1","pages":"90 - 96"},"PeriodicalIF":1.4,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47246758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Applications of Molecular Diagnostics for Quality Control in Rearing of Spodoptera frugiperda (Lepidoptera: Noctuidae) Larvae for Experimental Use","authors":"Francisco Javier Flores Gallardo, José Luis Hernández Flores, M. A. Ramos López, Jackeline Lizzeta Arvizu Gómez, V. P. Moreno, José Alberto Rodríguez Morales, Erika Álvarez Hidalgo, Jorge Nuñez Ramírez, George H. Jones, Juan Campos Guillén","doi":"10.1653/024.106.0212","DOIUrl":"https://doi.org/10.1653/024.106.0212","url":null,"abstract":"Summary Illumina MiSeq sequencing of 16S rRNA genes was applied in a molecular diagnostic analysis of healthy and dead larvae obtained from a Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) colony. The results indicated the presence of Enterococcus (Lactobacillales: Enterococcaceae) with an average abundance of 89.2% and 94.8% in healthy and dead larvae, respectively. Pseudomonas (Pseudomonadales: Pseudomonadaceae) and Acetobacter (Rhodospirillales: Acetobacteraceae) were present in lower abundance. Additional metagenomic results revealed the presence in dead larvae of viral sequences related to Alphabaculovirus in high relative abundance compared with healthy larvae. Additionally, viral sequences of tomato leaf curl Laos virus, Heliothis zea (Boddie) (Lepidoptera: Noctuidae) nudivirus, Clostera anachoreta (Denis & Schiffermüller) (Lepidoptera: Notodontidae) granulovirus, and Tipula oleracea L. (Diptera: Tipulidae) nudivirus were detected. Our results show that molecular detection of pathogenic agents is a useful tool during insect rearing as a quality control to avoid the spread or acquisition of potential pathogens. Sumario Nuestros resultados demuestran que a través de un diagnóstico molecular en Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae), usando secuenciación del 16S rDNA por Illumina MiSeq, en larvas saludables y muertas mostraron una abundancia relativa alta de Enterococcus (Lactobacillales: Enterococcaceae) con un promedio de 89.2% and 94.8% respectivamente. Mientras que Pseudomonas (Pseudomonadales: Pseudomonadaceae) y Acetobacter (Rhodospirillales: Acetobacteraceae) presentaron menor abundancia relativa. Adicionalmente, resultados de metagenomica mostraron en larvas muertas secuencias de virus relacionados con Alphabaculovirus con una abundancia relativa muy alta comparada con las larvas saludables. Se detectaron secuencias virales relacionadas al Encrespamiento amarillo de la hoja del tomate, Heliothis zea (Boddie) (Lepidoptera: Noctuidae) nudivirus, Clostera anachoreta (Denis & Schiffermüller) (Lepidoptera: Notodontidae) granulovirus and Tipula oleracea L. (Diptera: Tipulidae) nudivirus. Nuestros resultados demuestran que una detección molecular de agentes patogénicos es primordial durante la crianza de insectos como un control de calidad para evitar su dispersión o adquisición.","PeriodicalId":12297,"journal":{"name":"Florida Entomologist","volume":"106 1","pages":"137 - 140"},"PeriodicalIF":1.4,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49557448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Field Sampling Methods for Asiatic Garden Beetle (Coleoptera: Scarabaeidae) Adult Movement and Flight in the Great Lakes Region","authors":"Adrian J. Pekarcik, Amy L Raudenbush, Kyle J. Akred, E. Richer, K. Tilmon","doi":"10.1653/024.106.0208","DOIUrl":"https://doi.org/10.1653/024.106.0208","url":null,"abstract":"Abstract The Asiatic garden beetle, Maladera formosae (Brenske) (Coleoptera: Scarabaeidae), was introduced into the US in 1921 and recently has become a significant early-season pest of field corn in Ohio, Indiana, and Michigan, USA. Adults emerge from the soil in mid-summer, feed, mate, and lay eggs in the crop soil. Although adult feeding causes no apparent damage in field crops, these beetles are responsible for laying eggs that hatch into the grubs that overwinter and feed on corn the following spring. The objective of this study was to evaluate sampling methods used for other annual white grub species for their efficacy with M. formosae adults in a corn-soybean production system. We performed 2 experiments to first evaluate pitfall traps and sticky cards for sampling beetle emergence, then evaluate antifreeze milkjug traps and blacklight traps for sampling beetle flight. Pitfall traps were effective at capturing beetles, but not sticky cards. Peak abundance was observed between 28 Jun and 5 Jul. Flying adults were predominately attracted to the blacklight trap and nearly 100 times more adults were trapped in the blacklight compared to the milkjug traps. Flying beetles were more attracted to milkjug traps containing propylene glycol antifreeze than water or ethylene glycol antifreeze. These findings may provide economical tools for monitoring adult flight movement and flight. Resumen El escarabajo asiático de jardín, Maladera formosae (Brenske) (Coleoptera: Scarabaeidae), se introdujo en los EE. UU. en 1921 y recientemente se ha convertido en una plaga importante de la época temprana del maíz en Ohio, Indiana, y Michigan, EE. UU. Los adultos emergen del suelo en el medio del verano, se alimentan, se aparean y ponen huevos en el suelo de cultivo. Aunque la alimentación de los adultos no causa daños aparentes en los cultivos de campo, estos escarabajos son responsables de poner huevos que se convierten en larvas que pasan el invierno y se alimentan del maíz en la primavera siguiente. El objetivo de este estudio fue evaluar la eficacia de los métodos de muestreo utilizados para otras especies anuales de gallina ciega sobre los adultos de M. formosae en un sistema de producción de maíz y soja. Realizamos dos experimentos para evaluar primero las trampas de caída y las tarjetas adhesivas para muestrear la emergencia de escarabajos, luego evaluar las trampas de leche anticongelante y las trampas de luz negra para muestrear el vuelo de los escarabajos. Las trampas de caída fueron efectivas para capturar escarabajos, pero no las tarjetas adhesivas. Se observó la abundancia máxima entre el 28 de junio y el 5 de julio. Los adultos voladores se sintieron atraídos predominantemente por la trampa de luz negra y casi 100 veces más adultos quedaron atrapados en la luz negra en comparación con las trampas de jarras de leche. Los escarabajos voladores fueron más atraídos por las trampas de jarras de leche que contenían anticongelante de propilenglicol que el ","PeriodicalId":12297,"journal":{"name":"Florida Entomologist","volume":"106 1","pages":"117 - 121"},"PeriodicalIF":1.4,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43090519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Potential Pheromone for the Mass Trapping of Aethina tumida (Coleoptera: Nitidulidae)","authors":"Charles J. Stuhl, P. Teal","doi":"10.1653/024.106.0203","DOIUrl":"https://doi.org/10.1653/024.106.0203","url":null,"abstract":"Abstract Observations of wild and colony-reared small hive beetle populations indicate that the beetles form aggregations of many individuals of both sexes. Volatile collections performed on males and females have identified a potential male-produced pheromone comprised of 6-methyl-5-hepten-2-one, nonanal, and decanal. Flight tunnel and laboratory trapping assays were conducted using a synthetic pheromone blend (i.e., 6-methyl-5-hepten-2-one, nonanal, and decanal) and a blend of fruit volatiles (i.e., ethanol, ethyl butyrate, acetic acid, ethyl acetate, and acetaldehyde). Results showed that the synthetic pheromone blend along with a fruit-derived attractant captured significantly more beetles than the control. The identification of a potential pheromone is an important step in the search to provide effective control and monitoring of the small hive beetle. Resumen Las observaciones de poblaciones de pequeños escarabajos de la colmena silvestre criados en colonias indican que los escarabajos forman agregaciones de muchos individuos de ambos sexos. Recolecciones volátiles realizadas sobre los machos y hembras han identificado una posible feromona producida por machos compuesta por 6-metil-5-hepten-2-ona, nonanal y decanal. Los ensayos de captura en laboratorio y en el túnel de vuelo se realizaron utilizando una mezcla de feromonas sintéticas (es decir, 6-metil-5-hepten-2-ona, nonanal y decanal) y de volátiles de frutas (etanol, butirato de etilo, ácido acético, acetato de etilo y acetaldehído). Los resultados mostraron que la mezcla de feromonas sintéticas junto con un atrayente derivado de frutas capturó significativamente más escarabajos que el control. La identificación de una feromona potencial es un paso importante en la búsqueda para proporcionar un control y seguimiento efectivos del pequeño escarabajo de la colmena.","PeriodicalId":12297,"journal":{"name":"Florida Entomologist","volume":"106 1","pages":"83 - 89"},"PeriodicalIF":1.4,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46142843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Maximum Concentration Bioassay to Assess Insecticide Efficacy Against Hemipteran Pests of Tomato","authors":"B. D. de Marchi, Megan Hennessey, W. Turechek, Hugh A. Smith","doi":"10.1653/024.106.0211","DOIUrl":"https://doi.org/10.1653/024.106.0211","url":null,"abstract":"Summary Hemipterans have resurged as a pest of tomato in south Florida. To determine if the problem was related to insecticide efficacy, populations of southern green stink bug (Nezara viridula [L.]; Hemiptera: Pentatomidae), brown stink bug (Euschistus quadrator Rolston; Hemiptera: Pentatomidae), and a leaf-footed bug (Leptoglossus phyllopus [L.]; Hemiptera: Coreidae) were collected from 8 commercial tomato farms in South Florida, and third instar nymphs were subjected to a maximum concentration bioassay. Insects from the F1 generation were confined in plastic containers with grape tomatoes treated with the highest labeled application rate of 6 insecticides commonly used for hemipteran management in tomatoes: bifenthrin, lambda-cyhalothrin, zeta-cypermethrin (pyrethroids), dinotefuran, imidacloprid, and thiamethoxam (neonicotinoids). Mortality was observed after 72 h. Bifenthrin was the most effective pyrethroid with mortality ranging from 73 to 100%. Dinotefuran was the most effective neonicotinoid with mortality ranging from 47 to 87%. In contrast, imidacloprid produced consistently poor results, with mortality ranging from 0 to 60%. Populations varied in their susceptibility to insecticides tested, but tests did not reveal evidence of lack of insecticide efficacy. Sumario Los hemipteranos han resurgido como plaga del tomate en el sur de Florida. Para determinar si el problema estaba relacionado con la eficacia de los insecticidas, se recolectaron poblaciones del chinche hediondo verde del sur (Nezara viridula [L.]; Hemiptera: Pentatomidae), el chinche hediondo café (Euschistus quadrator Rolston; Hemiptera: Pentatomidae) y un chinche de patas laminadas (Leptoglossus phyllopus [L.]; Hemiptera: Coreidae) de 8 granjas de tomate comerciales en el sur de Florida, y las ninfas de tercer estadio se sometieron a un bioensayo de concentración máxima. Los insectos de la generación F1 se limitaron en recipientes de plástico con tomates de uva tratados con la tasa de aplicación más alta etiquetada de 6 insecticidas comúnmente utilizados para el manejo de hemipteranos en tomates: bifentrina, lambda-cyhalothrin, zeta-cypermetrin (piretroides), dinotafurán, imidacloprida y thiametoxamam (neonicotinoides). La mortalidad se observó después de 72 horas. La bifentrina fue el piretroide más efectivo con mortalidad que varió del 73 al 100%. DinoteFuran fue el neonicotinoide más efectivo con mortalidad que varió del 47 al 87%. En contraste, el imidacloprid produjo resultados consistentemente pobres, con mortalidad que varía de 0 a 60%. Las poblaciones variaron en su susceptibilidad a los insecticidas probados, pero las pruebas no revelaron evidencia de falta de eficacia de insecticidas.","PeriodicalId":12297,"journal":{"name":"Florida Entomologist","volume":"106 1","pages":"133 - 136"},"PeriodicalIF":1.4,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44820380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Erythritol and Sucralose Formulation on the Survivorship of the Mosquito Aedes aegypti","authors":"Lauren Maestas, Jana C. Lee, Man‐Yeon Choi","doi":"10.1653/024.106.0210","DOIUrl":"https://doi.org/10.1653/024.106.0210","url":null,"abstract":"Summary Erythritol, a non-nutritive 4-carboned polyol, was demonstrated to have insecticidal properties for multiple arthropod pests. The erythritol formulations combined with sucrose, as a phagostimulant, enhanced consumption and insecticidal efficiency on the pests. However, adding sucrose contributes nutritional carbohydrate resources in the same pests, can lead to the development of microbes in the field, and creates a sticky residue on plants sprayed with the solution. In this study, we tested and compared erythritol formulations combined with sucrose or sucralose, and identified insecticidal activities on adults of the mosquito Aedes aegypti. The erythritol and sucralose formulation is a less sticky solution, and significantly reduced the survivorship of adult mosquitoes, it may have merit as an alternative method for mosquito control and warrants further evaluation. Sumario Se demostró que el eritritol, un poliol de 4 carbonos no nutritivo, tiene propiedades insecticidas para múltiples plagas de artrópodos. Las formulaciones de eritritol combinadas con sacarosa, como fagoestimulante, mejoraron el consumo y la eficacia insecticida sobre las plagas. Sin embargo, el agregar sacarosa aporta recursos nutricionales de carbohidratos en las mismas plagas, que puede conducir al desarrollo de microbios en el campo y crear un residuo pegajoso en las plantas rociadas con la solución. En este estudio, probamos y comparamos formulaciones de eritritol combinadas con sacarosa o sucralosa, e identificamos actividades insecticidas en adultos del mosquito Aedes aegypti. La formulación de eritritol y sucralosa es una solución menos pegajosa y redujo significativamente la sobrevivencia de los mosquitos adultos, puede tener mérito como método alternativo para el control de mosquitos y justifica una evaluación adicional.","PeriodicalId":12297,"journal":{"name":"Florida Entomologist","volume":"106 1","pages":"129 - 132"},"PeriodicalIF":1.4,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46279597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First Recorded Feeding of Syngamia florella (Lepidoptera: Crambidae: Spilomelinae) on Ipomoea batatas (Convolvulaceae) in Brazil","authors":"Maria Jéssica dos Santos Cabral, R. Pinheiro, Germano Leão Demolin Leite, R. S. da Silva, RonnieVon dos Santos Veloso, J. Serrão, J. C. Zanuncio, M. A. Soares","doi":"10.1653/024.106.0214","DOIUrl":"https://doi.org/10.1653/024.106.0214","url":null,"abstract":"Summary Spilomelinae comprises more than 5,200 described species worldwide. Several species are known for their economic impact on crops, occurring in high populations in host plants, with different degrees of host specificity. The objective was to record caterpillars of Syngamia florella (Stoll in Cramer & Stoll) (Lepidoptera: Crambidae: Spilomelinae) feeding on leaves of Ipomea batatas (L.) Lam. (Convolvulaceae). Plants damaged by S. florella were observed in the field in the municipality of Diamantina, state of Minas Gerais, Brazil. This is the first record of S. florella feeding and completing its cycle on I. batatas. Registering a new host for S. florella is important to understand this insect's survival, dispersal, establishment, and damage in areas where I. batatas is cultivated. Sumario Spilomelinae compreende mais de 5.200 espécies descritas em todo o mundo. Várias espécies são conhecidas por seu impacto econômico nas lavouras, ocorrendo em altas populações em plantas hospedeiras, com diferentes graus de especificidade ao hospedeiro. O objetivo foi registrar lagartas de Syngamia florella (Stoll in Cramer & Stoll) (Lepidoptera: Crambidae: Spilomelinae) alimentando-se de folhas de Ipomea batatas (L.) Lam. (Convolvulaceae). Plantas danificadas por S. florella foram observadas em campo, no município de Diamantina, estado de Minas Gerais, Brasil. Este é o primeiro registro de S. florella alimentando-se e completando seu ciclo em I. batatas. O registro de um novo hospedeiro para S. florella é importante para entender a sobrevivência, dispersão, estabelecimento e dano desse inseto em áreas onde I. batatas é cultivada.","PeriodicalId":12297,"journal":{"name":"Florida Entomologist","volume":"106 1","pages":"144 - 146"},"PeriodicalIF":1.4,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45549580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Tenthredinid Leaf Miner Invasions on Growth of Alaska White Birch in Anchorage, Alaska, USA, and the Interaction with Biological Control of Amber-Marked Birch Leaf Miner","authors":"R. V. Van driesche, J. Duan, Jeanne L. D. Osnas","doi":"10.1653/024.106.0207","DOIUrl":"https://doi.org/10.1653/024.106.0207","url":null,"abstract":"Abstract The amber-marked birch leaf miner, Profenusa thomsoni (Konow) (Hymenoptera: Tenthredinidae), invaded the Anchorage region in southeastern Alaska, USA, about 1991 and by 1996 caused high levels of mining, resulting in browned foliage annually by Aug during the outbreak years of 1996 to 2007. A biological control program began in 2004 based on the importation of the larval parasitoid Lathrolestes thomsoni Reshchikov (Hymenoptera: Ichneumonidae), which previously had suppressed an outbreak of amber-marked birch leaf miner in Alberta, Canada. By 2008, this introduced parasitoid and 2 resident species (native or self-introduced) reduced damage to Alaska white birch by > 50%. In 2020, as a follow up, 100 Alaska white birch in forested parks in Anchorage were cored to see if leaf mining had reduced tree growth during the outbreak and whether biocontrol of amber-marked birch leaf miner allowed tree growth to recover. Compared to 12 yr (1984–1995) before the start of the outbreak, radial growth was suppressed by approximately 16% during the outbreak (1996–2007). During the 11 yr after suppression of damage through biocontrol (2008–2018), tree radial growth of Alaska white birch did not recover, but rather declined further. This pattern may be due to the invasion around 2008 of another birch leaf miner, Heterarthrus nemoratus (Fallén) (Hymenoptera: Tenthredinidae). These findings show that outbreaks of birch leaf miners caused an important drop in growth of Alaska white birch, which has implications for forest productivity and carbon sequestration by birch-dominated forest stands in southeast Alaska. Resumen El minador de hojas de abedul de marcado ámbar, Profenusa thomsoni (Konow) (Hymenoptera: Tenthredinidae), invadió la región de Anchorage en el sureste de Alaska alrededor de 1991 y en 1996 causó altos niveles de daño, lo que resultó en un brote de follaje dorado anualmente durante agosto desde los años de 1996 hasta el 2007. En el 2004, se inició un programa de control biológico basado en la importación del parasitoide larval Lathrolestes thomsoni Reshchikov (Hymenoptera: Ichneumonidae), que previamente había suprimido un brote de minador de hojas de abedul marcado con ámbar en Alberta, Canadá. Para el 2008, este parasitoide introducido y 2 especies residentes (nativas o autointroducidas) redujeron el daño al abedul blanco de Alaska en > 50%. En el 2020, como seguimiento, se tomaron muestras de 100 abedules blancos de Alaska en parques boscosos en Anchorage para ver si la minería de hojas había reducido el crecimiento de los árboles durante el brote y si el biocontrol del minador de hojas de abedul de marcado ámbar permitió que el crecimiento de los árboles se recuperara. En comparación con los 12 años (1984–1995) antes del comienzo del brote, el crecimiento radial se suprimió en aproximadamente un 16% durante el brote (1996–2007). Durante los 11 años posteriores a la supresión del daño a través del control biológico (2008–2018), el crecimient","PeriodicalId":12297,"journal":{"name":"Florida Entomologist","volume":"106 1","pages":"110 - 116"},"PeriodicalIF":1.4,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46869216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}