In 2003–2004, a trapping study with multiple-funnel traps was conducted in Florida, Georgia, North Carolina, and Louisiana to evaluate the effects of the bark beetle pheromones ipsenol, ipsdienol, and lanierone on catches of bark beetles and associated species. The results on bark and ambrosia beetles have been reported previously. Herein, we report on the responses of predators in the same study. Ipsenol and/or ipsdienol attracted several species of coleopteran predators: Enoclerus nigripes (Say) (Cleridae); Temnoscheila virescens (F.) (Trogossitidae); Lasconotus species (Zopheridae); Corticeus species (Tenebrionidae); and Platysoma attenuatum LeConte, Platysoma cylindricum (Paykull), and Platysoma parallelum (Say) (Histeridae). Lanierone was not attractive alone, nor did it enhance trap catches of any of these predator species. In Georgia, lanierone interrupted attraction of E. nigripes to traps baited with ipsenol. We highlight that the use of lanierone appears to be restricted to three Ips species in the subgenus Ips (Bonips). Further research on the general role of lanierone in the chemical ecology of bark beetles and predators should be conducted over a broad geographic range.
2003-2004 年，在佛罗里达州、佐治亚州、北卡罗来纳州和路易斯安那州进行了一项多隧道诱捕器诱捕研究，以评估树皮甲虫信息素 ipsenol、ipsdienol 和 lanierone 对树皮甲虫及相关物种捕获量的影响。有关树皮甲虫和伏甲虫的研究结果已在之前报道过。在此，我们将报告同一研究中捕食者的反应。Ipsenol 和/或 ipsdienol 吸引了几种鞘翅目捕食者：Enoclerus nigripes (Say) (Cleridae); Temnoscheila virescens (F.) (Trogossitidae); Lasconotus species (Zopheridae); Corticeus species (Tenebrionidae); and Platysoma attenuatum LeConte, Platysoma cylindricum (Paykull), and Platysoma parallelum (Say) (Histeridae).单独使用 Lanierone 并不具有吸引力，也不会增加捕食者的捕获量。在佐治亚州，羊毛脂醚酮可阻断黑腹角雉对以ipsenol为诱饵的诱捕器的吸引力。我们强调，羊毛脂酮的使用似乎仅限于 Ips（Bonips）亚属中的三个 Ips 种类。关于羊毛甾酮在树皮甲虫和捕食者化学生态学中的一般作用，应在广泛的地理范围内开展进一步研究。
{"title":"Trap Catches of Bark Beetle Predators Unaffected by the Ips Pheromone Lanierone in Southeastern United States1","authors":"D.R. Miller, C. Asaro","doi":"10.18474/jes24-13","DOIUrl":"https://doi.org/10.18474/jes24-13","url":null,"abstract":"\u0000 In 2003–2004, a trapping study with multiple-funnel traps was conducted in Florida, Georgia, North Carolina, and Louisiana to evaluate the effects of the bark beetle pheromones ipsenol, ipsdienol, and lanierone on catches of bark beetles and associated species. The results on bark and ambrosia beetles have been reported previously. Herein, we report on the responses of predators in the same study. Ipsenol and/or ipsdienol attracted several species of coleopteran predators: Enoclerus nigripes (Say) (Cleridae); Temnoscheila virescens (F.) (Trogossitidae); Lasconotus species (Zopheridae); Corticeus species (Tenebrionidae); and Platysoma attenuatum LeConte, Platysoma cylindricum (Paykull), and Platysoma parallelum (Say) (Histeridae). Lanierone was not attractive alone, nor did it enhance trap catches of any of these predator species. In Georgia, lanierone interrupted attraction of E. nigripes to traps baited with ipsenol. We highlight that the use of lanierone appears to be restricted to three Ips species in the subgenus Ips (Bonips). Further research on the general role of lanierone in the chemical ecology of bark beetles and predators should be conducted over a broad geographic range.","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141799261","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":"New State Record and DNA Barcode Information for Philolema latrodecti (Hymenoptera: Eurytomidae) in Georgia1","authors":"E. Mondor, J. S. Harrison","doi":"10.18474/jes24-08","DOIUrl":"https://doi.org/10.18474/jes24-08","url":null,"abstract":"","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141800531","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":"Combining Lures for Conifer and Hardwood Cerambycidae in Multiple-Funnel Traps in Georgia—A Preliminary Study1","authors":"Daniel R. Miller","doi":"10.18474/jes24-27","DOIUrl":"https://doi.org/10.18474/jes24-27","url":null,"abstract":"","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141801937","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}
Bark beetles in the genus Tomicus (Latreille) (Coleoptera: Scolytidae) are the most destructive pests of pine trees (Pinaceae) in the Yunnan region of China, causing significant damage to shoots and trunks, leading to extensive pine tree mortality. This has had a negative impact on the sustainabilityequally and healthy development of local forestry. Currently, the primary methods of managing Tomicus are through the removal of damaged wood and chemical control, which not only requires significant manpower, materials, and financial resources, but also poses a threat to the ecological stability of the environment and has led to the development of resistance to pesticides by the pests. This article introduces an overview of research in the field of chemical ecological management of Tomicus minor (Hartig), T. yunnanensis Kirkendall & Faccoli, and T. brevipilosus (Eggers) in Yunnan Province. This includes summaries of research on informational chemicals, artificial attractants, and volatiles from both host and nonhost plants. The aim of this review is to provide a comprehensive overview of chemical ecological management methods for these beetles, thus assisting researchers and research institutions in their efforts to provide for sustainability of our environmental resources.
{"title":"Research Progress on Chemical Ecological Management of Three Tomicus Species (Coleoptera: Scolytidae) in Yunnan Province of China1","authors":"Junhui Wang, Weizhong Gao, Hongzhen Cai, Jun Teng","doi":"10.18474/jes24-22","DOIUrl":"https://doi.org/10.18474/jes24-22","url":null,"abstract":"\u0000 Bark beetles in the genus Tomicus (Latreille) (Coleoptera: Scolytidae) are the most destructive pests of pine trees (Pinaceae) in the Yunnan region of China, causing significant damage to shoots and trunks, leading to extensive pine tree mortality. This has had a negative impact on the sustainabilityequally and healthy development of local forestry. Currently, the primary methods of managing Tomicus are through the removal of damaged wood and chemical control, which not only requires significant manpower, materials, and financial resources, but also poses a threat to the ecological stability of the environment and has led to the development of resistance to pesticides by the pests. This article introduces an overview of research in the field of chemical ecological management of Tomicus minor (Hartig), T. yunnanensis Kirkendall & Faccoli, and T. brevipilosus (Eggers) in Yunnan Province. This includes summaries of research on informational chemicals, artificial attractants, and volatiles from both host and nonhost plants. The aim of this review is to provide a comprehensive overview of chemical ecological management methods for these beetles, thus assisting researchers and research institutions in their efforts to provide for sustainability of our environmental resources.","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141799389","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}
Utilizing essential oils extracted from specific herbal plants offers an intriguing alternative to synthetic insecticides, which are known for their harmful effects on both consumers and the environment, in preventing the devastation caused by the sawtoothed grain beetle, Oryzaephilus surinamensis L. (Coleoptera: Silvanidae). This study aimed to explore the chemical composition and insecticidal activities of essential oil derived from Syzygium aromaticum (L.) Merrill & L.M. Perry against adults of O. surinamensis. The research involved assessing the chemical compound of the essential oil from the flower buds of S. aromaticum, evaluating its fumigant toxicity and its repellent effect on O. surinamensis adults through vapor-phase testing conducted in laboratory conditions at 30°C ± 5°C and relative humidity of 70% ± 5%. The experimental design used a completely randomized design with four replications and six concentrations (0, 10, 20, 30, 40, and 50 μl/l of air). A total of nine chemical constituents was identified, with eugenol (90.15%) emerging as the primary compound in S. aromaticum essential oil. The fumigation toxicity (50% lethal concentration) assessments on adult O. surinamensis at 24, 48, and 72 h revealed values of 9.70, 6.58, and 4.37 μl/l of air, respectively. Over the 24- to 120-h test period, the application of S. aromaticum essential oil at 50 μl/l of air resulted in the highest adult mortality among O. surinamensis. Notably, at a concentration of 40 μl/l of air, the essential oil of S. aromaticum demonstrated a fumigation efficiency of 90–100% at both 24 and 72 h, showing no significant difference compared with a concentration 50 μl/l of air. These findings highlight the potential of S. aromaticum essential oil as an effective insecticide for controlling O. surinamensis populations in agricultural storage.
{"title":"Chemical Composition and Insecticidal Activity of Essential Oil from Syzygium aromaticum (Myrtaceae) against the Sawtoothed Grain Beetle Oryzaephilus surinamensis (Coleoptera: Silvanidae)1","authors":"R. Wanna, Benjapon Kunlanit, Darika Bunphan, Phirayot Khaengkhan, Parinda Khaengkhan, Hakan Bozdoğan","doi":"10.18474/jes24-33","DOIUrl":"https://doi.org/10.18474/jes24-33","url":null,"abstract":"\u0000 Utilizing essential oils extracted from specific herbal plants offers an intriguing alternative to synthetic insecticides, which are known for their harmful effects on both consumers and the environment, in preventing the devastation caused by the sawtoothed grain beetle, Oryzaephilus surinamensis L. (Coleoptera: Silvanidae). This study aimed to explore the chemical composition and insecticidal activities of essential oil derived from Syzygium aromaticum (L.) Merrill & L.M. Perry against adults of O. surinamensis. The research involved assessing the chemical compound of the essential oil from the flower buds of S. aromaticum, evaluating its fumigant toxicity and its repellent effect on O. surinamensis adults through vapor-phase testing conducted in laboratory conditions at 30°C ± 5°C and relative humidity of 70% ± 5%. The experimental design used a completely randomized design with four replications and six concentrations (0, 10, 20, 30, 40, and 50 μl/l of air). A total of nine chemical constituents was identified, with eugenol (90.15%) emerging as the primary compound in S. aromaticum essential oil. The fumigation toxicity (50% lethal concentration) assessments on adult O. surinamensis at 24, 48, and 72 h revealed values of 9.70, 6.58, and 4.37 μl/l of air, respectively. Over the 24- to 120-h test period, the application of S. aromaticum essential oil at 50 μl/l of air resulted in the highest adult mortality among O. surinamensis. Notably, at a concentration of 40 μl/l of air, the essential oil of S. aromaticum demonstrated a fumigation efficiency of 90–100% at both 24 and 72 h, showing no significant difference compared with a concentration 50 μl/l of air. These findings highlight the potential of S. aromaticum essential oil as an effective insecticide for controlling O. surinamensis populations in agricultural storage.","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141801112","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}
Roshani S. Acharya, Joan Burke, Neelendra K. Joshi
{"title":"Assessing Pollinator Seed Mix Plantings for the Presence of Undesirable Plant Species in the Livestock Pasture System1","authors":"Roshani S. Acharya, Joan Burke, Neelendra K. Joshi","doi":"10.18474/jes23-56","DOIUrl":"https://doi.org/10.18474/jes23-56","url":null,"abstract":"","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141346164","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}
Rhodesgrass mealybug, Antonina graminis Maskell (Hemiptera: Pseudococcidae), is an important pest on golf course putting greens. Antonina graminis feeding causes extensive yellowing and browning that causes turfgrass mortality. Lightweight rolling and sand topdressing are standard cultural practices on the golf course; however, it is unclear whether they can reduce A. graminis densities and provide additional suppression when combined with insecticide. Thus, the objectives of the study were to determine the effects of (a) lightweight rolling and sand topdressing and (b) combining these practices with a systemic insecticide, thiamethoxam, on A. graminis densities on golf course putting greens. In 2021 and 2022, experiments were conducted in a split-plot design where lightweight rolling was the main plot treatment and sand topdressing, insecticide, sand topdressing + insecticide, and nontreated were subplot treatments. The numbers of A. graminis were not significantly affected by rolling treatment in the 2021 and 2022 experiments. Similarly, the sand topdressing alone had no significant effect on the A. graminis densities on the putting greens. The numbers of A. graminis were significantly lower for the insecticide (thiamethoxam) and combination of sand topdressing + insecticide treatment than for the nontreated subplot.
{"title":"Effects of Lightweight Rolling, Sand Topdressing, and Insecticide on the Rhodesgrass Mealybug (Hemiptera: Pseudococcidae) on Golf Course Putting Greens1","authors":"Robert M Wolverton, S. V. Joseph","doi":"10.18474/jes24-07","DOIUrl":"https://doi.org/10.18474/jes24-07","url":null,"abstract":"\u0000 Rhodesgrass mealybug, Antonina graminis Maskell (Hemiptera: Pseudococcidae), is an important pest on golf course putting greens. Antonina graminis feeding causes extensive yellowing and browning that causes turfgrass mortality. Lightweight rolling and sand topdressing are standard cultural practices on the golf course; however, it is unclear whether they can reduce A. graminis densities and provide additional suppression when combined with insecticide. Thus, the objectives of the study were to determine the effects of (a) lightweight rolling and sand topdressing and (b) combining these practices with a systemic insecticide, thiamethoxam, on A. graminis densities on golf course putting greens. In 2021 and 2022, experiments were conducted in a split-plot design where lightweight rolling was the main plot treatment and sand topdressing, insecticide, sand topdressing + insecticide, and nontreated were subplot treatments. The numbers of A. graminis were not significantly affected by rolling treatment in the 2021 and 2022 experiments. Similarly, the sand topdressing alone had no significant effect on the A. graminis densities on the putting greens. The numbers of A. graminis were significantly lower for the insecticide (thiamethoxam) and combination of sand topdressing + insecticide treatment than for the nontreated subplot.","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141383315","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}
Xudong Zha, Ran Chen, Zhanyun Song, Chengcai Liu, Jashenko Roman, Rong Ji
We conducted a case study on the severe damage caused by the transboundary migration of Locusta migratoria (L.) (Orthoptera: Acrididae) in the Tacheng Prefecture and the Altay Prefecture at the China–Kazakhstan border by examining the effects of terrain on their landing behaviors. Based on the time and location of the locusts’ mass landings, we used mesoscale weather research and forecasting models to test the sensitivity (horizontal wind, vertical wind, temperature, and rainfall) of the terrain and simulate the effects of different terrain heights (terrain leveling, half terrain height, and actual terrain height) on landing. The results showed that changes in the regional terrain of the Tacheng and Altay prefectures did not enhance the vertical airflow over the landing area. With an elevation of the terrain, the precipitation intensity in the landing area of locusts also did not increase. We did detect a direct impact of wind direction and changes in temperature in the regional terrain on the landing process of L. m. migratoria. With an increase in terrain altitude, the wind direction over the landing area changed and the temperature decreased, resulting in large-scale forced landing. The results of this study have important value in predicting and forecasting the arrival of migratory locusts.
{"title":"Effects of Terrain on the Landing of Locusta migratoria migratoria (Orthoptera: Acrididae) at the China–Kazakhstan Border1","authors":"Xudong Zha, Ran Chen, Zhanyun Song, Chengcai Liu, Jashenko Roman, Rong Ji","doi":"10.18474/jes23-77","DOIUrl":"https://doi.org/10.18474/jes23-77","url":null,"abstract":"\u0000 We conducted a case study on the severe damage caused by the transboundary migration of Locusta migratoria (L.) (Orthoptera: Acrididae) in the Tacheng Prefecture and the Altay Prefecture at the China–Kazakhstan border by examining the effects of terrain on their landing behaviors. Based on the time and location of the locusts’ mass landings, we used mesoscale weather research and forecasting models to test the sensitivity (horizontal wind, vertical wind, temperature, and rainfall) of the terrain and simulate the effects of different terrain heights (terrain leveling, half terrain height, and actual terrain height) on landing. The results showed that changes in the regional terrain of the Tacheng and Altay prefectures did not enhance the vertical airflow over the landing area. With an elevation of the terrain, the precipitation intensity in the landing area of locusts also did not increase. We did detect a direct impact of wind direction and changes in temperature in the regional terrain on the landing process of L. m. migratoria. With an increase in terrain altitude, the wind direction over the landing area changed and the temperature decreased, resulting in large-scale forced landing. The results of this study have important value in predicting and forecasting the arrival of migratory locusts.","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141384224","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}
Héctor Guillermo Flores-Cortez, Rapucel T. Q. Heinz-Castro, Ma. Teresa de Jesús Segura-Martínez, J. C. Chacón-Hernández, Rafael Delgado-Martínez, A. Hernández-Juárez
Mexico is the leader in avocado (Persea americana Miller [Lauraceae]) production, with the United States being the principal consumer of avocados produced there. The avocado crop is susceptible to attacks by insect and mite pests, including the avocado brown mite, Oligonychus punicae (Hirst) (Acari: Tetranychidae), which is a serious economic pest of the crop in Mexico. This study evaluated the effects of different concentrations (0.1, 0.5, 1, 5, 10, 15, and 20% [v/v]) of the ethanolic extract from Moringa oleifera Lamarck (Moringaceae) leaves against O. punicae eggs and its residual effect on the density of larvae and nymphs emerging from treated eggs. Egg mortality ranged from 0.0 at the 0.1% concentration to 70.48% at the 20% concentration, compared with the control group. Egg mortality increased as extract concentrations increased. The density of larvae and nymphs that emerged from the treated eggs was significantly lower than the density in the control, indicating that both the number of living larvae and nymphs responded to extract concentration. Our results support the suggestion that the ethanolic extract of M. oleifera leaf has ovicidal and residual activity against O. punicae and can be incorporated into an integrated mite management program to control avocado brown mite populations. Further studies are needed to assess the efficiency and efficacy of M. oleifera extract against arthropod pests and natural enemies under greenhouse and field conditions.
墨西哥是牛油果（Persea americana Miller [Lauraceae]）生产大国，美国是墨西哥生产的牛油果的主要消费国。牛油果作物很容易受到昆虫和螨类害虫的侵袭，其中包括牛油果褐螨 Oligonychus punicae (Hirst) (Acari: Tetranychidae)，它是墨西哥牛油果作物的一种严重经济害虫。本研究评估了不同浓度（0.1、0.5、1、5、10、15 和 20% [v/v]）的 Moringa oleifera Lamarck（桑科）叶乙醇提取物对 O. punicae 卵的影响及其对处理后卵中幼虫和若虫密度的残留影响。与对照组相比，0.1%浓度的卵死亡率为 0.0%，20%浓度的卵死亡率为 70.48%。随着提取物浓度的增加，卵的死亡率也在增加。从处理过的卵中钻出的幼虫和若虫的密度明显低于对照组，这表明活的幼虫和若虫的数量都对提取物浓度有反应。我们的研究结果表明，油橄榄叶乙醇提取物对 O. punicae 具有杀卵和残留活性，可纳入螨虫综合治理计划，控制鳄梨褐螨的数量。还需要进一步研究，以评估油橄榄叶乙醇提取物在温室和田间条件下对节肢害虫和天敌的效率和效力。
{"title":"Ovicidal Effect of the Ethanolic Extract of Moringa oleifera Leaf on Oligonychus punicae (Trombidiformes: Tetranychidae) Eggs1","authors":"Héctor Guillermo Flores-Cortez, Rapucel T. Q. Heinz-Castro, Ma. Teresa de Jesús Segura-Martínez, J. C. Chacón-Hernández, Rafael Delgado-Martínez, A. Hernández-Juárez","doi":"10.18474/jes23-108","DOIUrl":"https://doi.org/10.18474/jes23-108","url":null,"abstract":"\u0000 Mexico is the leader in avocado (Persea americana Miller [Lauraceae]) production, with the United States being the principal consumer of avocados produced there. The avocado crop is susceptible to attacks by insect and mite pests, including the avocado brown mite, Oligonychus punicae (Hirst) (Acari: Tetranychidae), which is a serious economic pest of the crop in Mexico. This study evaluated the effects of different concentrations (0.1, 0.5, 1, 5, 10, 15, and 20% [v/v]) of the ethanolic extract from Moringa oleifera Lamarck (Moringaceae) leaves against O. punicae eggs and its residual effect on the density of larvae and nymphs emerging from treated eggs. Egg mortality ranged from 0.0 at the 0.1% concentration to 70.48% at the 20% concentration, compared with the control group. Egg mortality increased as extract concentrations increased. The density of larvae and nymphs that emerged from the treated eggs was significantly lower than the density in the control, indicating that both the number of living larvae and nymphs responded to extract concentration. Our results support the suggestion that the ethanolic extract of M. oleifera leaf has ovicidal and residual activity against O. punicae and can be incorporated into an integrated mite management program to control avocado brown mite populations. Further studies are needed to assess the efficiency and efficacy of M. oleifera extract against arthropod pests and natural enemies under greenhouse and field conditions.","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141381584","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}
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