Journal of Entomological Science最新文献_第2页

Simple Insecticide Bean-Dip Bioassay Shows Pyrethroid Susceptibility of Helicoverpa zea (Lepidoptera: Noctuidae) Populations in Virginia Varies across Locations and Years1 简单的杀虫剂浸豆生物测定显示，弗吉尼亚州不同地区和不同年份的玉米螟（鳞翅目：夜蛾科）种群对拟除虫菊酯的敏感性各不相同1

IF 0.9 4区农林科学

Journal of Entomological Science Pub Date : 2023-11-20 DOI: 10.18474/jes23-23

K.L. Sutton, T. Kuhar, S.L. Rideout, S. Taylor, M.S. Reiter, A. D. Del Pozo-Valdivia, D. Reisig, K. McIntyre

{"title":"Simple Insecticide Bean-Dip Bioassay Shows Pyrethroid Susceptibility of Helicoverpa zea (Lepidoptera: Noctuidae) Populations in Virginia Varies across Locations and Years1","authors":"K.L. Sutton, T. Kuhar, S.L. Rideout, S. Taylor, M.S. Reiter, A. D. Del Pozo-Valdivia, D. Reisig, K. McIntyre","doi":"10.18474/jes23-23","DOIUrl":"https://doi.org/10.18474/jes23-23","url":null,"abstract":"Corn earworm, Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae), is a major insect pest of many agricultural crops in Virginia. Pyrethroids have been the major insecticide class used to control the pest for decades; however, H. zea resistance to pyrethroids has been widely documented in the southeastern and midwestern United States. To assess the pyrethroid susceptibility of H. zea in Virginia, we collected larval populations from the same five locations in 2021 and 2022 and used a quick end user–friendly bioassay to assess survival of larvae after feeding on insecticide-dipped edamame [Glycine max (L.) Merrill] pods. Pyrethroid efficacy varied between years and locations, with some 2021 H. zea populations showing reduced pyrethroid susceptibility, but not in 2022. This variability is most likely influenced by factors such as overwintering survivability in Virginia. Thus, the need for continued annual monitoring is important to track efficacy trends and grower recommendations. The simple bean-dip bioassay could be used as an efficient monitoring tool in the future, with pyrethroid susceptibility determined in 48 h from field collection.","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":"58 7","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139256403","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}

引用次数: 0

Preliminary Data on Presence of Ophraella communa (Coleoptera: Chrysomelidae) in the Southeast of Bosnia and Herzegovina1 波斯尼亚和黑塞哥维那东南部存在 Ophraella communa（鞘翅目：蝶形目）的初步数据1

IF 0.9 4区农林科学

Journal of Entomological Science Pub Date : 2023-11-20 DOI: 10.18474/jes23-40

Fejzo Bašić, Anis Hasanbegović, N. Šuta, Josip Jurković, E. Korjenić, Sanel Haseljić, S. Lelo

引用次数: 0

Direct Effect of Cannibalism and Intraguild Predation in Menochilus sexmaculatus (Coleoptera: Coccinellidae)1 Menochilus sexmaculatus (Coleoptera: Coccinellidae)1 的食肉和群内捕食的直接影响

IF 0.9 4区农林科学

Journal of Entomological Science Pub Date : 2023-11-20 DOI: 10.18474/jes23-08

Xing-lin Yu, Yu-Tong Zhou, Yi Feng, Bao-Li Qiu

{"title":"Direct Effect of Cannibalism and Intraguild Predation in Menochilus sexmaculatus (Coleoptera: Coccinellidae)1","authors":"Xing-lin Yu, Yu-Tong Zhou, Yi Feng, Bao-Li Qiu","doi":"10.18474/jes23-08","DOIUrl":"https://doi.org/10.18474/jes23-08","url":null,"abstract":"Menochilus sexmaculatusF. (Coleoptera: Coccinellidae) is a generalist predator with potential as a biological control candidate for suppressing many insect pests, including the cotton mealybug, Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae). However, the potential control capacity of M. sexmaculatus on P. solenopsis may depend not only on its fitness and predatory efficacy, but also on the consequences of both conspecific and heterospecific interactions with other individuals that share the same resource. This study investigated the aggressiveness and vulnerability of different life stages of M. sexmaculatus when encountering various stages of M. sexmaculatus or Harmonia axyridis (Pallas). The results showed that M. sexmaculatus could act as predator and/or prey with the presence of conspecific and heterospecific ladybird beetles. The success of predation is affected by the ladybird beetle life stage and, in most cases, young stages of the ladybird beetles were most susceptible to relatively older life stages of ladybird beetles. Predation between M. sexmaculatus/H. axyridis larvae of the same developmental stage was always asymmetric, favoring H. axyridis. Moreover, M. sexmaculatus exhibited intensive aggressiveness toward their own species over heterospecific individuals, but was more vulnerable to H. axyridis than to M. sexmaculatus individuals. Overall, H. axyridis could negatively affect the population densities of M. sexmaculatus by its high aggressiveness and low vulnerability. However, because our study was conducted in an oversimplified and confined area, more research should be conducted under more realistic conditions to explore the impacts of H. axyridis on the population dynamics of M. sexmaculatus.","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":"23 3","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139257240","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}

引用次数: 0

Mortality in Interspecific Hybrids of Nasonia vitripennis and Nasonia giraulti (Hymenoptera: Pteromalidae)1 玻璃翅小蜂与giraulti小蜂种间杂交种的死亡率(膜翅目:小蜂科

IF 0.9 4区农林科学

Journal of Entomological Science Pub Date : 2023-09-07 DOI: 10.18474/jes23-35

Bonnie A. Cobb, Joshua D. Gibson

{"title":"Mortality in Interspecific Hybrids of Nasonia vitripennis and Nasonia giraulti (Hymenoptera: Pteromalidae)1","authors":"Bonnie A. Cobb, Joshua D. Gibson","doi":"10.18474/jes23-35","DOIUrl":"https://doi.org/10.18474/jes23-35","url":null,"abstract":"\u0000 Barriers to gene flow can result in populations evolving into separate species, and understanding how these barriers evolve is a key step in understanding the process of speciation. This study investigates a major barrier to gene flow, mortality during development, of two parasitoid wasp species, Nasonia vitripennis Walker and N. giraulti Darling. Previous work has demonstrated high mortality in haploid hybrid males of these species and has shown potential rescue from this mortality in diploid hybrid females through backcrossing. However, this previous work did not directly measure egg clutch sizes in hybrids and also did not account for male eggs in these clutches. Here, we measure female-only egg and adult clutch sizes of both parent species and F2 hybrids, as well as F2 male egg and adult clutch sizes, in order to determine the impact of backcrossing on mortality in these hybrids. We find significant egg-to-adult mortality in diploid F2 hybrid females with a N. giraulti cytotype when backcrossed to N. vitripennis males; yet, these hybrids also experience less mortality than haploid F2 males. These results confirm the mortality and rescue in these F2 hybrid females and indicate that there is likely a combination of nuclear-cytoplasmic and nuclear-nuclear incompatibilities in these hybrids that lead to this mortality. This work provides a foundation for future studies to investigate the genetic basis of this mortality.","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42857435","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}

引用次数: 0

Virulence and Reproduction of Entomopathogenic Nematodes Isolated from a Single Mexican Locality1 从墨西哥单一地区分离的昆虫病原线虫的毒力和繁殖1

IF 0.9 4区农林科学

Journal of Entomological Science Pub Date : 2023-09-07 DOI: 10.18474/jes22-72

Diego Treviño-Cueto, Eduardo Hidalgo Mayorga, Sergei Subbotin, Melchor Cepeda Siller, S. Sanchez-Peña

{"title":"Virulence and Reproduction of Entomopathogenic Nematodes Isolated from a Single Mexican Locality1","authors":"Diego Treviño-Cueto, Eduardo Hidalgo Mayorga, Sergei Subbotin, Melchor Cepeda Siller, S. Sanchez-Peña","doi":"10.18474/jes22-72","DOIUrl":"https://doi.org/10.18474/jes22-72","url":null,"abstract":"\u0000 Entomopathogenic nematodes (EPNs) are important biological control agents of insect pests. Strains or isolates obtained in specific regions and utilized in situ might contribute to the success of EPNs, since they are adapted to local abiotic conditions. We isolated and identified three isolates each of Heterorhabditis bacteriophora Poinar and Steinernema carpocapsae (Weiser) from soils at Saltillo, Coahuila State, Mexico. These six isolates were bioassayed against larvae of Tenebrio molitor L., using six concentrations of infective juveniles (IJs) per larva (0, 10, 25, 50, 100, 200). EPN-induced mortality of the isolates ranged from 15.2% to 100%. The designated M5 isolate of S. carpocapsae caused 100% mortality after 72 h at concentrations ≥25 IJs/larva with a median lethal concentration of 4.99 IJs/larva. Comparison of mortality levels induced at the same concentration of the six EPN isolates indicated that the Steinernema isolates, in general, induced higher mortality levels than the Heterorhabditis isolates. IJ production in T. molitor larvae also was greatest with the M5 isolate of S. carpocapsae following exposure of larvae to a concentration of 100 IJs/larva with a mean of 17,320 IJs/larva. Based on induced mortality and IJ production, the S. carpocapsae M5 isolate appears to be a viable candidate for further study and possible development for use in insect pest management programs. This study indicates that naturally coexisting local nematode isolates possess different attributes critical for their use as biocontrol agents.","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47289458","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}

引用次数: 0

Pathogenicity of Heterorhabditis bacteriophora in Ultraviolet Light–Irradiated Agar Suspension on Spodoptera frugiperda (Lepidoptera: Noctuidae) Larvae1 紫外光辐照琼脂悬浮液中嗜杆菌异habditis对夜蛾夜蛾幼虫的致病性研究

IF 0.9 4区农林科学

Journal of Entomological Science Pub Date : 2023-09-07 DOI: 10.18474/jes22-48

Edgar D. Pérez Tesén, Jennifher E. Rodas Adrianzén, Alexander Chávez Cabrera, María E. Neira de Perales

{"title":"Pathogenicity of Heterorhabditis bacteriophora in Ultraviolet Light–Irradiated Agar Suspension on Spodoptera frugiperda (Lepidoptera: Noctuidae) Larvae1","authors":"Edgar D. Pérez Tesén, Jennifher E. Rodas Adrianzén, Alexander Chávez Cabrera, María E. Neira de Perales","doi":"10.18474/jes22-48","DOIUrl":"https://doi.org/10.18474/jes22-48","url":null,"abstract":"\u0000 Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) is an economically important pest of variety of crops, including maize (Zea mays L.), rice (Oryza sativa L.), and cotton (Gossypium spp.). Conventional chemical insecticides are usually used for management of this pest; however, a viable alternative is the use of microbial agents or their biological products, such as entomopathogenic nematodes. Their efficacy, however, is affected by abiotic conditions including ultraviolet (UV) light and desiccation. It is therefore necessary to develop formulations that preserve or extend the viability of the agent or product while facilitating ease of application. This laboratory study was conducted to determine the pathogenicity of the nematode Heterorhabditis bacteriophora (Poinar) against S. frugiperda third-instar larvae. Infective juveniles (IJs) of the nematode were tested at a concentration of 350 IJs/ml in two substrates (water and 0.1% [w/v] agar suspension) with four periods of exposure (0, 5, 10 and 15 min) to UV radiation at 253.7 nm. Each of the eight treatments included 40 larvae, with each treatment replicated three times in a completely randomized design (two factors of type of medium and UV exposure time). We determined that the 0.1% (w/v) agar suspension, compared with the water substrate, protected the IJs from harmful UV light and thus improved the survival and pathogenicity of the IJs against third-instar S. frugiperda.","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67939899","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}

引用次数: 0

Cloning and Expression Analysis of AzanOBP7, a Minus-C Odorant-Binding Protein Gene, from Agrilus zanthoxylumi (Coleoptera: Buprestidae)1 花椒（Coleoptera：Buprestidae）1中薄荷C气味结合蛋白基因AzanOBP7的克隆与表达分析

IF 0.9 4区农林科学

Journal of Entomological Science Pub Date : 2023-09-07 DOI: 10.18474/jes22-68

Xiao-Jin Gao, Li Guo, Na Jiang, Yu Qi, Qin-Yao Jin, Shou-An Xie, Shu-Jie Iv

{"title":"Cloning and Expression Analysis of AzanOBP7, a Minus-C Odorant-Binding Protein Gene, from Agrilus zanthoxylumi (Coleoptera: Buprestidae)1","authors":"Xiao-Jin Gao, Li Guo, Na Jiang, Yu Qi, Qin-Yao Jin, Shou-An Xie, Shu-Jie Iv","doi":"10.18474/jes22-68","DOIUrl":"https://doi.org/10.18474/jes22-68","url":null,"abstract":"\u0000 Odorant-binding proteins (OBPs) play an important role in specific recognition, binding, and transportation of odorants. In this study, the full-length complementary DNA (cDNA) sequence of AzanOBP7, a Minus-C OBP gene, from Agrilus zanthoxylumi Li Ming Lou (Coleoptera: Buprestidae) was cloned by rapid amplification of cDNA ends based on transcriptome data. The bioinformatic analysis showed that AzanOBP7 contains a 450-bp open reading frame encoding a 149-residue polypeptide, with a molecular mass of 17.176 kDa. It was predicted to be a nontransmembrane protein with an 18–amino acid signal peptide at the N terminus. The predicted three-dimensional structure of AzanOBP7 by AphadFold2 possesses seven α helices and two disulfide bridges. The multiple sequence alignment and phylogenetic tree revealed that AzanOBP7 reached the highest identity (94.70%) with Agrilus mali Matsumura (Coleoptera: Buprestidae) AmalOBP11; they also were closely aligned in a clade. Quantitative real-time polymerase chain reaction showed that AzanOBP7 exhibited the highest expression level in the abdomen of adult females. In the thorax, the expression level in adult males was significantly higher than that in other aged males (P < 0.01). Our study offers a theoretical foundation for further study on the functional characteristics of A. zanthoxylumi OBPs.","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47397789","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}

引用次数: 0

Uptake and Retention of Imidacloprid and Cyantraniliprole in Cotton for the Control of Bemisia tabaci (Hemiptera: Aleyrodidae)1 吡虫啉和氰虫腈在棉花中的吸收和滞留防治烟粉虱（半翅目：Aleyrodidae）1

IF 0.9 4区农林科学

Journal of Entomological Science Pub Date : 2023-09-07 DOI: 10.18474/jes22-77

Jermaine D. Perier, A. Lagalante, Elizabeth P. McCarty, Alvin M. Simmons, David G. Riley

{"title":"Uptake and Retention of Imidacloprid and Cyantraniliprole in Cotton for the Control of Bemisia tabaci (Hemiptera: Aleyrodidae)1","authors":"Jermaine D. Perier, A. Lagalante, Elizabeth P. McCarty, Alvin M. Simmons, David G. Riley","doi":"10.18474/jes22-77","DOIUrl":"https://doi.org/10.18474/jes22-77","url":null,"abstract":"\u0000 Plant tissue bioassays are a standard approach for bioassaying insects such as the sweetpotato whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), an insect that specializes in systemic feeding on the phloem in leaves by using a piercing-sucking mouthpart apparatus. Systemic insecticides remain the most effective approach to whitefly management; however, little work has been done to quantify the amount of insecticide active ingredient that a species is exposed to when feeding. This study was conducted to estimate the imidacloprid and cyantraniliprole concentrations present in cotton (Gossypium hirsutum L.) leaves 24 h after a root drench for systemic toxicological bioassays. Insecticide active-ingredient quantification involved liquid chromatography–tandem mass spectrometry. Comparable concentration responses also were conducted to indicate the mortality of the sweetpotato whitefly at the tested concentrations. The results indicated significant active-ingredient retention with higher concentrations of insecticide treatments, which corresponded with higher sweetpotato whitefly mortality. Specifically, for imidacloprid and cyantraniliprole, the average slopes and intercepts of the log parts per billion of leaf tissue concentration to milligrams of active ingredient per liter of treatment solution were y = 4.08 x + 0.83 and y = 6.22 x + 0.47, respectively. These formulae estimate leaf tissue concentrations that can be linked to insect insecticide exposure in the leaves, with 50–73% of the overall variability explained. Significant correlations also were observed between the root drench concentrations, leaf tissue concentrations, and sweetpotato whitefly mortality.","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44776400","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}

引用次数: 0

New Hosts, Distribution, and Color Trap Preferences of the Invasive Thrips Scirtothrips dorsalis (Thysanoptera: Thripidae) in Mexico1 墨西哥入侵蓟马背蓟马的新寄主、分布和色诱偏好[j]

IF 0.9 4区农林科学

Journal of Entomological Science Pub Date : 2023-09-07 DOI: 10.18474/jes23-11

Daniel López-Lima, M. A. Tejeda-Reyes, Rafael Diego Rodríguez-Málaga, Everardo López-Bautista, A. Salinas-Castro, C. Illescas-Riquelme

{"title":"New Hosts, Distribution, and Color Trap Preferences of the Invasive Thrips Scirtothrips dorsalis (Thysanoptera: Thripidae) in Mexico1","authors":"Daniel López-Lima, M. A. Tejeda-Reyes, Rafael Diego Rodríguez-Málaga, Everardo López-Bautista, A. Salinas-Castro, C. Illescas-Riquelme","doi":"10.18474/jes23-11","DOIUrl":"https://doi.org/10.18474/jes23-11","url":null,"abstract":"\u0000 Scirtothrips dorsalis Hood (Thysanoptera: Thripidae) is an insect of Asian origin and is currently distributed in several countries around the world. It has highly polyphagous habits and has been reported as a primary pest of different fruit, horticultural, and ornamental crops. This species was reported in Mexico in 2020, however, due to its invasive nature and its rapid adaptation to new ecosystems, it is probably present in other regions of the country. The lack of information on this pest has resulted in misidentifications and misdiagnosis at the field level by phytosanitary technicians. In the present work, we found that S. dorsalis is distributed in the states of Veracruz, Sinaloa, Jalisco, and Michoacán in Mexico occupying sites with different climates (warm and temperate) and elevations from 6 to 1,721 m above sea level. Plant reproductive hosts were blackberry (Rubus sp.), blueberry (Vaccinium sp.), Persian lime (Citrus latifolia Tanaka), mango (Mangifera indica L.), and pear (Pyrus communis L.). Through an evaluation of the response of adults toward chromatic traps, we found that this species greatly prefers yellow (×5.40) compared with blue color. More studies are needed on detection and control measures in order to reduce the distribution and economic impact caused by this insect pest in Mexico.","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44920985","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}

引用次数: 0

Contact Toxicity of an Essential Oil from Acorus calamus (Acoraceae) Rhizomes against Tetranychus urticae and Tetranychus macfarlanei (Acari: Tetranychidae) and Amblyseius longispinosus (Acari: Phytoseiidae)1 菖蒲（Acorus calamus）根状茎精油对二斑叶螨（Tetranychus urticae）、macfarlanei叶螨（Acari:Tetranychidae）和长棘安布利斯虫（Amblysius longisposus）（Acari:Phytoseidae）1的接触毒性

IF 0.9 4区农林科学

Journal of Entomological Science Pub Date : 2023-09-07 DOI: 10.18474/jes22-66

W. Auamcharoen, K. Janlaor

{"title":"Contact Toxicity of an Essential Oil from Acorus calamus (Acoraceae) Rhizomes against Tetranychus urticae and Tetranychus macfarlanei (Acari: Tetranychidae) and Amblyseius longispinosus (Acari: Phytoseiidae)1","authors":"W. Auamcharoen, K. Janlaor","doi":"10.18474/jes22-66","DOIUrl":"https://doi.org/10.18474/jes22-66","url":null,"abstract":"\u0000 The contact toxicity activity of an essential oil extracted from Acorus calamus (L.) (Acoraceae) was evaluated against the phytophagous spider mites Tetranychus urticae Koch and Tetranychus macfarlanei Baker & Pritchard (Acari: Tetranychidae) and the predatory mite Amblyseius longispinosus (Evans) (Acari: Phytoseiidae). Adult mortality 24 h following application of 5% (v/v) concentration of the essential oil exceeded 90% for T. urticae and T. macfarlanei. Application of 1.2–5% concentrations of the essential oil to mite eggs reduced egg viability, with 0–54% hatch of T. urticae eggs and 0% hatch of T. macfarlanei eggs 6 d following treatment. At 2.5%, the essential oil was toxic to A. longipinosus by residual contact toxicity (58% mortality) and direct contact toxicity (0% mortality). No eggs and 47.6 eggs of A. longispinosus were oviposited with residual contact toxicity and direct contact toxicity, respectively. The chemical constituents of the essential oil, as determined with gas chromatography–mass spectrometry, showed that camphor (41.07%) and 5,5-dimethyl-2-ethynylcyclopent-2-en-1-ol (27.96%) were the major chemical compounds of the essential oil. These results indicate that this essential oil extracted from fresh A. calamus rhizomes could prove useful in controlling T. urticae and T. macfarlanei. Our findings also showed that the essential oil had no deleterious effects against A. longispinosus by direct contact toxicity test; however, A. longispinosus consuming spider mite eggs treated with essential oil were negatively impacted.","PeriodicalId":15765,"journal":{"name":"Journal of Entomological Science","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49013620","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}

引用次数: 0