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  Subjects -> PSYCHOLOGY (Total: 983 journals)
Showing 601 - 174 of 174 Journals sorted alphabetically
New Ideas in Psychology     Hybrid Journal   (Followers: 5)
New School Psychology Bulletin     Open Access  
Nigerian Journal of Guidance and Counselling     Full-text available via subscription   (Followers: 2)
Nordic Psychology     Hybrid Journal  
O Que Nos Faz Pensar : Cadernos do Departamento de Filosofia da PUC-Rio     Open Access  
OA Autism     Open Access   (Followers: 7)
Occupational Health Science     Hybrid Journal  
Online Readings in Psychology and Culture     Open Access  
Open Journal of Medical Psychology     Open Access  
Open Mind     Open Access   (Followers: 1)
Open Neuroimaging Journal     Open Access  
Open Psychology Journal     Open Access  
Organisational and Social Dynamics: An International Journal of Psychoanalytic, Systemic and Group Relations Perspectives     Full-text available via subscription   (Followers: 7)
Organizational Psychology Review     Hybrid Journal   (Followers: 15)
Orientación y Sociedad : Revista Internacional e Interdisciplinaria de Orientación Vocacional Ocupacional     Open Access  
Paidéia (Ribeirão Preto)     Open Access  
Pain     Hybrid Journal   (Followers: 61)
Papeles del Psicólogo     Open Access  
Pastoral Psychology     Hybrid Journal   (Followers: 3)
Peace and Conflict : Journal of Peace Psychology     Full-text available via subscription   (Followers: 6)
Pensamiento Psicologico     Open Access  
Pensando Familias     Open Access  
Pensando Psicología     Open Access  
People and Animals : The International Journal of Research and Practice     Open Access  
Perception     Full-text available via subscription   (Followers: 16)
Perceptual and Motor Skills     Full-text available via subscription   (Followers: 8)
Persona     Open Access  
Persona : Jurnal Psikologi Indonesia     Open Access  
Persona Studies     Open Access  
Personality and Social Psychology Bulletin     Hybrid Journal   (Followers: 176)
Personality and Social Psychology Review     Hybrid Journal   (Followers: 52)
Personality Disorders: Theory, Research, and Treatment     Full-text available via subscription   (Followers: 19)
Personnel Assessment and Decisions     Open Access  
Personnel Psychology     Hybrid Journal   (Followers: 59)
Perspectives interdisciplinaires sur le travail et la santé     Open Access   (Followers: 3)
Perspectives on Behavior Science     Hybrid Journal   (Followers: 1)
Perspectives On Psychological Science     Hybrid Journal   (Followers: 43)
Perspectives Psy     Full-text available via subscription   (Followers: 1)
Phenomenology & Practice     Open Access   (Followers: 2)
Phenomenology and Mind     Open Access   (Followers: 3)
Phenomenology and the Cognitive Sciences     Hybrid Journal   (Followers: 4)
Philosophical Psychology     Hybrid Journal   (Followers: 20)
Philosophy, Psychiatry, & Psychology     Full-text available via subscription   (Followers: 11)
Physiology & Behavior     Hybrid Journal   (Followers: 14)
physiopraxis     Hybrid Journal  
PiD - Psychotherapie im Dialog     Hybrid Journal   (Followers: 1)
Poiésis     Open Access  
Policy Insights from the Behavioral and Brain Sciences     Full-text available via subscription   (Followers: 4)
Political Psychology     Hybrid Journal   (Followers: 41)
Porn Studies     Hybrid Journal   (Followers: 6)
Possibility Studies & Society     Hybrid Journal   (Followers: 2)
PPmP - Psychotherapie Psychosomatik Medizinische Psychologie     Hybrid Journal   (Followers: 1)
Practice Innovations     Full-text available via subscription  
Pragmatic Case Studies in Psychotherapy     Open Access   (Followers: 1)
Pratiques Psychologiques     Full-text available via subscription  
Praxis der Kinderpsychologie und Kinderpsychiatrie     Hybrid Journal  
Problems of Psychology in the 21st Century     Open Access  
Professional Psychology : Research and Practice     Full-text available via subscription   (Followers: 7)
Progress in Brain Research     Full-text available via subscription   (Followers: 3)
Psic : Revista de Psicologia da Vetor Editora     Open Access  
Psico     Open Access  
Psicoanalisi     Full-text available via subscription  
Psicobiettivo     Full-text available via subscription  
Psicoespacios     Open Access  
Psicogente     Open Access  
Psicol?gica Journal     Open Access  
Psicologia     Open Access  
Psicologia     Open Access  
Psicologia : Teoria e Pesquisa     Open Access  
Psicologia : Teoria e Prática     Open Access  
Psicologia da Educação     Open Access  
Psicologia della salute     Full-text available via subscription  
Psicología desde el Caribe     Open Access  
Psicologia di Comunità. Gruppi, ricerca-azione, modelli formativi     Full-text available via subscription  
Psicologia e Saber Social     Open Access   (Followers: 1)
Psicologia e Saúde em Debate     Open Access  
Psicologia em Pesquisa     Open Access  
Psicologia em Revista     Open Access  
Psicologia Ensino & Formação     Open Access  
Psicologia Hospitalar     Open Access  
Psicologia Iberoamericana     Open Access   (Followers: 1)
Psicologia para América Latina     Open Access  
Psicologia USP     Open Access   (Followers: 1)
Psicología, Conocimiento y Sociedad     Open Access  
Psicologia, Saúde e Doenças     Open Access  
Psicooncología     Open Access   (Followers: 1)
Psicoperspectivas     Open Access  
Psicoterapia e Scienze Umane     Full-text available via subscription  
Psikis : Jurnal Psikologi Islami     Open Access  
Psikohumaniora : Jurnal Penelitian Psikologi     Open Access  
Psisula : Prosiding Berkala Psikologi     Open Access  
Psocial : Revista de Investigación en Psicología Social     Open Access  
Psych     Open Access   (Followers: 1)
PsyCh Journal     Hybrid Journal   (Followers: 2)
PSYCH up2date     Hybrid Journal   (Followers: 2)
Psych. Pflege Heute     Hybrid Journal   (Followers: 1)
Psychê     Open Access  
Psyche: A Journal of Entomology     Open Access   (Followers: 6)
Psychiatrie et violence     Open Access  
Psychiatrie und Psychotherapie up2date     Hybrid Journal   (Followers: 1)
Psychiatrische Praxis     Hybrid Journal   (Followers: 1)
Psychiatry, Psychology and Law     Hybrid Journal   (Followers: 386)
Psychoanalysis and History     Hybrid Journal   (Followers: 3)
Psychoanalysis, Self and Context     Hybrid Journal   (Followers: 5)
Psychoanalytic Dialogues: The International Journal of Relational Perspectives     Hybrid Journal   (Followers: 9)
Psychoanalytic Inquiry: A Topical Journal for Mental Health Professionals     Hybrid Journal   (Followers: 7)
Psychoanalytic Perspectives     Hybrid Journal   (Followers: 7)
Psychoanalytic Psychology     Full-text available via subscription   (Followers: 3)
Psychoanalytic Psychotherapy     Hybrid Journal   (Followers: 14)
Psychoanalytic Review The     Full-text available via subscription   (Followers: 7)
Psychoanalytic Social Work     Hybrid Journal   (Followers: 12)
Psychoanalytic Study of the Child     Hybrid Journal   (Followers: 1)
Psychodynamic Practice: Individuals, Groups and Organisations     Hybrid Journal   (Followers: 6)
Psychodynamic Psychiatry     Full-text available via subscription   (Followers: 8)
Psychogeriatrics     Hybrid Journal   (Followers: 1)
Psychologia : Advances de la Disciplina     Open Access  
Psychologica     Open Access  
Psychologica Belgica     Open Access   (Followers: 1)
Psychological Assessment     Full-text available via subscription   (Followers: 13)
Psychological Bulletin     Full-text available via subscription   (Followers: 242)
Psychological Medicine     Hybrid Journal   (Followers: 20)
Psychological Perspectives: A Semiannual Journal of Jungian Thought     Hybrid Journal   (Followers: 1)
Psychological Reports     Hybrid Journal  
Psychological Research     Hybrid Journal   (Followers: 11)
Psychological Research on Urban Society     Open Access  
Psychological Review     Full-text available via subscription   (Followers: 221)
Psychological Science     Hybrid Journal   (Followers: 319)
Psychological Science and Education     Open Access   (Followers: 1)
Psychological Science and Education psyedu.ru     Open Access   (Followers: 1)
Psychological Science In the Public Interest     Hybrid Journal   (Followers: 18)
Psychological Studies     Hybrid Journal   (Followers: 3)
Psychological Thought     Open Access   (Followers: 2)
Psychological Trauma: Theory, Research, Practice, and Policy     Full-text available via subscription   (Followers: 21)
Psychologie Clinique     Full-text available via subscription  
Psychologie du Travail et des Organisations     Hybrid Journal  
Psychologie Française     Full-text available via subscription  
Psychologie in Erziehung und Unterricht     Full-text available via subscription   (Followers: 2)
Psychologische Rundschau     Hybrid Journal   (Followers: 2)
Psychology     Open Access   (Followers: 6)
Psychology     Open Access  
Psychology & Health     Hybrid Journal   (Followers: 33)
Psychology & Sexuality     Hybrid Journal   (Followers: 15)
Psychology and Aging     Full-text available via subscription   (Followers: 16)
Psychology and Developing Societies     Hybrid Journal  
Psychology and Law     Open Access   (Followers: 3)
Psychology and Psychotherapy: Theory, Research and Practice     Full-text available via subscription   (Followers: 19)
Psychology in Russia: State of the Art     Free   (Followers: 2)
Psychology in Society     Open Access   (Followers: 1)
Psychology Learning & Teaching     Full-text available via subscription   (Followers: 14)
Psychology of Addictive Behaviors     Full-text available via subscription   (Followers: 15)
Psychology of Aesthetics, Creativity and the Arts     Full-text available via subscription   (Followers: 15)
Psychology of Consciousness : Theory, Research, and Practice     Full-text available via subscription   (Followers: 7)
Psychology of Language and Communication     Open Access   (Followers: 14)
Psychology of Leaders and Leadership     Full-text available via subscription  
Psychology of Learning and Motivation     Full-text available via subscription   (Followers: 13)
Psychology of Men and Masculinity     Full-text available via subscription   (Followers: 25)
Psychology of Music     Hybrid Journal   (Followers: 25)
Psychology of Popular Media Culture     Full-text available via subscription   (Followers: 1)
Psychology of Religion and Spirituality     Full-text available via subscription   (Followers: 17)
Psychology of Sexual Orientation and Gender Diversity     Full-text available via subscription   (Followers: 14)
Psychology of Violence     Full-text available via subscription   (Followers: 15)
Psychology of Well-Being : Theory, Research and Practice     Open Access   (Followers: 20)
Psychology of Women Quarterly     Hybrid Journal   (Followers: 9)
Psychology Research and Behavior Management     Open Access   (Followers: 6)
Psychology, Community & Health     Open Access   (Followers: 3)
Psychology, Crime & Law     Hybrid Journal   (Followers: 27)
Psychology, Health & Medicine     Hybrid Journal   (Followers: 17)
Psychology, Public Policy, and Law     Full-text available via subscription   (Followers: 13)
Psychometrika     Hybrid Journal   (Followers: 8)
Psychomusicology : Music, Mind, and Brain     Full-text available via subscription   (Followers: 8)
Psychoneuroendocrinology     Hybrid Journal   (Followers: 15)
Psychonomic Bulletin & Review     Full-text available via subscription   (Followers: 20)
Psychopathology     Full-text available via subscription   (Followers: 4)
Psychopharmacology     Hybrid Journal   (Followers: 15)
Psychophysiology     Hybrid Journal   (Followers: 9)
psychopraxis. neuropraxis     Hybrid Journal   (Followers: 1)
Psychosis: Psychological, Social and Integrative Approaches     Hybrid Journal   (Followers: 8)
Psychosomatic Medicine     Hybrid Journal   (Followers: 12)
Psychosomatic Medicine and General Practice     Open Access   (Followers: 1)
Psychosomatics     Hybrid Journal   (Followers: 9)
Psychotherapeut     Hybrid Journal   (Followers: 4)
Psychotherapy and Politics International     Hybrid Journal   (Followers: 4)
Psychotherapy and Psychosomatics     Partially Free   (Followers: 11)
Psychotherapy in Australia     Full-text available via subscription   (Followers: 1)
Psychotherapy Research     Hybrid Journal   (Followers: 21)
PsychTech & Health Journal     Open Access   (Followers: 2)
Psyecology - Bilingual Journal of Environmental Psychology     Hybrid Journal   (Followers: 3)
Psyke & Logos     Open Access   (Followers: 4)
Psykhe (Santiago)     Open Access  
Quaderni di Gestalt     Full-text available via subscription  
Quaderns de Psicologia     Open Access  
Qualitative Psychology     Full-text available via subscription   (Followers: 6)
Qualitative Research in Psychology     Hybrid Journal   (Followers: 18)
Qualitative Studies     Open Access   (Followers: 12)
Quality and User Experience     Hybrid Journal   (Followers: 5)
Quantitative Methods for Psychology     Open Access   (Followers: 1)
Quarterly Journal of Experimental Psychology     Hybrid Journal   (Followers: 23)
Race and Social Problems     Hybrid Journal   (Followers: 11)
Reading Psychology     Hybrid Journal   (Followers: 6)
Rehabilitation Psychology     Full-text available via subscription   (Followers: 9)

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Similar Journals
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Psyche: A Journal of Entomology
Journal Prestige (SJR): 0.162
Number of Followers: 6  

  This is an Open Access Journal Open Access journal
ISSN (Print) 0033-2615 - ISSN (Online) 1687-7438
Published by Hindawi Homepage  [339 journals]
  • Basic Developmental Characteristics of the Fall Armyworm, Spodoptera
           frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), Reared under Laboratory

    • Abstract: The life cycle of the invasive alien insect pest, fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith), was studied using a colony established from field-collected larvae. Eggs, neonate larvae, and newly emerged adult moths were used in experiments to investigate the basic biology of the FAW. Adult females laid up to 1184 eggs with a mean of 469 ± 22 eggs per female. The incubation period of eggs and percentage hatchability were 2-3 days and 80–87%, respectively. The mean larval lengths from the first to the sixth instar were 4.63, 6.60, 9.76, 15.86, 25.13, and 27.81 mm, respectively. The mean larval weights were 0.003, 0.019, 0.045, 0.050, 0.060, and 0.067 g, respectively, for the six instars. The mean width of the head capsule of the sixth instar larva was 2.76 mm. The total larval duration throughout the six instar stages was 16–18 days, while the mean pupal weight was 0.25 ± 0.001 g and 0.35 ± 0.011 g for males and females, respectively. The mean pupal length was 14.3 ± 0.16 mm for males and 17.2 ± 0.14 mm for females. Pupal duration ranged from 8 to 14 days, with a mean of 10.35 ± 0.26 days, while the pupal emergence rate ranged from 60 to 94%, with a mean of 80.25 ± 1.28%. The life cycle of males lasted 33–44 days and that of females lasted 36–49 days under laboratory conditions. Adult copulation occurred between 8 and 11 pm, with the peak occurring at 9 pm. This study provides baseline information about the biology of the FAW. Apart from being an important reference point for future research on the FAW, the data provided would aid FAW management decision-making.
      PubDate: Sat, 29 Apr 2023 06:50:01 +000
  • Study on Ectoparasites of Free-Ranging Domestic Cats (Felidae; Felis
           catus) and Introducing Trichodectes canis as a New Record Louse in Tehran
           Urban Parks, Iran

    • Abstract: Free-ranging domestic cats (Felidae, Felis catus) can potentially play host to some life-threatening zoonotic pathogens including ectoparasites such as fleas, ticks, and lice. These ectoparasites are capable of transmitting zoonotic disease. Cats (Felis catus) were captured using baited cage traps with raw red meat from five parks in central areas of Tehran, Iran, in the summer of 2018. The collected cats were moved to the laboratory, and their ectoparasites were removed from their skin by forceps and combing for five minutes for each cat. Ectoparasites were stored in 70% ethanol and later mounted for identification of species, using species identification keys. Forty-one cats were collected from these study areas. Among all captured cats, 26 specimens (63.41%) were infected with 83 ectoparasites and the average infection rate was 3.19 in cats. Six arthropod species were identified, including four fleas (89.16%), one louse (8.43%), and one tick (2.41%). The four flea species included Ctenocephalides canis (39.76%), Ctenocephalides felis (18.07%), Xenopsylla nubica (16.87%), and Pulex irritans (14.46%). The one louse species was Trichodectes canis (8.43%), and the one tick species recovered was identified as Hyalomma spp. (2.41%). Based on the findings, Ctenocephalides canis was the most common ectoparasite species (39.76%). Fleas were the most prevalent ectoparasites on Felis catus cats, with the highest prevalence, observed for Ctenocephalides canis. Due to the large and growing population of cats and the high risk of transmission of common diseases between humans and cats, as well as the high contact and communication of people with cats, we were encouraged to study the ectoparasites of cats in five important parks in the city of Tehran.
      PubDate: Fri, 03 Mar 2023 07:20:00 +000
  • Evaluation of Pathogenicity of Entomopathogenic Oomycetes Lagenidium
           giganteum and L. ajelloi against Anopheles Mosquito Larvae

    • Abstract: Malaria is a mosquito-borne life-threatening parasitic disease of humans and the leading cause of mortality and morbidity in sub-Saharan Africa. Despite the major efforts made towards malaria control, it is facing challenges of development of parasite resistance towards antimalarial drugs coupled with Anopheles vector resistance towards insecticides being used in control. There is, therefore, a need to develop complementary control strategies that are economical and environmentally friendly. Biological control using entomopathogenic fungi against the immature malaria mosquito vectors presents an untapped opportunity. This study sought to isolate and characterize entomopathogenic oomycetes Lagenidium giganteum and L. ajelloi from wild Anopheles larvae from Ahero rice fields in western Kenya and test their pathogenicity against laboratory-reared Anopheles gambiae larvae. Laboratory-reared A. gambiae larvae (3rd and 4th instar) were exposed to five different concentrations of L. giganteum and L. ajelloi zoospores; 1000, 2000, 3000, 4000, and 5000 zoospores/mL, respectively. The larval mortality was recorded after 24, 48, 72, and 96 hours post-exposure, until all larvae were dead. The results obtained showed that L. giganteum was not pathogenic to A. gambiae larvae after 24 and 48 hours post-exposure to all concentrations. Larval mortality was recorded at 72 and 96 hours. There were no significant differences observed in the mortalities from all treatments. No mortalities were observed in deionized water (negative control) whereas 100% mortality was recorded in larvae exposed to Bti (positive control). Probit analysis showed that LC50 after 72 hours and 96 hours was 2.32 × 104 and 3.51 × 103 zoospores/ml, respectively. L. ajelloi caused larval mortalities at all the 5 test concentrations after 24-, 48-, 72- and 96-hours post-exposure with LC50 values of 1.18 × 105, 1.43 × 104, and 6.05 × 102, and 27.08 zoospores/ml, respectively. This study isolated and tested two species of Lagenidium from field collected larvae. Lagenidium ajelloi recorded greater pathogenicity than that of L. giganteum against A. gambiae larvae, making them potential candidates for use in the development of bio-larvicide for the control of Anopheles larvae.
      PubDate: Mon, 27 Feb 2023 07:35:01 +000
  • Endophytic Potential and Larvicidal Efficacy of Entomopathogenic Fungi
           against the Spotted Stem Borer, Chilo partellus

    • Abstract: Entomopathogenic fungi (EPF) of different genera are known to have the potential to engage in fungus-plant interactions as fungal endophytes. This hidden endophytic interaction offers several advantages to host plants, such as insect pest management. Hence, this study aimed to explore the endophytic potential and virulence of EPF collections after artificial inoculation. A total of 27 EPF isolates from the genera Beauveria and Metarhizium were screened for virulence. Two inoculation methods (leaf and seed dressing) were used to study the endophytic colonisation potential of the selected isolates. There was a significant variation among the tested isolates in their ability to kill C. partellus larvae. Lower mean percentage mortality was recorded for isolates B4, DS-51-21, and B1,9 which scored 28.01%, 32.29%, and 34.58%, respectively. All the screened EPF isolates were able to colonise maize tissues after artificial inoculation, except for APPRC-34GM. The percent colonisation of maize tissues varied with strains, and delivery methods ranged from a minimum of 0% to a maximum of 53%, where the maximum was recorded by S#10H. Larval mortality after feeding maize leaves inoculated with EPF ranged from 18% to 60%. The findings of this study indicated that Beauveria spp. and Metarhizium spp. have the potential to colonise maize after artificially inoculating and translocating from the site of infection. Hence, the potential to move from the site of infection and larvicidal activity after colonisation may give the advantage to manage insect pests acting on the different parts of maize.
      PubDate: Wed, 21 Dec 2022 13:50:01 +000
  • Evaluation of Locally Available Botanicals for the Management of Maize
           Weevil (Sitophilus zeamais Motsch.) in Room Storage Condition

    • Abstract: From April to July 2019, an experiment was conducted in Khumaltar, Lalitpur (27°39.312′N, 85° 19.586′E, and 1322 m above sea level) to assess the effectiveness of plant materials on maize weevil (Sitophilus zeamais Motsch.) control under laboratory conditions (maintained room temperature of 28.5 ± 2°C, and relative humidity of 72 ± 5%) treatments were Acorus calamus (rhizome powder) @ 5 g·kg−1, Melia azadirach (rhizome powder) seed) @ 5 g·kg−1, Curcuma domestica (rhizome powder) @ 5 g·kg−1, mustard oil @ 2 mL·kg−1, Gingiber officinalis (rhizome powder) @ 5 g·kg−1, rice husk ash @ 5 g·kg−1, and an untreated control. These treatments were evaluated in a completely randomized design (CRD) with three replications. At four months, the grains treated with Acorus calamus had the least weight loss (6.66%), and grain damage (1.23%). Grain damage (18%), and weight loss (62.33%) were the highest in the control treatment. Similarly, grains treated with Acorus calamus had the fewest number of exit holes (3.10 per 100 g of maize seed), while the control treatment had the largest number of exit holes (45.10 per 100 g of maize seed). There was a significantly higher number of weevils in the control treatment (55.80 per 250 g maize grains), but only a few numbers of weevils in the Acorus calamus-treated grains (2.50 per 250 g maize grains). In contrast with other plant materials treated grains, the maize weevil showed a reduced preference for Acorus calamus- treated grains with low weight loss, and grain damage. These findings can be used to promote locally accessible botanicals for maize weevil control in Nepal.
      PubDate: Wed, 26 Oct 2022 08:05:02 +000
  • Evaluation of Castor (Ricinus communis L.) Genotypes and Their Feeding
           Values on Rearing Performance of Eri Silkworm (Samia cynthia ricini
           Boisduval) (Lepidoptera: Saturniidae) in Southwest Ethiopia

    • Abstract: The quality of feed plays an important role in the growth and development of silkworms and eventually in the economic traits of cocoons. This study was conducted to evaluate ten castors (Ricinus communis L.) genotypes and their feeding values on the rearing performance of Eri Silkworm (Samia cynthia ricini Boisduval) (Lepidoptera: Saturniidae) at Tepi, southwest Ethiopia. A total of ten castor genotypes were evaluated in a randomized complete block design (RCBD), and the suitability of castor genotypes as feed for a mixed strain of Eri-silkworm was also evaluated in a completely randomized design (CRD) under laboratory conditions. A hundred worms were used in each replication. Castor genotypes showed significant differences in fresh leaf yield. Among the castor genotypes tested, genotype 219645 recorded 439 g of ten fresh leaf yields. Results of Eri-silkworm rearing performance depict that a shorter larval period (22 days), a higher effective rate of rearing (94.54%), and a shorter life cycle (58 days) were observed in Eri-silkworm fed on leaves of the 200390 genotype, while a higher larval weight (6.16 g) was recorded in the Abaro genotype. However, higher cocoon weight (3.26 g), pupal weight (2.46 g), shell weight (0.45 g), and silk ratio (13.80%) were found in Eri-silkworms fed on leaves of genotype 219645. Hence, based on silkworm rearing performance, genotype 219645 showed relatively superior results and is recommended for future development work. Further studies should continue giving more emphasis to the multilocation study of genotype 219645 to understand its performance in the diverse growing environment.
      PubDate: Mon, 03 Oct 2022 03:05:02 +000
  • Larvicidal Effects of Nanoliposomes Containing Clove and Cinnamon
           Essential Oils, Eugenol, and Cinnamaldehyde against the Main Malaria
           Vector, Anopheles stephensi Liston

    • Abstract: The use of larvicides, especially in endemic regions, is recommended for malaria control. However, due to the excessive use of synthetic larvicides, resistance in mosquitoes and environmental pollution have been challenges. In the current study, nanoliposome containing clove and cinnamon essential oils and their major ingredients, i.e., eugenol and cinnamaldehyde, were first prepared; particle size and successful loading were investigated using DLS (Dynamic Light Scattering) and ATR-FTIR (Attenuated Total Reflection-Fourier Transform InfraRed) analysis. Larvicidal effects of the nanoliposomes and nonformulated samples were then investigated against Anopheles stephensi. The best-observed efficacy (LC50 5.4 μg/mL) was related to nanoliposomes containing eugenol with a particle size of 109 ± 4 nm. However, LC50 values of the other three nanoformulations were also around 10 μg/mL; all four prepared nanoformulations were thus introduced as natural larvicides for further investigations in the field conditions.
      PubDate: Fri, 16 Sep 2022 12:20:01 +000
  • Spatial Distribution, Seasonal Dynamics, and Sex Ratio of Lycorma
           delicatula (Hemiptera: Fulgoridae) Adults on Tree of Heaven

    • Abstract: The spatial distribution and seasonal dynamics of the spotted lanternfly (Lycorma delicatula) on tree of heaven (Ailanthus altissima) were studied in Pennsylvania through weekly sampling of 30 trees (6 sites, 5 trees/site) from 27 July to 8 November 2020. Adults found on each tree were separated into six within-tree positions (lower trunk, middle trunk, upper trunk, first branch, second branch, and above second branch) by four directions (East, South, West, and North). In total, 78,796 adults were counted at the six study sites during the 15-week period. Significant differences in total adult count were found among trees, with a mean of 2,627 (254–12,023) adults/tree. Study site, tree diameter, and cardinal direction had no significant impact on adult spatial distribution. However, significantly more adults were found on the middle (1077), the lower (865), and the upper trunk (337) compared with the first (194), the second (93), and above second branches (60). Most adults were congregated on the lower and middle trunks. Seasonal dynamics followed adult development and migration patterns in the field, with peak populations observed in weeks 35 (24–30 August) and 37 (7–13 September) before declining. Female-based sex ratios ranged from 77.3 to 100% according to weekly monitoring of the lower 1 m trunk of 10 trees at 2 sites (5 trees/site) for 12 weeks from 17 August to 8 November, with 7,356 females and 197 males counted, respectively. Impact factors such as attack patterns, intraspecific congregation, adult seasonality, and sexual dimorphism in host selection are discussed.
      PubDate: Tue, 30 Aug 2022 12:20:02 +000
  • Defense against Feeding by Spring Aphid Parasitism in the Upper Leaf Parts
           of Host Plants

    • Abstract: In a symbiosis, each participant gains more fitness benefits than is paid in maintenance costs for the symbiosis. The mugwort aphid, Macrosiphoniella yomogicola, is ant-associated, and the host mugwort Artemisia montana is a genet-producing plant that has clonal aboveground shoots. M. yomogicola infests most A. montana shoots from spring to midsummer, and attending ants also repel leaf-eaters of the host plant. However, most aphid colonies become extinct after budding of A. montana inflorescence after early August. A few surviving aphid colonies (1∼3 per genet) produce sexuparae in mid-October. The shoots on which the sexuparae emerged lost most of their fitness because the aphids strongly suppress budding and growth of inflorescence. However, as the shoots are genetic clones of each other, the appearance of stem mothers in the next spring may result in early spreading of the aphids and attending ants to clonal shoots, which would protect the host from leaf-eaters. Here, we show that all shoots on a genet with stem mothers are occupied by aphids and ants much faster than those on a genet without stem mothers. The attending ants repel leaf-eaters to unimportant leaves for the host. Our results suggest that, as the shoots of a genet are all clones, sustaining the aphids on a few shoots may be beneficial to a genet as a whole through kin selection.
      PubDate: Tue, 31 May 2022 04:20:03 +000
  • Insecticide Resistance in the Disease Vector Culex pipiens in Morocco:
           Intensity, Mechanisms, and Contribution in Insecticide Resistance

    • Abstract: West Nile (WN) virus has been detected in Morocco in 1996, 2003, and 2010. One WN human case and 94 equine cases with 42 deaths were reported in the first outbreak. The second and the last epizootics were in Kénitra and Mohammedia regions, respectively. Culex pipiens mosquitoes were strongly suspected as WN vectors during these epizootics in Morocco. To help propose the first insecticide resistance management strategy in Morocco, we provide baseline data on the resistance status of C. pipiens mosquitoes to insecticides most used in public health in Morocco. We investigated the resistance intensity of C. pipiens and the role of monooxygenases in pyrethroids resistance using the synergist piperonyl butoxide (PBO) in three prefectures of central Morocco: Mohammedia, Benslimane, and Skhirate. Bioassays were carried out using WHO (World Health Organization) diagnostic test kits for adult mosquitoes, with DDT 4%; deltamethrin 0.05%, 0.25%, and 0.5%; bendiocarb 0.1%, 0.5%, and 1%; and malathion 5%. The synergist PBO 4% was used to check for the involvement of detoxification enzymes in pyrethroids resistant populations. Mosquito populations tested displayed high resistance intensity to pyrethroids and carbamates in Mohammedia and moderate resistance intensity in Skhirate. In Benslimane, the resistance intensity of C. pipiens was high to carbamate and moderate to pyrethroids. The pre-exposure to PBO restored full or partial susceptibility to pyrethroids in the different regions. According to our finding, Mohammedia and Benslimane are at risk level 3 of control failure, while Skhirate is at risk level 2 of it. The employment of IRM is therefore imperative in all study sites.
      PubDate: Thu, 28 Apr 2022 10:50:03 +000
  • Larvicidal Activities and Synergistic Effects of Essential Oils against
           Anopheles funestus and Culex quinquefasciatus (Diptera: Culicidae) from
           Kisumu, Kenya

    • Abstract: Rapid development of resistance in vector mosquitoes to synthetic insecticides is a major challenge for malaria control. The use of plant-derived essential oils (EOs) is an attractive strategy in controlling mosquito populations because they are environmentally safe and may have a lower chance of developing resistance. This study assessed the larvicidal activities of EOs from Lantana camara, Lippia multiflora, Lippia chevalieri, and Cymbopogon schoenanthus against Anopheles funestus and Culex quinquefasciatus. The 3rd–4th instar larvae were tested using a World Health Organization (WHO)-modified protocol to evaluate larval mortality 24 h after exposure to EOs and their binary combinations. Culex quinquefasciatus larvae were more susceptible to EOs than An. funestus larvae. For Cx. quinquefasciatus, the lethal concentrations at 50% mortality (LC50s) of EOs from C. schoenanthus, L. multiflora, L. camara, and L. chevalieri were 23.32, 27.24, 38.54, and 54.11 ppm, respectively; whereas for An. funestus, the EO LC50s were 120.5, 67.5, 49.21, and 105.74 ppm, respectively. Synergistic effects were observed using EOs from C. schoenanthus + L. multiflora (LC50 = 44.05 ppm) on An. funestus, while L. camara + L. chevalieri (LC50 = 33.16 ppm), L. chevalieri + C. schoenanthus (LC50 = 12.08 ppm), and L. multiflora + L. chevalieri (LC50 = 20.61 ppm) were synergistic for Cx. quinquefasciatus. These results indicate the potential of EOs derived from local plants and their binary combinations as botanical larvicides. The EOs could be used as future ecofriendly agents to control these vectors.
      PubDate: Tue, 08 Mar 2022 06:35:01 +000
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Heriot-Watt University
Edinburgh, EH14 4AS, UK
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