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  Subjects -> PSYCHOLOGY (Total: 1007 journals)
Showing 601 - 174 of 174 Journals sorted alphabetically
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: 3)
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: 5)
Organizational Psychology Review     Hybrid Journal   (Followers: 16)
Orientación y Sociedad : Revista Internacional e Interdisciplinaria de Orientación Vocacional Ocupacional     Open Access  
Paidéia (Ribeirão Preto)     Open Access  
Pain     Hybrid Journal   (Followers: 60)
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: 13)
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: 139)
Personality and Social Psychology Review     Hybrid Journal   (Followers: 48)
Personality Disorders: Theory, Research, and Treatment     Full-text available via subscription   (Followers: 18)
Personnel Assessment and Decisions     Open Access  
Personnel Psychology     Hybrid Journal   (Followers: 54)
Perspectives interdisciplinaires sur le travail et la santé     Open Access   (Followers: 3)
Perspectives on Behavior Science     Hybrid Journal  
Perspectives On Psychological Science     Hybrid Journal   (Followers: 35)
Perspectives Psy     Full-text available via subscription  
Phenomenology & Practice     Open Access   (Followers: 2)
Phenomenology and the Cognitive Sciences     Hybrid Journal   (Followers: 4)
Philosophical Psychology     Hybrid Journal   (Followers: 19)
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)
Policy Insights from the Behavioral and Brain Sciences     Full-text available via subscription   (Followers: 4)
Political Psychology     Hybrid Journal   (Followers: 42)
Porn Studies     Hybrid Journal   (Followers: 6)
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: 6)
Progress in Brain Research     Full-text available via subscription   (Followers: 2)
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: 2)
Psychiatrische Praxis     Hybrid Journal   (Followers: 1)
Psychiatry, Psychology and Law     Hybrid Journal   (Followers: 354)
Psychoanalysis and History     Hybrid Journal   (Followers: 3)
Psychoanalysis, Self and Context     Hybrid Journal   (Followers: 4)
Psychoanalytic Dialogues: The International Journal of Relational Perspectives     Hybrid Journal   (Followers: 8)
Psychoanalytic Inquiry: A Topical Journal for Mental Health Professionals     Hybrid Journal   (Followers: 7)
Psychoanalytic Perspectives     Hybrid Journal   (Followers: 6)
Psychoanalytic Psychology     Full-text available via subscription   (Followers: 3)
Psychoanalytic Psychotherapy     Hybrid Journal   (Followers: 13)
Psychoanalytic Review The     Full-text available via subscription   (Followers: 7)
Psychoanalytic Social Work     Hybrid Journal   (Followers: 10)
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: 12)
Psychological Bulletin     Full-text available via subscription   (Followers: 193)
Psychological Medicine     Hybrid Journal   (Followers: 19)
Psychological Perspectives: A Semiannual Journal of Jungian Thought     Hybrid Journal   (Followers: 1)
Psychological Reports     Hybrid Journal  
Psychological Research     Hybrid Journal   (Followers: 9)
Psychological Research on Urban Society     Open Access  
Psychological Review     Full-text available via subscription   (Followers: 173)
Psychological Science     Hybrid Journal   (Followers: 234)
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: 16)
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: 20)
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: 32)
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: 18)
Psychology in Russia: State of the Art     Free   (Followers: 2)
Psychology in Society     Open Access  
Psychology Learning & Teaching     Full-text available via subscription   (Followers: 9)
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: 11)
Psychology of Men and Masculinity     Full-text available via subscription   (Followers: 24)
Psychology of Music     Hybrid Journal   (Followers: 20)
Psychology of Popular Media Culture     Full-text available via subscription   (Followers: 3)
Psychology of Religion and Spirituality     Full-text available via subscription   (Followers: 16)
Psychology of Sexual Orientation and Gender Diversity     Full-text available via subscription   (Followers: 12)
Psychology of Violence     Full-text available via subscription   (Followers: 16)
Psychology of Well-Being : Theory, Research and Practice     Open Access   (Followers: 20)
Psychology of Women Quarterly     Hybrid Journal   (Followers: 8)
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: 16)
Psychology, Public Policy, and Law     Full-text available via subscription   (Followers: 13)
Psychometrika     Hybrid Journal   (Followers: 7)
Psychomusicology : Music, Mind, and Brain     Full-text available via subscription   (Followers: 5)
Psychoneuroendocrinology     Hybrid Journal   (Followers: 14)
Psychonomic Bulletin & Review     Full-text available via subscription   (Followers: 18)
Psychopathology     Full-text available via subscription   (Followers: 4)
Psychopharmacology     Hybrid Journal   (Followers: 16)
Psychophysiology     Hybrid Journal   (Followers: 7)
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: 5)
Psychotherapy and Psychosomatics     Partially Free   (Followers: 11)
Psychotherapy in Australia     Full-text available via subscription   (Followers: 1)
Psychotherapy Research     Hybrid Journal   (Followers: 18)
PsychTech & Health Journal     Open Access   (Followers: 3)
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: 17)
Qualitative Studies     Open Access   (Followers: 12)
Quality and User Experience     Hybrid Journal   (Followers: 2)
Quantitative Methods for Psychology     Open Access   (Followers: 1)
Quarterly Journal of Experimental Psychology     Hybrid Journal   (Followers: 21)
Race and Social Problems     Hybrid Journal   (Followers: 10)
Reading Psychology     Hybrid Journal   (Followers: 6)
Rehabilitation Psychology     Full-text available via subscription   (Followers: 9)
Religion, Brain & Behavior     Hybrid Journal   (Followers: 10)
Research in Autism Spectrum Disorders     Hybrid Journal   (Followers: 26)
Research in Psychology and Behavioral Sciences     Open Access   (Followers: 2)
Research in Psychotherapy : Psychopathology, Process and Outcome     Open Access   (Followers: 2)
Reverso     Open Access  

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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]
  • Insecticide Resistance in the Disease Vector Culex pipiens in Morocco:
           Intensity, Mechanisms, and Contribution in Insecticide Resistance
           Management

    • 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
       
  • The Use of Honeybee Hives May Boost Yields of Some Crops in Nepal

    • Abstract: Many pollination-dependent crops worldwide need bees for the highest productivity. If the crops are not pollinated, a pollination deficit will result. Consequently, low yields of fruit set and seed set of cultivated plants may be expected. Here, we evaluated how pollination with honeybee (Apis mellifera) hives may affect the production of the bittergourd (Momordica charantia), buckwheat (Fagopyrum esculentum), and mustard (Brassica campestris) in tons or quintal per hectare in Nepal. Our experimental design involved three treatments in blocks within selected areas: (i) the effect of the honeybees alone (caged with beehives), (ii) free insect access under natural field conditions, and (iii) blocks restraining insect access (caged without beehives). We also assessed the flower visiting insects within crops using pan traps and identifying insect orders. We found that the productivity of bittergourd, buckwheat, and mustard significantly increased in the treatments with beehives inside the cage. To a lesser extent, the treatment with free access to the flying insects enhanced the production of the selected crops. Proportionally, Hymenoptera (mainly bees) was the most common taxon within bittergourd, buckwheat, and mustard crops, followed by Diptera and Lepidoptera. Hence, the provision of beehives in cultivated areas such as those evaluated here could be considered as a complementary strategy for supporting the long-term productivity of these crops in Nepal.
      PubDate: Tue, 14 Dec 2021 13:20:03 +000
       
  • Butterfly Diversity and Abundance in the Middle Afromontane Area of
           Northwestern Ethiopia

    • Abstract: Butterflies are good indicators of environmental health, and they play a critical role in the food chain. Butterfly diversity and abundance were studied for the first time at three forests and their surrounding habitats in northwestern Ethiopia, a borderline ecosystem between the subtropical savannah and the Ethiopian highlands (Afromontane). Butterfly species richness and abundance were assessed using transects between October 2018 and June 2019. Data were analyzed using analysis of variance, correlation and regression analysis, diversity indices, ordination analysis, cluster analysis, and rarefaction curves. A total of 27,568 butterflies were recorded that belonged to three families, five subfamilies, and eight genera. The forest habitat had more butterfly taxa (abundance and diversity) than other habitats. Belenois spp. and Mylothris agathina were the most abundant in all three study locations. Species common to all study areas include Belenois aurota, Belenois raffrayi, Mylothris agathina, Eronia leda, Junonia terea elgiva, and Phalanta eurytis neuritis. Forest edge and woody forest habitats were the richest in terms of both number of species and number of individuals. Equitability (Pielou's index) showed equal distribution of the species, i.e., 0.8 to 0.9, except at the open grassland at Tara Gedam (0.3). Margalef's index varied between habitats and locations showing differences in species richness (from 0.25 at the woody forest of Mount Bezawit to 0.86 at the forest edge of Tara Gedam). Ordination analyses also showed that associations existed between habitats, locations, and dates of sampling. Rarefaction curves rose quickly at the forest edge and woody forest habitats compared to other forests. The cluster analysis discriminated the different habitats. Populations declined during the dry season (December to April). In conclusion, butterfly species diversity and abundance varied with respect to habitat and sampling date (season), although less diverse than other regions in the country where natural forests still widely exist. Butterfly species must be regularly monitored, and their habitats must be preserved for the health of the entire ecosystem.
      PubDate: Thu, 02 Sep 2021 11:05:01 +000
       
  • Efficacy of Aqueous Extracts from Syzygium aromaticum, Tephrosia vogelii,
           and Croton dichogamus against Myzus persicae on Brassica oleracea in
           Northern Tanzania

    • Abstract: The effectiveness of 1, 5, and 10% w/v of aqueous extracts of Croton dichogamus, Tephrosia vogelii, and Syzygium aromaticum and their mixture (2.5 and 5%) was evaluated against Myzus persicae on Brassica oleracea under field conditions. The synthetic chemical insecticide, chlorpyrifos, was used as positive control, and water and water plus soap were used as negative controls. Aqueous extracts significantly () lowered M. persicae population compared with negative controls. The 5% of the aqueous extract from mixed plants and 10% of each plant used in this study significantly () reduced aphid, M. persicae population comparable to chlorpyrifos in 2019 and 2020. However, the 1 and 5% concentrations of aqueous extracts of C. dichogamus, T. vogelii, and S. aromaticum and 2.5% of aqueous extracts from the mixed plants significantly lowered the population of M. persicae compared with negative controls in 2019 and 2020 wet seasons. The weekly observations revealed that, at weeks 1, 2, 3, 4, and 5 after application of treatments, the population of M. persicae differed significantly (). Also, the aqueous extracts from the mixed plants at 5% concentrations significantly () reduced M. persicae population as compared with other treatments. It was as effective as synthetic chemical pesticide (chlorpyrifos). Also, 1 and 5% of C. dichogamus, T. vogelii, and S. aromaticum and the 2.5% of aqueous extracts from the mixed plants significantly reduced the population of M. persicae for all 6 weeks of study compared with negative controls. Therefore, these pesticidal plants can be recommended to smallholder farmers for the control of M. persicae in B. oleracea crops.
      PubDate: Mon, 19 Jul 2021 11:50:01 +000
       
  • The Effect of Breeding Habitat Characteristics on the Larval Abundance of
           Aedes Vector Mosquitoes (Diptera: Culicidae) in Three Localities, Galle
           District, Sri Lanka

    • Abstract: Dengue has become a national burden in Sri Lanka, and the understanding of breeding ecology of vectors, Aedes aegypti Linnaeus and Aedes albopictus Skuse, is the most effective way to control the disease. The present study was undertaken to investigate the relative larval abundance of Ae. aegypti and Ae. albopictus in different types and characteristics of containers in three selected localities in Galle district, Sri Lanka. Totally, 550 containers were positive for both Ae. aegypti and Ae. albopictus larvae. Aedes albopictus showed the high larval abundance in all studied sites. The larval abundance of artificial containers (90.57%) was high than that of natural containers (9.43%) for both Aedes spp. (). The breeding preference for A. aegypti was high in tires (rubber) (17.82%), while plastic cups (28.00%) were the most preferable container type for Ae. albopictus. Dark color containers than light color containers () and containers with leaf litter accumulated as detritus () showed high relative larval abundance for both Aedes species. Containers with 50–100 ml volume of water showed the highest relative abundance of both Ae. aegypti (29.28%) and Ae. albopictus (41.79%) (). The high larval abundance of Aedes recorded in ground level containers (1–5 cm) and their abundance decreased significantly with the increasing of height where containers were found (1–20 cm) (). The significantly high relative abundance was observed with the increase of the shady level for Ae. aegypti (57.34%) and Ae. albopictus (61.32%) (). This knowledge will be helpfull to implement dengue surveillance programs in the area.
      PubDate: Thu, 08 Jul 2021 11:20:01 +000
       
  • Toxicity and Oviposition Deterrent Activities of Thyme Essential Oils
           against Anopheles arabiensis

    • Abstract: Background. Malaria is one of the deadliest mosquito-borne diseases in sub-Saharan Africa and Ethiopia. Owing to their costs and environmental issues, synthetic insecticides are poor choices to control mosquitoes. Plant-based products can be considered as safe and biodegradable alternatives. The present study aimed to test the toxicity and oviposition deterrent activities of Thymus serrulatus and Thymus schimperi essential oils (EOs) against Anopheles arabiensis. Methods. Thyme EOs were extracted by hydrodistillation using the Clevenger-type apparatus. They were named Tar, Ala, and Yil after the areas of thyme collection Tarmaber, Alamata, and Yilmana Densa, respectively. Laboratory-based tests were used to determine the larvicidal, adulticidal, oviposition deterrent, and half lethal dose (LD50) of each EO. Results. The concentrations of 100 μl/L and 50 μl/L resulted in complete mortalities of larvae and adults, respectively, for all the three Eos considered. The EOs exhibited high repellency with oviposition activity index of −1 (OAI = −1) at concentrations of 50 μl/L (Tar), 100 μl/L (Ala), and 200 μl/L (Yil). Conclusions. The EOs of T. serrulatus and T. schimperi were effective against larvae and adult mosquitoes at small doses and resulted in oviposition deterrence at doses from 50 to 200 μl/L. Thus, these EOs are promising mosquitocides and oviposition deterrents. But, further tests both in the presence of already known and effective deterrents and field trials are required.
      PubDate: Tue, 08 Jun 2021 04:50:02 +000
       
  • Chemical Composition and Larvicidal Activity of Lavandula angustifolia
           Subsp. angustifolia and Lavandula dentata Spp. dentata Essential Oils
           against Culex pipiens Larvae, Vector of West Nile Virus

    • Abstract: The Culex pipiens mosquito (Diptera: Culicidae) is highly suspected to be the vector responsible for the spread of several parasitic and viral diseases. The use of synthetic insecticides is generally the preferred method of controlling these mosquitoes’ proliferation. However, it has led to resistance problems in target mosquitoes and environmental damage. Hence, diverse plant extracts could be considered as an alternative and potential source as mosquito control agents. In this study, essential oils of Lavandula angustifolia subsp. angustifolia and Lavandula dentata spp. dentata that are growing in Morocco were examined for their insecticidal effects on Culex pipiens larvae. The bioassay was performed according to a methodology inspired by the standard protocol of the World Health Organization. The mortality rate was determined after 24 hours of exposure, and probit regression analysis was used to calculate LC50 and LC90. The chemical analysis revealed that the principal compounds of L. angustifolia subsp. essential oils include linalool, linalyl acetate, geraniol, lavandulyl acetate, camphor, β-caryophyllene, terpinen-4-ol, β-myrcene, and 1,8-cineole, while the essential oil of L. dentata spp. was mainly composed of 1,8-cineole, camphor, α-pinene, trans-pinocarveol, linalool, and borneol. These volatile compounds have shown a toxic effect against Culex pipiens larvae, with lethal concentrations LC50 and LC90 being, respectively, 140 µg/ml and 450 µg/ml, for the L. angustifolia subsp. essential oil. Meanwhile, they were estimated at 2670 µg/ml and 7400 µg/ml, respectively, for the L. dentata spp. essential oil. These results suggest using essential oils of two species of Lavandula to control the Culex pipiens mosquito. It could be useful for the study of new natural larvicidal compounds.
      PubDate: Wed, 14 Apr 2021 09:05:02 +000
       
  • A Description and Examination of Fluorescence in Nine North American
           Firefly Species (Coleoptera: Lampyridae)

    • Abstract: Fluorescence across the family Lampyridae has been documented sporadically but not comprehensively in formal research. Fireflies (Coleoptera: Lampyridae), best known for their bioluminescence, are also fluorescent. This fluorescence has been documented in several genera within the clade but is still an often overlooked aspect of firefly physiology in the common understanding of the species. To this end, the purpose of this study was to document and describe the fluorescence in nine species of North American fireflies, across three genera. Each species was photographed and a description of the fluorescent pattern was provided, as well as measurements of the specific spectral sensitivity of the fluorescent excitation and emission wavelengths. These data are intended to provide an identification guide of sorts to different firefly fluorescence, as well as documenting definitively its presence in several firefly genera.
      PubDate: Thu, 28 Jan 2021 13:50:02 +000
       
  • The Complete Mitochondrial Genome of the American Palm Cixiid, Haplaxius
           crudus (Hemiptera: Cixiidae)

    • Abstract: Haplaxius crudus Van Duzee is a pest of various economically important palms due to its ability to transmit lethal yellowing, a fatal phytoplasma infection. It is also the putative vector of lethal bronzing in Florida, another lethal phytoplasma disease causing significant economic losses. To date, no mitochondrial genomes for species in the family Cixiidae are sequenced. In this study, the complete mitochondrial genome of H. crudus was sequenced, assembled, and annotated from PacBio Sequel II long sequencing reads using the University of Florida’s HiPerGator. The mitogenome of H. crudus is 15,848 bp long and encodes 37 mitochondrial genes (including 13 protein-coding genes (PCGs), 22 tRNAs, and 2 rRNAs) in addition to a putative noncoding internal control region. The nucleotide composition of H. crudus is asymmetric with a bias toward A/T (44.8 %A, 13.4 %C, 8.5 %G, and 33.3 %T). Protein-coding genes (PCGs) possess the standard invertebrate mitochondrial start codons with few exceptions while the gene content and order of the H. crudus mitogenome is highly similar to most completely sequenced insect mitochondrial genomes. Phylogenetic analysis based on the entire mitogenome shows H. crudus resolving closely to Delphacidae, the accepted sister taxon of Cixiidae. These data provide a useful resource for developing novel primer sets that could aid in either phylogenetic studies or population genetic studies. As more full mitogenomes become available in the future for other planthopper species, more robust phylogenies can be constructed, giving more accurate perspectives on the evolutionary relationships within this fascinating and economically important group of insects.
      PubDate: Tue, 05 Jan 2021 08:05:02 +000
       
 
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