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Effectiveness of Three Pesticides Against Carmine Spider Mite (Tetranychus Cinnabarinus Boisduval) Eggs on Tomato in Botswana
Vol. 17(8), pp. 1088-xxx, August, 2021 DOI: 10.5897/AJAR2021.15591 Article Number: 3489C4F67485 ISSN: 1991-637X Copyright ©2021 African Journal of Agricultural Author(s) retain the copyright of this article http://www.academicjournals.org/AJAR Research Full Length Research Paper Effectiveness of three pesticides against carmine spider mite (Tetranychus cinnabarinus Boisduval) eggs on tomato in Botswana Mitch M. Legwaila1, Motshwari Obopile2 and Bamphitlhi Tiroesele2* 1Botswana National Museum, Box 00114, Gaborone, Botswana. 2Botswana University of Agriculture and Natural Resources, P/Bag 00114, Gaborone, Botswana. Received 13 April, 2021; Accepted 16 July, 2021 The carmine spider mite (CSM; Tetranychus cinnabarinus Bois.) is one of the most destructive pests of vegetables, especially tomatoes. Its management in Botswana has, for years, relied on the use of pesticides. This study evaluated the efficacy of abamectin, methomyl and chlorfenapyr against CSM eggs under laboratory conditions in Botswana. Each treatment was replicated three times. The toxic effect was evaluated in the laboratory bioassay after 24, 48 and 72 h of application of pesticides. This study revealed that chlorfenapyr was relatively more effective since it had lower LD50 values than those for abamectin and methomyl. It was further revealed that at recommended rates, 90% mortalities occurred 48 h after application of methomyl and chlorfenapyr, while abamectin did not achieve 90% mortality throughout the study period. This implies that abamectin requires extra dosages to achieve mortalities comparable to those of the other two pesticides. The study has found that chlorfenapyr was the most effective insecticide followed by methomyl and then abamectin when applied on CSM eggs. -
A New Neotibicen Cicada Subspecies (Hemiptera: Cicadidae)
Zootaxa 4272 (4): 529–550 ISSN 1175-5326 (print edition) http://www.mapress.com/j/zt/ Article ZOOTAXA Copyright © 2017 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4272.4.3 http://zoobank.org/urn:lsid:zoobank.org:pub:C6234E29-8808-44DF-AD15-07E82B398D66 A new Neotibicen cicada subspecies (Hemiptera: Cicadidae) from the southeast- ern USA forms hybrid zones with a widespread relative despite a divergent male calling song DAVID C. MARSHALL1 & KATHY B. R. HILL Dept. of Ecology and Evolutionary Biology, University of Connecticut, 75 N. Eagleville Rd., Storrs, CT 06269 USA 1Corresponding author. E-mail: [email protected] Abstract A morphologically cryptic subspecies of Neotibicen similaris (Smith and Grossbeck) is described from forests of the Apalachicola region of the southeastern United States. Although the new form exhibits a highly distinctive male calling song, it hybridizes extensively where it meets populations of the nominate subspecies in parapatry, by which it is nearly surrounded. This is the first reported example of hybridization between North American nonperiodical cicadas. Acoustic and morphological characters are added to the original description of the nominate subspecies, and illustrations of com- plex hybrid song phenotypes are presented. The biogeography of N. similaris is discussed in light of historical changes in forest composition on the southeastern Coastal Plain. Key words: Acoustic behavior, sexual signals, hybridization, hybrid zone, parapatric distribution, speciation Introduction The cryptotympanine cicadas of North America have received much recent attention with the publication of comprehensive molecular and cladistic phylogenies and the reassignment of all former North American Tibicen Latreille species into new genera (Hill et al. -
Supporting Information
Supporting Information Campbell et al. 10.1073/pnas.1421386112 SI Materials and Methods transformed into Escherichia coli JM109 High Efficiency Com- Genome Sequencing. The following amount of data were generated petent Cells. Transformed cells were grown in 3 mL of LB broth at for each sequencing technology: 136,081,956 pairs of 100 × 2 37 °C overnight, and plasmids were purified with E.Z.N.A. plas- short insert Illumina HiSeq reads for about 27 Gb total; 50,884,070 mid DNA mini kit I. The purified plasmids were used as PCR pairs of 100 × 2 large insert HiSeq reads for about 10 Gb total; templates to for further amplification of the probe region. The and 259,593 reads averaging 1600 nt for about 421 Mb total of amplified probes were subject to nick translation (>175 ng/μL PacBio data. DNA, 1× nick-translation buffer, 0.25 mM unlabeled dNTPs, 50 μM labeled dNTPs, 2.3 U/μL DNA polymerase I, 9 mU/μL Genome Annotation. Annotation of Hodgkinia DNA was done Dnase), using either Cy3 (MAGTRE006 and MAGTRE005), or using the phmmer module of HMMER v3.1b1 (1). All ORFs Cy5 (MAGTRE001 and MAGTRE012), and size selected for beginning with a start codon that overlapped a phmmer hit sizes in the range of 100–500 bp using Ampure XP beads. Probes were searched against a database of all Hodgkinia genes using with at least seven incorporated labeled dNTPs per 1,000 nucle- BLASTX 2.2.28+. MAGTRE Hodgkinia genes were considered otides as determined by spectroscopy were used for hybridization. -
Evidence for Synonymy Between Tetranychus Urticae And
Evidence for synonymy between Tetranychus urticae and Tetranychus cinnabarinus (Acari, Prostigmata, Tetranychidae): Review and new data Philippe Auger, Alain Migeon, Edward A. Ueckermann, Louwrens Tiedt, Maria Navajas Navarro To cite this version: Philippe Auger, Alain Migeon, Edward A. Ueckermann, Louwrens Tiedt, Maria Navajas Navarro. Ev- idence for synonymy between Tetranychus urticae and Tetranychus cinnabarinus (Acari, Prostigmata, Tetranychidae): Review and new data. Acarologia, Acarologia, 2013, 53 (4), pp.383-415. 10.1051/ac- arologia/20132102. hal-00979843 HAL Id: hal-00979843 https://hal.archives-ouvertes.fr/hal-00979843 Submitted on 16 Apr 2014 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Distributed under a Creative Commons Attribution - NonCommercial - NoDerivatives| 4.0 International License Acarologia 53(4): 383–415 (2013) DOI: 10.1051/acarologia/2013XXXX EVIDENCE FOR SYNONYMY BETWEEN TETRANYCHUS URTICAE AND TETRANYCHUS CINNABARINUS (ACARI, PROSTIGMATA, TETRANYCHIDAE): REVIEW AND NEW DATA Philippe AUGER1,*, Alain MIGEON1, Edward A. UECKERMANN2, 3, Louwrens TIEDT3 and Maria NAVAJAS1 (Received 19 April 2013; accepted 02 June 2013; published online 19 December 2013) 1 Institut National de la Recherche Agronomique, UMR CBGP (INRA / IRD / CIRAD / Montpellier SupAgro), Campus international de Baillarguet, CS 30016, F-34988 Montferrier-sur-Lez cedex, France. -
Status of Beekeeping in Ethiopia- a Review
Journal of Dairy & Veterinary Sciences ISSN: 2573-2196 Review Article Dairy and Vet Sci J Volume 8 Issue 4 - December 2018 Copyright © All rights are reserved by Kenesa Teferi DOI: 10.19080/JDVS.2018.08.555743 Status of Beekeeping in Ethiopia- A Review Kenesa Teferi* College of Veterinary Medicine, Mekelle University, Ethiopia Submission: November 16, 2018; Published: December 06, 2018 *Corresponding author: Kenesa Teferi, College of Veterinary Medicine, Mekelle University, Ethiopia Summary Beekeeping practices is an oldest agricultural activity in Ethiopia. It is a major integral component in agricultural economy of the country. It contributes to the economy of the country directly and indirectly. Its direct contributions are collection of the honey and hive products such as bees wax, and bee colonies whereas its indirect contributions are increase in crop production and conservation of the natural environment through pollination. Despite all the potentials the subsector can offer, the apiculture in Ethiopia has suffered from under estimation of its potential and its role for socioeconomic development. The country’s potential for honey and beeswax production is expected to be 500,000 and 50, 000 tons per year for honey and beeswax respectively, but only approximately about 10% of the honey and wax potential have been tapped, and the commercialization of other high value bee products such as pollen, propolis and bee venom is not yet practiced at a marketable volume, even not yet recognized. Ethiopia ranks ninth in honey and third in beeswax production in the world. All regions of Ethiopia produce honey, but their production potential is different based on suitability of the regions for beekeeping i.e., density of bee’s forages across the region is different and the techniques varies also. -
Survey of the Pests and Diseases of Honeybees in Sudan
Survey of the pests and diseases of honeybees in Sudan By Mogbel Ahmed Abdalla El-Niweiri B.Sc. (Agric.) Honours, Faculty of Agriculture ١٩٩٨ University of Khartoum A thesis submitted in partial fulfilment of the requirements for the degree of Master of Science in Agriculture Supervisor Prof. Mohammed S.A. El-Sarrag Department of Crop Protection Faculty of Agriculture University of Khartoum ٢٠٠٤-April ١ Dedication To my beloved family and to all who work in beekeeping ٢ Acknowledgements Thanks and praise first and last to my god the most Gracious and the most Merciful who enabled me to performance this research I would like to express my deep gratitude to my supervisor professor M.S.A.El-Sarrag for introducing me to the subject and for his guidance and patience during my study I am extremely grateful to The beekeepers union in Kabom, south Darfur, El wiam Apiary in Kordfan, and Ais Eldin Elnobi apiary in Halfa for their assistant in inspecting honeybee colonies. I am so grateful to all owners of apiary in Khartoum My deep thanks to my teacher Abu obida O. Ibrahim for his assistance in inspecting imported colonies Thanks are also extended to the following; Insects collection, Agriculture Research Corporation, Sudan Institute for Natural Sciences and Wild life Research Center for their assistance in identification insects, birds, and animals samples. I would like to thank all my colleagues in the Environment and Natural Resources Institute specially thanks due to Satti and Seif Eldin Thanks are also extended to Awad M. E. and Aiad from -
First Host Plant Record for Pacarina (Hemiptera, Cicadidae)
Neotropical Biology and Conservation 15(1): 77–88 (2020) doi: 10.3897/neotropical.15.e49013 SHORT COMMUNICATION First host plant record for Pacarina (Hemiptera, Cicadidae) Annette Aiello1, Brian J. Stucky2 1 Smithsonian Tropical Research Institute, Panama 2 Florida Museum of Natural History, University of Florida, Gainesville, FL, USA Corresponding author: Brian J. Stucky ([email protected]) Academic editor: P. Nunes-Silva | Received 4 December 2019 | Accepted 20 February 2020 | Published 19 March 2020 Citation: Aiello A, Stucky BJ (2020) First host plant record for Pacarina (Hemiptera, Cicadidae). Neotropical Biology and Conservation 15(1): 77–88. https://doi.org/10.3897/neotropical.15.e49013 Abstract Twenty-nine Pacarina (Hemiptera: Cicadidae) adults, 12 males and 17 females, emerged from the soil of a potted Dracaena trifasciata (Asparagaceae) in Arraiján, Republic of Panama, providing the first rearing records and the first definitive host plant records for any species of Pacarina. These reared Pacarina appear to be morphologically distinct from all known species of Pacarina and likely repre- sent an undescribed species. In light of this finding, we also discuss the taxonomy, biogeography, and ecology of Pacarina. Keywords cicada, Dracaena, host plant, rearing, taxonomy Introduction As far as is known, all cicadas are herbivores that spend the vast majority of their long life cycles as nymphs, living deep underground and feeding on the xylem sap of plant roots (Beamer 1928; Cheung and Marshall 1973; White and Strehl 1978). Be- cause of their relative inaccessibility to researchers, very little information is availa- ble about the host plant associations of juvenile cicadas. Consequently, even though adult cicadas are among the most conspicuous and familiar of all insects, the host plants of most cicada species’ nymphs remain unknown. -
Hemiptera: Coccoidea)
Journal of Agricultural Science; Vol. 10, No. 4; 2018 ISSN 1916-9752 E-ISSN 1916-9760 Published by Canadian Center of Science and Education Efficacy of Libidibia ferrea var. ferrea and Agave sisalana Extracts against Dactylopius opuntiae (Hemiptera: Coccoidea) Rosineide S. Lopes1, Luciana G. Oliveira1, Antonio F. Costa1, Maria T. S. Correia2, Elza A. Luna-Alves Lima3 & Vera L. M. Lima2 1 Agronomic Institute of Pernambuco (IPA), Recife, Brazil 2 Department of Biochemistry, Federal University of Pernambuco (UFPE), Recife, Brazil 3 Department of Mycology, Federal University of Pernambuco (UFPE), Recife, Brazil Correspondence: Vera L. M. Lima, Departamento de Bioquímica, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, s/n, Cidade Universitária, Recife, PE, CEP: 50670-420, Brazil. Tel: 55-(81)-2126-8576. E-mail: [email protected] Received: December 18, 2017 Accepted: January 24, 2018 Online Published: March 15, 2018 doi:10.5539/jas.v10n4p255 URL: https://doi.org/10.5539/jas.v10n4p255 The research is financed by “Fundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco” (FACEPE), National Council for Scientific and Technological Development (CNPq), Coordination for the Improvement of Higher Level -or Education- Personnel) (CAPES), and “Banco do Nordeste do Brasil” (BNB). Abstract The carmine cochineal (Dactylopius opuntiae) is an insect-plague of Opuntia ficus-indica palm crops, causing losses in the production of the vegetable used as forage for the Brazilian semiarid animals. The objective of this work was to analyze the efficacy of plant extracts, insecticides and their combination in the control of D. opuntiae. Leaf and pod extracts of Libidibia ferrea var. -
New Combinations for Six Species Belonging to Cryptotympanini Handlirsch (Hemiptera: Cicadidae), Former Members of the Genus Tibicen Latreille, 1825
Zootaxa 4027 (2): 447–450 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Correspondence ZOOTAXA Copyright © 2015 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.4027.3.9 http://zoobank.org/urn:lsid:zoobank.org:pub:2C08AA8A-8FBB-4291-9A29-63CEB7BD77BA New combinations for six species belonging to Cryptotympanini Handlirsch (Hemiptera: Cicadidae), former members of the genus Tibicen Latreille, 1825 ALLEN F. SANBORN Department of Biology, Barry University, 11300 NE Second Avenue, Miami Shores, FL 33161-6695, USA. E-mail: [email protected] Abstract. The generic status of several species formerly placed in the genus Tibicen is reconsidered based on the recent erection of new genera as well as historical evidence. Subsolanus Moulds, 2015 syn. nov. is shown to be a junior synonym of Auritibicen Lee, 2015. Six species are reassigned from Tibicen to appropriate genera based on morphological characteristics. The genus Tibicen Latreille, 1825 has had a confusing past (see summary in Boulard & Puissant, 2014; Marshall & Hill, 2014; Sanborn, 2014a). A major factor in the confusion was the use of different species as the type species of the genus in Latreille (1825) (Cicada plebeja Scopoli, 1763) and Latreille (1829) (Cicada haematodes Scopoli, 1763), species that are currently classified in different subfamilies. This combined with the limited original descriptions led to confusion as to what taxa should be assigned to the genus. As a result, Tibicen became a convenient place to assign species when it was not known where else the species should be placed and species from all three of the current subfamilies were at one time or another classified in the genus Tibicen. -
Cicada Ovipositors Enhanced with Metals and Other Inorganic Elements Matthew S
www.nature.com/scientificreports OPEN An augmented wood-penetrating structure: Cicada ovipositors enhanced with metals and other inorganic elements Matthew S. Lehnert1*, Kristen E. Reiter1,2, Gregory A. Smith1 & Gene Kritsky3 Few insect species are as popular as periodical cicadas (Magicicada spp.). Despite representing an enormous biomass and numbers that exceed 370/m2 during mass emergences, the extended time period of the underground nymphal stages (up to 17 years) complicates investigations of their life history traits and ecology. Upon emergence, female cicadas mate and then use their ovipositors to cut through wood to lay their eggs. Given the ability to penetrate into wood, we hypothesized that the ovipositor cuticle is augmented with inorganic elements, which could increase hardness and reduce ovipositor fracturing. We used scanning electron microscopy and energy dispersive x-ray spectroscopy to evaluate the material properties of ovipositors of four cicada species, including three species of periodical cicadas. We found 14 inorganic elements of the cuticle, of which P, Ca, Si, Mg, Na, Fe, Zn, Mn, Cl, K, and S show the highest concentrations (%wt) near the apex of the ovipositor, where other structural modifcations for penetrating wood are present. To the best of our knowledge, this is the frst report of metal deposits in the cuticle of true bugs (Hemiptera, >80,000 described species). Te independent origin of traits that perform similar functions represents a cornerstone of natural selection. Examples of such convergent evolution can be found across animal taxa: intelligence among birds and apes1, echolocation among bats and dolphins2, and fuid-feeding mechanisms among fies and butterfies3. -
Coleoptera: Coccinellidae) W
The University of Maine DigitalCommons@UMaine Technical Bulletins Maine Agricultural and Forest Experiment Station 5-1-1972 TB55: Food Lists of Hippodamia (Coleoptera: Coccinellidae) W. L. Vaundell R. H. Storch Follow this and additional works at: https://digitalcommons.library.umaine.edu/aes_techbulletin Part of the Entomology Commons Recommended Citation Vaundell, W.L. and R.H. Storch. 1972. Food lists of Hippodamia (Coleoptera: Coccinellidae). Life Sciences and Agriculture Experiment Station Technical Bulletin 55. This Article is brought to you for free and open access by DigitalCommons@UMaine. It has been accepted for inclusion in Technical Bulletins by an authorized administrator of DigitalCommons@UMaine. For more information, please contact [email protected]. Food Lists of Hippodamia (Coleoptera: Coccinellidae) W.L. Vaundell R.H. Storch UNIVERSITY OF MAINE AT ORONO LIFE SCIENCES AND AGRICULTURE EXPERIMENT STATION MAY 1972 ABSTRACT Food lists for Hippodamia Iredecimpunctata (Linnaeus) and the genus Hippodamia as reported in the literature are given. A complete list of citations is included. ACKNOWLEDGMENT The authors are indebted to Dr. G. W. Simpson (Life Sciences Agriculture Experiment Station) for critically reading the manus and to Drs. M. E. MacGillivray (Canada Department of Agricull and G. W. Simpson for assistance in the nomenclature of the Aphid Research reported herein was supported by Hatch Funds. Food List of Hippodamia (Coleoptera: Coccinellidae) W. L. Vaundell1 and R. H. Storch The larval and adult coccinellids of the subfamily Coccinellinae, except for the Psylloborini, are predaceous (Arnett, 1960). The possi ble use of lady beetles to aid in the control of arthropod pests has had cosmopolitan consideration, for example, Britton 1914, Lipa and Sem'yanov 1967, Rojas 1967, and Sacharov 1915. -
DECEMBER 2018 TREE of the MONTH Scarlet Oak ● Quercus Coccinea RED OAK • BLACK OAK • SPANISH OAK
DECEMBER 2018 TREE OF THE MONTH Scarlet Oak ● Quercus coccinea RED OAK • BLACK OAK • SPANISH OAK Scarlet oak is a medium-sized tree native to eastern and central North America. Scarlet oaks are popular landscape trees because of their fast growth and brilliant autumn color. Scarlet oak grows on sandy and acidic soils, reaching 20-30 meters in height with an open, rounded crown and an alternate branching pattern. Scarlet oaks are fast-growing, shade-intolerant trees that often associate with black oaks (Quercus velutina) and red oaks (Quercus rubra). OPPOSITE BRANCHING PATTERN ALTERNATE BRANCHING PATTERN POINTY LEAVES The leaves are shiny with deep, rounded sinuses, and each lobe has three teeth on the 6p. The leaves turn bright scarlet in autumn. Characteris6cally for oaks, the buds are clustered around the terminal bud at the end of the twig. Each bud is covered with whi6sh hairs on the upper half. The inner bark is pinkish brown and, unusually for oaks, is not bi>er. SPRING BLOOMERS Scarlet oaks Mlower in mid-spring, often May, and bear drooping male catkins (clusters) and female Mlowers singly or in groups of two or three. Acorns develop later in the season in singles or pairs and drop in late Autumn. FOOD FOR ALL Scarlet oak acorns are popular for many wildlife species, from squirrels, mice, and chipmunks, to deer, wild turkeys, and woodpeckers, and jays. TRICKY FELLOW Quercus coccinea is often be confused with the northern red oak (Quercus rubra), black oak (Quercus velutina) and pin oak (Quercus palustris). Tree of the Month is a collabora1on between BEAT, the City of Pi:sfield and Pi:sfield Tree Watch.