Predicting Aphid Abundance on Winter Wheat Using Suction Trap Catches
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Virulence of Two Entomophthoralean Fungi, Pandora Neoaphidis
Article Virulence of Two Entomophthoralean Fungi, Pandora neoaphidis and Entomophthora planchoniana, to Their Conspecific (Sitobion avenae) and Heterospecific (Rhopalosiphum padi) Aphid Hosts Ibtissem Ben Fekih 1,2,3,*, Annette Bruun Jensen 2, Sonia Boukhris-Bouhachem 1, Gabor Pozsgai 4,5,*, Salah Rezgui 6, Christopher Rensing 3 and Jørgen Eilenberg 2 1 Plant Protection Laboratory, National Institute of Agricultural Research of Tunisia, Rue Hédi Karray, Ariana 2049, Tunisia; [email protected] 2 Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, 3rd floor, 1871 Frederiksberg C, Denmark; [email protected] (A.B.J.); [email protected] (J.E.) 3 Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; [email protected] 4 State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China 5 Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China 6 Department of ABV, National Agronomic Institute of Tunisia, 43 Avenue Charles Nicolle, 1082 EL Menzah, Tunisia; [email protected] * Correspondence: [email protected] (I.B.F.); [email protected] (G.P.) Received: 03 December 2018; Accepted: 02 February 2019; Published: 13 February 2019 Abstract: Pandora neoaphidis and Entomophthora planchoniana (phylum Entomophthoromycota) are important fungal pathogens on cereal aphids, Sitobion avenae and Rhopalosiphum padi. Here, we evaluated and compared for the first time the virulence of these two fungi, both produced in S. avenae cadavers, against the two aphid species subjected to the same exposure. Two laboratory bioassays were carried out using a method imitating entomophthoralean transmission in the field. -
Assessing Cereal Aphid Diversity and Barley Yellow Dwarf Risk in Hard Red Spring Wheat and Durum
ASSESSING CEREAL APHID DIVERSITY AND BARLEY YELLOW DWARF RISK IN HARD RED SPRING WHEAT AND DURUM A Thesis Submitted to the Graduate Faculty of the North Dakota State University of Agriculture and Applied Science By Samuel Arthur McGrath Haugen In Partial Fulfillment of the Requirements for the Degree of MASTER OF SCIENCE Major Department: Plant Pathology March 2018 Fargo, North Dakota North Dakota State University Graduate School Title Assessing Cereal Aphid Diversity and Barley Yellow Dwarf Risk in Hard Red Spring Wheat and Durum By Samuel Arthur McGrath Haugen The Supervisory Committee certifies that this disquisition complies with North Dakota State University’s regulations and meets the accepted standards for the degree of MASTER OF SCIENCE SUPERVISORY COMMITTEE: Dr. Andrew Friskop Co-Chair Dr. Janet Knodel Co-Chair Dr. Zhaohui Liu Dr. Marisol Berti Approved: 4/10/18 Dr. Jack Rasmussen Date Department Chair ABSTRACT Barley yellow dwarf (BYD), caused by Barley yellow dwarf virus and Cereal yellow dwarf virus, and is a yield limiting disease of small grains. A research study was initiated in 2015 to identify the implications of BYD on small grain crops of North Dakota. A survey of 187 small grain fields was conducted in 2015 and 2016 to assess cereal aphid diversity; cereal aphids identified included, Rhopalosiphum padi, Schizaphis graminum, and Sitobion avenae. A second survey observed and documented field absence or occurrence of cereal aphids and their incidence. Results indicated prevalence and incidence differed among respective growth stages and a higher presence of cereal aphids throughout the Northwest part of North Dakota than previously thought. -
The Debate on Plant and Crop Biodiversity and Biotechnology
The Debate on Plant and Crop Biodiversity and Biotechnology Klaus Ammann, [email protected] Version from December 15, 2017, 480 full text references, 117 pp. ASK-FORCE contribution No. 11 Nearly 470 references on biodiversity and Agriculture need still to be screened and selected. Contents: 1. Summary ........................................................................................................................................................................... 3 2. The needs for biodiversity – the general case ................................................................................................................ 3 3. Relationship between biodiversity and ecological parameters ..................................................................................... 5 4. A new concept of sustainability ....................................................................................................................................... 6 4.1. Revisiting the original Brundtland definition of sustainable development ...............................................................................................................7 4.2. Redefining Sustainability for Agriculture and Technology, see fig. 1 .........................................................................................................................8 5. The Issue: unnecessary stigmatization of GMOs .......................................................................................................... 12 6. Types of Biodiversity ...................................................................................................................................................... -
The Occurrence of Aphids on Sweet Maize in South-Eastern Poland
ISSN 1644-0692 www.acta.media.pl Acta Sci. Pol. Hortorum Cultus, 14(6) 2015, 39-54 THE OCCURRENCE OF APHIDS ON SWEET MAIZE IN SOUTH-EASTERN POLAND Paweł K. Bereś Institute of Plant Protection – National Research Institute in Poznań, Regional Experimental Station in Rzeszów Abstract. In Poland sweet maize is a small-acreage crop, and because of this no complex plan for the protection of this plant against pests and other harmful organisms has been developed. Since the enforcement of integrated pest management (IPM) in the EU in 2014 the use of chemical control methods has to be supported by relevant data on the biology of the controlled pest. A very limited number of studies have been carried out in Poland on the harmful entomofauna of sweet maize, including aphids. Studies were carried out in 2009–2014 on a field of sweet maize (Zea mays L. var. saccharata), ‘Candle’ cultivar, in south-eastern Poland. In the study years the infestation with aphids was from very low to moderately high. Seven aphid species were identified on sweet maize. The above-ground plant parts were infested with Rhopalosiphum padi L., Metopolophium dirhodum Walk., Sitobion avenae F., Rhopalosiphum maidis Fitch., Aphis fabae Scop. and Myzus persicae Sulz. A small number of individuals representing Tetraunera ulmi L. were found on the root systems of plants. R. padi was the dominant aphid species in all study years. M. dir- hodum and S. aveane occurred in lower numbers, while other aphid species formed single colonies. Aphids began to infest maize plants from the last ten days of April or from May, and ended feeding at the end of September or in the first half of October. -
A Contribution to the Aphid Fauna of Greece
Bulletin of Insectology 60 (1): 31-38, 2007 ISSN 1721-8861 A contribution to the aphid fauna of Greece 1,5 2 1,6 3 John A. TSITSIPIS , Nikos I. KATIS , John T. MARGARITOPOULOS , Dionyssios P. LYKOURESSIS , 4 1,7 1 3 Apostolos D. AVGELIS , Ioanna GARGALIANOU , Kostas D. ZARPAS , Dionyssios Ch. PERDIKIS , 2 Aristides PAPAPANAYOTOU 1Laboratory of Entomology and Agricultural Zoology, Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Nea Ionia, Magnesia, Greece 2Laboratory of Plant Pathology, Department of Agriculture, Aristotle University of Thessaloniki, Greece 3Laboratory of Agricultural Zoology and Entomology, Agricultural University of Athens, Greece 4Plant Virology Laboratory, Plant Protection Institute of Heraklion, National Agricultural Research Foundation (N.AG.RE.F.), Heraklion, Crete, Greece 5Present address: Amfikleia, Fthiotida, Greece 6Present address: Institute of Technology and Management of Agricultural Ecosystems, Center for Research and Technology, Technology Park of Thessaly, Volos, Magnesia, Greece 7Present address: Department of Biology-Biotechnology, University of Thessaly, Larissa, Greece Abstract In the present study a list of the aphid species recorded in Greece is provided. The list includes records before 1992, which have been published in previous papers, as well as data from an almost ten-year survey using Rothamsted suction traps and Moericke traps. The recorded aphidofauna consisted of 301 species. The family Aphididae is represented by 13 subfamilies and 120 genera (300 species), while only one genus (1 species) belongs to Phylloxeridae. The aphid fauna is dominated by the subfamily Aphidi- nae (57.1 and 68.4 % of the total number of genera and species, respectively), especially the tribe Macrosiphini, and to a lesser extent the subfamily Eriosomatinae (12.6 and 8.3 % of the total number of genera and species, respectively). -
Molecular Tracking of the Effects of Alternative Prey on Rates of Aphid Consumption in the Field
Molecular Ecology (2004) 13, 3549–3560 doi: 10.1111/j.1365-294X.2004.02331.x PreyBlackwell Publishing, Ltd. selection by linyphiid spiders: molecular tracking of the effects of alternative prey on rates of aphid consumption in the field JAMES D. HARWOOD,* KEITH D. SUNDERLAND† and WILLIAM O. C. SYMONDSON* *School of Biosciences, Cardiff University, PO Box 915, Cardiff CF10 3TL, UK, †Horticulture Research International, Wellesbourne, Warwick CV35 9EF, UK Abstract A molecular approach, using aphid-specific monoclonal antibodies, was used to test the hypothesis that alternative prey can affect predation on aphids by linyphiid spiders. These spiders locate their webs in cereal crops within microsites where prey density is high. Pre- vious work demonstrated that of two subfamilies of Linyphiidae, one, the Linyphiinae, is web-dependent and makes its webs at sites where they were more likely to intercept flying insects plus those (principally aphids) falling from the crop above. The other, the Erigoninae, is less web-dependent, making its webs at ground level at sites with higher densities of ground-living detritivores, especially Collembola. The guts of the spiders were analysed to detect aphid proteins using enzyme-linked immunosorbent assay (ELISA). Female spi- ders were consuming more aphid than males of both subfamilies and female Linyphiinae were, as predicted, eating more aphid than female Erigoninae. Rates of predation on aphids by Linyphiinae were related to aphid density and were not affected by the availability of alternative prey. However, predation by the Erigoninae on aphids was significantly affected by Collembola density. Itinerant Linyphiinae, caught away from their webs, contained the same concentration of aphid in their guts as web-owners. -
Cereal Aphids G
G1284 (Revised August 2005) Cereal Aphids G. L. Hein, Extension Entomologist, J. A. Kalisch, Extension Technologist, and J. Thomas, Research Coordinator to living young. A female may produce two to three young Identification and general discussion of the cereal per day under warm conditions, and females may mature in aphid species most commonly found in Nebraska small 7-10 days. This tremendous reproduction potential can result grains, corn, sorghum and millet. in rapid aphid population buildup. Males of some species are seldom if ever seen. Cereal aphids can be a serious threat to several Nebraska Both winged and wingless aphids may be present in the crops. Aphid feeding may cause direct damage to the plant or field. Winged forms are produced when the quality of the host result in transmission of plant diseases. Aphids also may cause plant declines, such as at maturity. Other factors, including damage by injecting toxic salivary secretions during feeding. temperature, photoperiod or seasonality, and population density In Nebraska the most serious cereal aphid problems result also may be involved. The ability of aphids to use flight for from Russian wheat aphid infestations on wheat and barley dispersal is an important factor that contributes to the status and greenbug infestations on sorghum and to a lesser extent of these insects as pests. on wheat. Growers must monitor their crops for these aphids. Greenbug, Schizaphis graminum (Rondani) Several other cereal aphid species also may be present, but they seldom cause significant damage. Accurate aphid identi- The greenbug is a light green aphid with a dark green fication is necessary to make the best management decisions. -
Effects of Nitrogen Fertilization on the Life History of the Madeira Mealybug
Clemson University TigerPrints All Theses Theses 12-2015 Effects of Nitrogen Fertilization on the Life History of the Madeira Mealybug (Phenacoccus madeirensis) and the Molecular Composition of its Host Plant Stephanie Alliene Rhodes Clemson University Follow this and additional works at: https://tigerprints.clemson.edu/all_theses Recommended Citation Rhodes, Stephanie Alliene, "Effects of Nitrogen Fertilization on the Life History of the Madeira Mealybug (Phenacoccus madeirensis) and the Molecular Composition of its Host Plant" (2015). All Theses. 2584. https://tigerprints.clemson.edu/all_theses/2584 This Thesis is brought to you for free and open access by the Theses at TigerPrints. It has been accepted for inclusion in All Theses by an authorized administrator of TigerPrints. For more information, please contact [email protected]. EFFECTS OF NITROGEN FERTILIZATION ON THE LIFE HISTORY OF THE MADEIRA MEALYBUG (PHENACOCCUS MADEIRENSIS) AND THE MOLECULAR COMPOSITION OF ITS HOST PLANT A Thesis Presented to the Graduate School of Clemson University In Partial Fulfillment of the Requirements for the Degree Master of Science Entomology by Stephanie Alliene Rhodes December 2015 Accepted by: Dr. Juang-Horng Chong, Committee Co-Chair Dr .Matthew Turnbull, Committee Co-Chair Dr. Peter Adler Dr. Dara Park ABSTRACT The aim of this study was to investigate how different nitrogen fertilization rates of host-plants influence the development, fecundity, and nutritional status of a pest insect, the Madeira mealybug (Phenococcus madeirensis Green, Hemiptera: Psuedococcidae). This study evaluated the effects of nitrogen fertilization (0, 75, 150 and 300 ppm N) on the growth, % nitrogen, % carbon, lipid, and protein contents of basil plants (Ocimum basilicum L., Lamiaceae), and the subsequent impacts of host-plant nutritional status on the life history and total lipid and protein contents of the Madeira mealybug. -
Wheat Aphid CP
INDUSTRY BIOSECURITY PLAN FOR THE GRAINS INDUSTRY Threat Specific Contingency Plan Wheat aphid Sitobion avenae Prepared by Rob Weppler and Plant Health Australia March 2009 PLANT HEALTH AUSTRALIA | Contingency Plan – Wheat aphid (Sitobion avenae) Disclaimer The scientific and technical content of this document is current to the date published and all efforts were made to obtain relevant and published information on the pest. New information will be included as it becomes available, or when the document is reviewed. The material contained in this publication is produced for general information only. It is not intended as professional advice on any particular matter. No person should act or fail to act on the basis of any material contained in this publication without first obtaining specific, independent professional advice. Plant Health Australia and all persons acting for Plant Health Australia in preparing this publication, expressly disclaim all and any liability to any persons in respect of anything done by any such person in reliance, whether in whole or in part, on this publication. The views expressed in this publication are not necessarily those of Plant Health Australia. Further information For further information regarding this contingency plan, contact Plant Health Australia through the details below. Address: Suite 5, FECCA House 4 Phipps Close DEAKIN ACT 2600 Phone: +61 2 6215 7700 Fax: +61 2 6260 4321 Email: [email protected] Website: www.planthealthaustralia.com.au | PAGE 2 PLANT HEALTH AUSTRALIA | Contingency Plan – Wheat -
Sitobion) Miscanthi (Takahashi) (Homoptera: Aphididae
International Journal of Research Studies in Biosciences (IJRSB) Volume 2, Issue 9, October 2014, PP 17-41 ISSN 2349-0357 (Print) & ISSN 2349-0365 (Online) www.arcjournals.org Systematics, Nymphal Characteristics and Food Plants of Sitobion (Sitobion) Miscanthi (Takahashi) (Homoptera: Aphididae) Abhilasha Srivastava Rajendra Singh Department of Zoology Department of Zoology D.D.U. Gorakhpur University D.D.U. Gorakhpur University Gorakhpur, India Gorakhpur, India [email protected] [email protected] Abstract: The wheat aphid, Sitobion miscanthi (Takahashi) (Aphididae: Hemiptera) is a destructive aphid, native to Formosa but now distributed in many wheat growing countries of the world. It is a small (apterae 3.05-3.45 mm, alatae 2.35–2.92 mm) greenish to brownish aphid with dark siphunculi and light coloured cauda. Young ones are yellowish green in colour while grown-ups are light brownish to blackish brown. In India, it is reported on 84 plant species belonging to 13 plant families. It infests especially plant families Poaceae (Graminae). In northeastern Uttar Pradesh it was observed on feeding five host plants: Avena sativa L., Hordeum vulgare L., Pennisetum glaucum (L.) R. Br., Phalaris minor Retz, and Triticum aestivum L. In this article the taxonomic status, synonymy, economic importance, distribution, life history, and food plants of S. miscanthi were described. The adult parthenogenetic viviparous apterae and alatae as well as alate male (sexual morph, not recorded in the study area) were morphologically described giving the morphometry of all taxonomic characters along with illustrations. Several taxonomic characters of the first to fourth instar nymphs of apterous morph of S. -
Using Species Traits to Understand the Mechanisms Driving Pollination and Pest Control Ecosystem Services
Using species traits to understand the mechanisms driving pollination and pest control ecosystem services Arran Greenop (B.Sc., MRes) March 2020 Thesis submitted for the degree of Doctor of Philosophy Contents Summary ...................................................................................................................... iv List of figures ................................................................................................................. v List of tables .................................................................................................................. vi Acknowledgements ...................................................................................................... viii Declarations ................................................................................................................. viii Statement of authorship ................................................................................................ ix 1. Chapter 1. Thesis introduction ....................................................................................... 1 1.1. Background ............................................................................................................... 1 1.2. Thesis outline ............................................................................................................ 8 2. Chapter 2. Functional diversity positively affects prey suppression by invertebrate predators: a meta-analysis ................................................................................................. -
Entomophthorales on Cereal Aphids
Pesticides Research No. 53 2001 Bekæmpelsesmiddelforskning fra Miljøstyrelsen Entomophthorales on cereal aphids Characterisation, growth, virulence, epizootiology and potiential for microbial control Charlotte Nielsen, Jørgen Eilenberg and Karsten Dromph The Royal Veterinary and Agricultural University. Department of Ecology The Danish Environmental Protection Agency will, when opportunity offers, publish reports and contributions relating to environmental research and development projects financed via the Danish EPA. Please note that publication does not signify that the contents of the reports necessarily reflect the views of the Danish EPA. The reports are, however, published because the Danish EPA finds that the studies represent a valuable contribution to the debate on environmental policy in Denmark. Contents Preface ........................................................................................................... 5 Summary and conclusions ........................................................................... 6 Sammenfatning og konklusioner................................................................. 8 1 INTRODUCTION..........................................................................................10 1.1 BACKGROUND ..............................................................................................10 1.2 LIFE CYCLE OF ENTOMOPHTHORALES ..........................................................11 1.3 PROJECT OBJECTIVES....................................................................................12