Browsing NIBIO Brage by Author "Klingen, Ingeborg"
Now showing items 1-17 of 17
-
Are fungal epizootics a sign of successful biological control of cereal aphids?
Saussure, Stephanie; Hjelkrem, Anne-Grete Roer; Klingen, Ingeborg; Meadow, Richard; Holst, Niels (Peer reviewed; Journal article, 2023-07-26)Pandora neoaphidis is a common entomopathogenic fungus on Sitobion avenae, which is an important aphid pest on cereals in Europe. Pandora neoaphidis is known to cause epizootics (i.e. an unusually high prevalence of infected ... -
Authorization of microbial plant protection products in the Scandinavian countries: a comparative analysis
Kvakkestad, Valborg; Sundbye, Anette; Gwynn, Roma; Klingen, Ingeborg (Peer reviewed; Journal article, 2020-02-05)The EU has developed a Directive on Sustainable Use of Chemical Pesticides (2009/128/EC) (SUD) that aims to enhance the use of non-chemical alternatives to pesticides like microbial plant protection products (PPP). The ... -
Begrenset kartlegging av virusoverførende bladlus i potet i Norge i 2011
Klingen, Ingeborg; Eklo, Toril; Spetz, Carl (Bioforsk rapport;7(105) 2012, Research report, 2012-02-02)Bladlusoverført virus er et problem i potet i Norge. Hvert år er det settepotetpartier i den sertifiserte avlen som ikke kan godkjennes fordi innholdet av PVY/PVA er for høye. For høyt virusinnhold i potetprodusentenes ... -
Bærekraft i norsk jordbruksproduksjon. Kunnskapsstatus for videre analyser
Bakken, Anne Kjersti; Bechmann, Marianne; Bonesmo, Helge; Flaten, Ola; Gustavsen, Geir Wæhler; Haukås, Torbjørn; Hegrenes, Agnar; Johansen, Line; Klingen, Ingeborg; Kværnø, Sigrun; Skarbøvik, Eva; Steinshamn, Håvard; Stenrød, Marianne; Winger, Anja Celine; Øgaard, Anne Falk; Korsæth, Audun (NIBIO Rapport, Research report, 2023)Rapporten inneholder ei sammenstilling av kunnskap om status for miljømessig, økonomisk og sosial bærekraft i norsk jordbruksproduksjon og er svar på et oppdrag som NIBIO fikk fra Landbruks- og matdepartementet i november ... -
Cereal straw mulching in strawberry—A facilitator of plant visits by edaphic predatory mites at night?
Esteca, Fernanda de Cássia Neves; Trandem, Nina; Klingen, Ingeborg; Santos, Jandir Cruz; Delalibera Júnior, Italo; de Moraes, Gilberto José (Peer reviewed; Journal article, 2020-06-13)In Norway, strawberry producers use cereal straw mulching to prevent berries from contacting the soil and to control weeds. We hypothesized that organic matter such as straw mulch also favors the maintenance of predatory ... -
Computer-assisted image processing to detect spores from the fungus Pandora neoaphidis
Korsnes, Reinert; Westrum, Karin; Fløistad, Erling; Klingen, Ingeborg (Journal article; Peer reviewed, 2016)This contribution demonstrates an example of experimental automatic image analysis to detect spores prepared on microscope slides derived from trapping. The application is to monitor aerial spore counts of the entomopathogenic ... -
The effect of climate variability in the efficacy of the entomopathogenic fungus Metarhizium acridum against the desert locust Schistocerca gregaria
Kamga, Samuel F.; Ndjomatchoua, Frank T.; Guimapi, Ritter A.; Klingen, Ingeborg; Tchawoua, Clément; Hjelkrem, Anne-Grete Roer; Thunes, Karl H; Kakmeni, Francois M. (Peer reviewed; Journal article, 2022-05-09)Despite substantial efforts to control locusts they remain periodically a major burden in Africa, causing severe yield loss and hence loss of food and income. Distribution maps indicating the value of the basic reproduction ... -
Effect of three isolates of Pandora neoaphidis from a single population of Sitobion avenae on mortality, speed of kill and fecundity of S. avenae and Rhopalosiphum padi at different temperatures
Saussure, Stephanie; Westrum, Karin; Hjelkrem, Anne-Grete Roer; Klingen, Ingeborg (Journal article; Peer reviewed, 2019)We studied the effect of three Pandora neoaphidis isolates from one Sitobion avenae population, three temperatures, and two aphid species namely S. avenae and Rhopalosiphum padi on (i) aphid mortality, (ii) time needed to ... -
Entomopathogenic fungal conidia marginally affect the behavior of the predators Orius majusculus (Hemiptera: Anthocoridae) and Phytoseiulus persimilis (Acari: Phytoseiidae) foraging for healthy Tetranychus urticae (Acari: Tetranychidae)
Jacobsen, Stine K.; Klingen, Ingeborg; Eilenberg, Jørgen; Markussen, Bo; Sigsgaard, Lene (Journal article; Peer reviewed, 2019-11-20)We determined how conidia of arthropod-pathogenic fungi on leaves affected the behavior of two predators—Orius majusculus (Hemiptera: Anthocoridae) and Phytoseiulus persimilis (Acari: Phytoseiidae)—when offered a choice ... -
Fungal isolate and crop cultivar influence the beneficial effects of root inoculation with entomopathogenic fungi in strawberry
Canassa, Fernanda; D'Alessandro, Celeste P.; Sousa, Sidcleide B.; Demétrio, Clarice G. B.; Meyling, Nicolai Vitt; Klingen, Ingeborg; Delalibera Jr., Italo (Peer reviewed; Journal article, 2019-10-28)BACKGROUND Root inoculations of crop plants with beneficial fungi constitute a promising strategy for growth promotion and control of above‐ground pests and diseases. Here, strawberry roots (cultivar ‘Albion’ and ‘Pircinque’) ... -
Interaction between the Bird Cherry-Oat Aphid (Rhopalosiphum padi) and Stagonospora Nodorum Blotch (Parastagonospora nodorum) on Wheat
Asalf, Belachew; Ficke, Andrea; Klingen, Ingeborg (Peer reviewed; Journal article, 2021-01-06)Simple Summary The bird cherry-oat aphid and the fungal plant pathogen causing stagonospora nodorum blotch (SNB) are common pests of wheat. Plants are under constant attack by multiple pests and diseases but there are ... -
Linking spatial distribution of Rhipicephalus appendiculatus to climatic variables important for the successful biocontrol by Metarhizium anisopliae in Eastern Africa
Guimapi, Ritter A.; Klingen, Ingeborg; Tonnang, Henri E. Z.; Nana, Paulin (Peer reviewed; Journal article, 2022-12-22)Cattle production is constantly threatened by diseases like East Coast fever, also known as theileriosis, caused by the protozoan parasite Theileria parva which is transmitted by ticks such as the brown ear tick, Rhipicephalus ... -
Mulching with coffee husk and pulp in strawberry affects edaphic predatory mite and spider mite densities
de Cássia Neves Esteca, Fernanda; Rodrigues, Luis Rodolfo; de Moraes, Gilberto José; Delalibera, Italo, Júnior; Klingen, Ingeborg (Journal article; Peer reviewed, 2018-10-06)Mulching of soil beds of strawberry fields is usually done with polyethylene film in southern Minas Gerais state, Brazil. This material is relatively expensive and difficult to discard after use. In some countries, mulching ... -
Natural Occurrence of Entomopathogenic Fungi as Endophytes of Sugarcane (Saccharum officinarum) and in Soil of Sugarcane Fields
Kasambala, Trust; Meadow, Richard; Meyling, Nicolai Vitt; Klingen, Ingeborg (Peer reviewed; Journal article, 2021-02-13)Simple Summary Sugarcane, an important cash crop in Malawi, is susceptible to numerous insect pests, and many farmers rely heavily on chemical insecticides for their control. Biopesticides containing insect pathogens are ... -
Plantevernmidler i etanol fra insektfeller (Malaisefeller) i semi-naturlig mark; Relevans for å vurdere påvirkning av miljøgifter på insektfunn
Stenrød, Marianne; Klingen, Ingeborg; Hatteland, Bjørn Arild; Bayr, Ulrike; Dramstad, Wenche; Odenmarck, Sven R. (NIBIO Rapport, Research report, 2023)Her presenteres resultater fra en undersøkelse av forekomst av miljøgifter/ plantevernmidler ekstrahert fra insekter samlet i Malaisefeller i den løpende nasjonale insektovervåkingen. Undersøkelsen er gjennomført av NIBIO ... -
Prediction of Sporulation and Germination by the Spider Mite Pathogenic Fungus Neozygites floridana (Neozygitomycetes: Neozygitales: Neozygitaceae) Based on Temperature, Humidity and Time
Castro, Thiago; Moral, Rafael de Andrade; Demétrio, Clarice Garcia Borges; Delalibera, Italo Jr.; Klingen, Ingeborg (Journal article; Peer reviewed, 2018-06-19)Neozygites floridana is a pathogenic fungus and natural enemy of the two-spotted spider mite, Tetranychus urticae (Acari: Tetranychidae), which is an important polyphagous plant pest. The aim of this study was to reveal ... -
Root inoculation of strawberry with the entomopathogenic fungi Metarhizium robertsii and Beauveria bassiana reduces incidence of the twospotted spider mite and selected insect pests and plant diseases in the field
Canassa, Fernanda; Esteca, Fernanda C. N.; Moral, Rafael A.; Meyling, Nicolai Vitt; Klingen, Ingeborg; Delalibera, Italo (Journal article; Peer reviewed, 2019-08-14)The effect of inoculation of strawberry roots by two entomopathogenic fungal isolates, Metarhizium robertsii (ESALQ 1622) and Beauveria bassiana (ESALQ 3375), on naturally occurring arthropod pests and plant diseases was ...