Results 71 to 80 of about 18,139 (222)

Pathogen avoidance by insect predators [PDF]

open access: yes, 2008
Insects can detect cues related to the risk of attack by their natural enemies. Pathogens are among the natural enemies of insects and entomopathogenic fungi attack a wide array of host species.
Meyling, Nicolai V.   +3 more
core  

Lack of phenotypic and evolutionary cross-resistance against parasitoids and pathogens in Drosophila melanogaster [PDF]

open access: yes, 2012
BackgroundWhen organisms are attacked by multiple natural enemies, the evolution of a resistance mechanism to one natural enemy will be influenced by the degree of cross-resistance to another natural enemy.
A Fytrou   +52 more
core   +2 more sources

Cellular immune response of Amblyomma sculptum and Amblyomma americanum to entomopathogenic fungi: Implications for biological tick control

open access: yesMedical and Veterinary Entomology, EarlyView.
Amblyomma sculptum showed a plasmatocyte‐dominant haemocyte profile. Beauveria bassiana increased plasmatocytes and reduced granulocytes, whereas Metarhizium robertsii did not cause significant changes. Amblyomma americanum showed a granulocyte‐dominant haemocyte profile. Beauveria bassiana reduced total haemocytes and granulocytes. B.
Cárita de Souza Ribeiro‐Silva   +7 more
wiley   +1 more source

The combination of the entomopathogenic fungus Metarhizium anisopliae with the insecticide Imidacloprid increases virulence against the dengue vector Aedes aegypti (Diptera: Culicidae)

open access: yesParasites & Vectors, 2011
Background Dengue fever transmitted by the mosquito Aedes aegypti, is one of the most rapidly spreading insect borne diseases, stimulating the search for alternatives to current control measures. The dengue vector A.
Samuels Richard I   +3 more
doaj   +1 more source

Suscetibilidade de Gyropsylla spegazziniana (Lizer & Trelles) (Hemiptera: Psyllidae) a Beauveria bassiana (Bals.) Vuill [PDF]

open access: yes, 2013
Gyropsylla spegazziniana is one of the most prominent pest insects of yerba mate culture in all production regions in Brazil, Argentina and Paraguay. Natural enemies have been recorded on G.
Alves, Luis Francisco   +4 more
core  

Deciphering Role of Endophytes in Plant Defences and Biotic Stress Resilience Across Families

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Plant families generate distinct repertoires of specialised metabolites that govern their biotic interactions. Endophytes strengthen host plant defence mechanisms and tolerance to biotic challenges by upregulating metabolite biosynthesis, modifying precursor compounds into more potent forms, or by directly synthesising analogous defence ...
S. Aneeqa Noor   +4 more
wiley   +1 more source

The occurrence of entomopathogenic fungi in soils from mid-field woodlots and adjacent small-scale arable fields

open access: yesActa Mycologica, 2013
The aim of this study was to compare the species composition and the intensity of entomopathogenic fungi occurrence in the soil from mid-field woodlots and adjacent small farmlands.
Cezary Tkaczuk   +2 more
doaj   +1 more source

Using a New Odour-Baited Device to Explore Options for Luring and Killing Outdoor-Biting Malaria Vectors: A Report on Design and Field Evaluation of the Mosquito Landing Box. [PDF]

open access: yes, 2013
Mosquitoes that bite people outdoors can sustain malaria transmission even where effective indoor interventions such as bednets or indoor residual spraying are already widely used.
A Hiscox   +88 more
core   +3 more sources

Organ‐specific terpenoid responses in Tanacetum vulgare are chemotype‐dependent

open access: yesPlant Biology, EarlyView.
Common tansy varieties defend differently: some boost root chemicals against soil pests, while others release stronger leaf scents against aphids. Abstract Specialized metabolites such as terpenoids are known to mediate plant defence mechanisms. However, how terpenoid diversity governs inducible chemistry across organs remains poorly understood.
H. Newrzella   +12 more
wiley   +1 more source

Genotypic Properties of the Entomopathogenic Fungus Nomuraea rileyi

open access: yesBiological Control, 2000
The dimorphic entomopathogenic fungus Nomuraea rileyi, an important biological control agent of various noctuid defoliators, is known to regulate Anticarsia gemmatalis, the key soybean pest in South America and the southeastern United States. At present, very little is known about the isolates that are associated with the endemic or epizootic phases of
Department of Entomology, University of Florida, Gainesville, Florida ( host institution )   +5 more
openaire   +2 more sources

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