Results: 25

In vitro efficacy of Duddingtonia flagrans against nematodes of sheep based on in vivo calculations

Abstract Duddingtonia flagrans has been tested as an alternative parasite control, but data from in vitro experiments based on in vivo calculations describing nematophagous fungi predation in nematodes are restricted. The objective of this work was to determine the efficacy of D. flagrans against sheep n...

Entomopathogenic fungi and their potential for the management of Aedes aegypti (Diptera: Culicidae) in the Americas

Mem. Inst. Oswaldo Cruz; 113 (3), 2018
Classical biological control has been used extensively for the management of exotic weeds and agricultural pests, but never for alien insect vectors of medical importance. This simple but elegant control strategy involves the introduction of coevolved natural enemies from the centre of origin of the targ...

Selection of Bacillus thuringiensis strains toxic to cotton boll weevil (Anthonomus grandis, Coleoptera: Curculionidae) larvae

Rev. argent. microbiol; 49 (3), 2017
Preliminary bioassays with whole cultures (WC) of 124 Bacillus thuringiensis strains were performed with neonate larvae of Anthonomus grandis, a major cotton pest in Argentina and other regions of the Americas. Three exotic and four native strains were selected for causing more than 50% mortality. All of...

Variability study of entomopathogenic nematode populations (Heterorhabditidae) from Argentina

Braz. j. biol; 77 (3), 2017
Abstract Entomopathogenic nematodes (EPN) belonging to the Heterorhabditidae family are lethal parasites of soil-dwelling insects. Two species were reported in Argentina: Heterorhabditis argentinensis and Heterorhabditis bacteriophora characterized mainly by morphometric features. In this work a comparat...

Screening of plant extracts and fractions on Aedes aegypti larvae found in the state of Mato Grosso do Sul (linnaeus, 1762) (culicidae)

An. acad. bras. ciênc; 89 (2), 2017
ABSTRACT The constant use of chemical insecticides for Aedes aegypti control has caused resistance in the mosquito populations. Thus, the objective of this study was to analyze the larvicidal potential of extracts and fractions of plants on A. aegypti larvae. The analysis included sixty one extracts and ...

Isolation of entomopathogenic nematodes in an apple orchard in Southern Brazil and its virulence to Anastrepha fraterculus (Diptera: Tephritidae) larvae, under laboratory conditions

Braz. j. biol; 77 (1), 2017
Abstract Entomopathogenic nematodes (EPNs) are a promising alternative to integrated control in many fruit pests. Few studies were made on the relationship of Anastrepha fraterculus natural population with native EPNs population and other biotic and abiotic factors. The aim of this work was to verify the...

Efficacy of epiphytic bacteria to prevent northern leaf blight caused by Exserohilum turcicum in maize

Rev. argent. microbiol; 49 (1), 2017
Eight potential biological control agents (BCAs) were evaluated in planta in order to assess their effectiveness in reducing disease severity of northern leaf blight caused by Exserohilum turcicum. The assay was carried out in greenhouse. Twenty-six-day-old plants, V4 phenological stage, were inoculated ...

Insect deterrent and nematicidal screening of microfungi from Mexico and anti-aphid compounds from Gliomastix masseei

Rev. argent. microbiol; 49 (1), 2017
Fungal metabolites are promising alternatives for the development of biorational pesticides. In this sense, microfungi from tropical regions are valuable sources of natural compounds for pest management. With the aim of broadening the search for new eco-friendly products to manage plant pests, this study...

Evaluación del crecimiento de cuatro especies del género Bacillus sp, primer paso para entender su efecto biocontrolador sobre Fusarium sp

Anon.
NOVA publ. cient; 14 (26), 2016
Evaluar las condiciones de crecimiento de cuatro especies de Bacillus sp. nativas a escala de 10ml en Medio Mínimo de Sales (MMS) como primer paso para entender su acción biocontroladora contra Fusarium sp. Métodos. El procedimiento para evaluar el crecimiento de los aislamientos UCMC-TB1, UCMC-TB2, U...