Demographic effects of deltamethrin resistance in the Chagas disease vector Triatoma infestans
The objectives of the present study were to describe the demographic consequences of deltamethrin resistance in T. infestans and to establish possible target stages for chemical control in susceptible and resistant colonies. A stage‐classified matrix model was constructed based on the average stage length for susceptible, resistant and reciprocal matings' progeny. The differences between colonies were analysed by prospective and retrospective analysis. The life table parameters indicated reduced fecundity, fertility and population growth in resistant insects. The retrospective analysis suggested the latter was associated...
Source: Medical and Veterinary Entomology - September 27, 2016 Category: Veterinary Research Authors: M. D. GERMANO, M. I. PICOLLO Tags: Original Article Source Type: research
Effects of four commercial fungal formulations on mortality and sporulation in house flies (Musca domestica) and stable flies (Stomoxys calcitrans)
Abstract
The house fly Musca domestica L. (Diptera: Muscidae) and stable fly Stomoxys calcitrans (L.) (Diptera: Muscidae) are major pests of livestock. Biological control is an important tool in an integrated control framework. Increased mortality in filth flies has been documented with entomopathogenic fungi, several strains of which are commercially available. Three strains of Beauveria bassiana (Balsamo‐Crivelli) Vuillemin (Hypocreales: Cordycipitaceae) and one strain of Metarhizium brunneum (Petch) (Hypocreales: Clavicipitaceae) were tested in commercial formulations for pathogenicity against house flies and stable f...
Source: Medical and Veterinary Entomology - August 31, 2016 Category: Veterinary Research Authors: E. N. I. WEEKS, E. T. MACHTINGER, S. A. GEZAN, P. E. KAUFMAN, C. J. GEDEN Tags: Original Article Source Type: research
First record of Stegomyia albopicta (= Aedes albopictus) in Morocco: a major threat to public health in North Africa?
Abstract.
The Asian tiger mosquito Stegomyia albopicta (= Aedes albopictus) (Diptera: Culicidae), native to Asian forests, is a nuisance mosquito and is responsible for the transmission of arboviruses of public health importance, such as dengue, chikungunya and Zika viruses. It has colonized parts of all continents, except Antarctica, over the past 30–40 years. However, to date, the only records of S. albopicta in North Africa refer to occasional collections in 2010 and 2014 in Algeria. In early September 2015, S. albopicta larvae and adults were collected in a district of Rabat, Morocco. Morphological identifica...
Source: Medical and Veterinary Entomology - August 31, 2016 Category: Veterinary Research Authors: A. BENNOUNA, T. BALENGHIEN, H. EL RHAFFOULI, F. SCHAFFNER, C. GARROS, L. GARD ÈS, Y. LHOR, S. HAMMOUMI, G. CHLYEH, O. FASSI FIHRI Tags: Short Communication Source Type: research
Cuticle hydrolysis in four medically important fly species by enzymes of the entomopathogenic fungus Conidiobolus coronatus
Abstract.
Entomopathogenic fungi infect insects via penetration through the cuticle, which varies remarkably in chemical composition across species and life stages. Fungal infection involves the production of enzymes that hydrolyse cuticular proteins, chitin and lipids. Host specificity is associated with fungus–cuticle interactions related to substrate utilization and resistance to host‐specific inhibitors. The soil fungus Conidiobolus coronatus (Constantin) (Entomophthorales: Ancylistaceae) shows virulence against susceptible species. The larvae and pupae of Calliphora vicina (Robineau‐Desvoidy) (Diptera: Calliphor...
Source: Medical and Veterinary Entomology - August 31, 2016 Category: Veterinary Research Authors: M. I. BOGU Ś, E. WŁÓKA, A. WROŃSKA, A. KACZMAREK, M. KAZEK, K. ZALEWSKA, M. LIGĘZA ‐ ŻUBER, M. GOŁĘBIOWSKI Tags: Original Article Source Type: research
