Miguel Ángel Navarro Roldán

• PhD Student at University of Lleida

In adult Lepidoptera the labial palps are best known for their role in CO2 detection, but they can also bear sensilla chaetica which function is unknown. The number and distribution of sensilla chaetica in labial palps was studied using a bright field microscope. To determine if these sensilla have a gustatory function, we performed single sensillu...

We examined the role of the most important metabolic enzyme families in the detoxification of neurotoxic insecticides on adult males and females from susceptible populations of Cydia pomonella (L.), Grapholita molesta (Busck), and Lobesia botrana (Denis & Schiffermüller). The interaction between the enzyme families – carboxylesterases (EST), glutat...

The prevailing use of neonicotinoids in pest control has adverse effects on non-target organisms, like honeybees. However, relatively few studies have explored the effect of sublethal neonicotinoid levels on olfactory responses of pest insects, and thus their potential impact on semiochemical surveillance and control methods, such as monitoring or...

In moths, sexual behavior combines female sex pheromone production and calling behavior. The normal functioning of these periodic events requires an intact nervous system. Neurotoxic insecticide residues in the agroecosystem could impact the normal functioning of pheromone communication through alteration of the nervous system. In this study we ass...

Insecticides are the dominant pest management method in fruit and vegetable crops worldwide owing to their quick effect, low cost, and relatively easy application, but they bear negative effects on human health and the environment. Insecticide mode of action (MoA), target species, and sex are variables that could affect insecticide-induced mortalit...

Sublethal insecticide doses may not kill a significant number of insects but they could affect behavior and physiology and thus interfere with behavior-modifying pest control methods, such as the use of lures in mating disruption and attract and kill, or with life history parameters such as fecundity and fertility. Dose-mortality curves by contact...

In Lepidopterans, reproduction involves a complex series of behavioural and physiological events including chemical communication mediated by sex pheromones. Usually females release the pheromone and males respond to it with and oriented flight towards the female. This activity shows a periodic pattern related to the duration of the light and dark...

L’objectif de cette étude est de déterminer les gammes de concentrations sublétales d’insecticides. Nous nous sommes focalisés sur trois espèces de tordeuses (Cydia pomonella (Linnaeus), Grapholita molesta (Busck) et Lobesia botrana (Denis & Schiffmüller)) qui causent des pertes de production sur pommier, pêcher et vigne, respectivement. Ces ravage...

El uso generalizado de insecticidas, en comparación con otras herramientas, es el método de control de plagas más empleado en cultivos hortofrutícolas, debido a su efectividad inmediata, bajo coste y facilidad de aplicación. Sin embargo, los insecticidas tienen efectos negativos sobre la salud humana, generan resistencia, actúan sobre los enemigos...