ABSTRACT In recent years, Aedes albopictus has become the most important invasive mosquito species worldwide. 2018, Ae. was found in a suburban area of Merida, one cities with highest number arbovirus cases Mexico last 10 years. As continues its range expansion, there is need to monitor susceptibility existing insecticide classes, since countries like currently do not consider management progra...

Abstract For many centuries human populations have been suffering and trying to fight with disease-bearing mosquitoes. Emerging reemerging diseases such as Dengue, Zika, Chikungunya affect billions of people around the world recently has appealing control chemical pesticides. Malathion (MT) is one main pesticides used against mosquitoes, vectors these diseases. This study aimed assess cytotoxic...

Insecticide resistance has been known to be prevalent in several insect species including mosquito. It has become a major problem in vector control programs due to pesticide resistance through detoxification enzymes. The present study aimed to compare between the larvicidal action of some organophosphorus insecticides (fenitrothion, malathion and temephos) commonly used in larval control progra...

The susceptibility of Anopheles minimus s.l., Aedes aegypti, Ae. albopictus, and Culex quinquefasciatus to insecticide in northern Thailand was monitored by using the WHO standard susceptibility test. Oneto two-day old female mosquitos, which were reared from wild caught females or immature stages, were exposed to discriminating dosages of insecticides for recommended exposure periods, and the ...

Cytochrome P450-dependent monooxygenases are important in the activation and detoxiWcation of numerous insecticides. In this study, a Drosophila melanogaster Cyp6d4 null mutant was used to determine the role of this P450 in insecticide metabolism. This null mutant was generated by imprecise excision of a mobile P element located upstream to the P450 gene Cyp6d4. Comparative analysis between the...

The sunlight is responsible for the development and continued existence of life on earth. The deleterious effects of sunlight on biological systems are entirely due to radiation. It is widely believed that light has the greatest effect of all the environmental factors. While light does play an important role, very few studies have been conducted to evaluate the interaction of light with other f...

The current study was aimed to investigate on dynamics of propoxur resistance in Anopheles gambiae s.l. populations from N’ dali district northern Benin (West Africa) and also malathion s. l. Toffo southern Benin. Larvae pupae l . mosquitoes were collected the breeding sites Borgou Atlantic departments 2015 2019. WHO susceptibility tests conducted unfed female aged 2-5 days old. bioassays perfo...

background: the german cockroach, blattella germanica (l), is a world wide hygienic pest that is very difficult to control. extensive usage of insecticides may develop resistance to a variety of insecticides, causing failure to control. this study was designed to determine resistance of hospital-collected strains of the german cockroach to carbamate and organophosphorous insecticides. methods: ...

The effects of anthropogenic chemical contaminants on aquatic organisms are largely influenced by underlying environmental conditions. This study evaluated how larval rearing temperature influences the impact of malathion on the fitness of the yellow fever mosquito Aedes aegypti. Larvae were exposed to water control, and low (0.03mg/L) or high (0.05mg/L) malathion dose at 20°C, 25°C and 30°C an...

Assays of malathion content and toxicity to boll weevil, Anthonomus grandis grandis Bohemian, were conducted on boll weevil bait sticks, now marketed as Boll Weevil Attract and Control Tubes (BWACTs; Plato Industries, Houston, TX). In general, the longer BWACTs were in the field, the lower the mortality of weevils that were exposed to them. Bioassays of weevil mortality correlated with hexane w...