A5001013872- Insect and Pesticide Research
- Insect Pest Control Strategies
- Insect-Plant Interactions and Control
- Insect Resistance and Genetics
- Plant and animal studies
- Insect behavior and control techniques
- Insect and Arachnid Ecology and Behavior
- Mosquito-borne diseases and control
- Hemiptera Insect Studies
- Insect Utilization and Effects
- Entomopathogenic Microorganisms in Pest Control
- Essential Oils and Antimicrobial Activity
- Plant Pathogens and Fungal Diseases
- Neurobiology and Insect Physiology Research
- Environmental Toxicology and Ecotoxicology
- Agricultural pest management studies
- Plant Parasitism and Resistance
- Banana Cultivation and Research
- Moringa oleifera research and applications
- Pesticide Exposure and Toxicity
- Ion channel regulation and function
- Insect symbiosis and bacterial influences
- Cassava research and cyanide
- Malaria Research and Control
- Bee Products Chemical Analysis
Universidade Federal de Viçosa
2016-2025
Universidade Federal do Tocantins
2021-2025
Biotech (Brazil)
2023
Beltsville Agricultural Research Center
2023
Universidade Federal Rural de Pernambuco
2023
Instituto Federal de Educação, Ciência e Tecnologia do Pará
2023
Michigan State University
2012-2021
Michigan United
2021
Universidade Federal do Maranhão
2021
Universidade Estadual do Maranhão
2019
Abstract The yellow fever mosquito, Aedes aegypti , particularly in Neotropical regions, is the principal vector of dengue, fever, Zika and Chikungunya viruses. Pyrethroids remain one most used insecticides to control mosquitoes, despite development pyrethroid resistance many mosquito populations worldwide. Here, we report a Brazilian strain A. with high levels (approximately 100–60,000 fold) both type I II pyrethroids. We detected two mutations (V410L F1534C) sodium channel from this...
The Neotropical stink bug Euschistus heros is a major pest in soybean fields. Development of highly species-specific pesticides based on RNA interference (RNAi) could provide new sustainable and environmentally friendly control strategy.Here, the potential RNAi as tool against E. was assessed. First, target gene selection using microinjection approach performed. Seven 15 candidate genes tested exhibited > 95% mortality after hemolymph injection 27.5 ng dsRNA. Subsequently, dsRNA administered...
Background The use of synthetic insecticides is one the most common strategies for controlling disease vectors such as mosquitos. However, their overuse can result in serious risks to human health, environment, well selection insecticidal resistant insect strains. development efficient and eco-friendly control urgent, essential oils have been presented potential alternatives insecticides. Moreover, nanoencapsulation techniques enhance efficiency by protecting from degradation providing a...
Abstract Pyrethrum extracts from flower heads of Chrysanthemum spp. have been used worldwide in insecticides and repellents. While the molecular mechanisms its insecticidal action are known, basis pyrethrum repellency remains a mystery. In this study, we find that principal components pyrethrum, pyrethrins, minor component, (E)-β-farnesene (EBF), each activate specific type olfactory receptor neurons Aedes aegypti mosquitoes. We identify Ae. odorant 31 (AaOr31) as cognate Or for EBF...
Abstract. A common assumption in models of insecticide resistance evolution is the association between and fitness costs absence insecticides. There empirical evidence such associations, but their physiological basis (and mitigation) little investigated. Pyrethroid‐resistant populations maize weevil Sitophilus zeamais (Coleoptera: Curculionidae) offer this opportunity. Pyrethroid species was initially observed five Brazilian states by 1995, phenomenon apparently decreased did not spread to...
Essential oils have been suggested as suitable alternatives for controlling insect pests. However, the potential adaptive responses elicited in insects mitigating actions of these compounds not received adequate attention. Furthermore, is widely reported with traditional insecticides, sublethal exposure to essential might induce stimulatory or contribute development resistance strategies that can compromise management The current study evaluated locomotory and respiratory well number larvae...
The control of the most important pest stored maize, weevil Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae), is mainly achieved with use pyrethroid insecticides. However, intensive these compounds has led to selection resistant populations and compromised efficacy this insect pest. Here, toxicity indoxacarb for a potential in S. was assessed on 13 Brazilian populations. Concentration–mortality bioassays, presence synergists (piperonyl butoxide, triphenyl phosphate, diethyl...
Bees are key pollinators whose population numbers declining, in part, owing to the effects of different stressors such as insecticides and fungicides. We have analysed susceptibility Africanized honeybee, Apis mellifera , stingless bee, Partamona helleri, commercial formulations deltamethrin imidacloprid. The toxicity fungicides based on thiophanate-methyl chlorothalonil were investigated individually combination, with insecticides. Results showed that bees more susceptible than honeybees....
Environmental stress in newly-emerged adult insects can have dramatic consequences on their life traits (e.g., dispersion, survival and reproduction) as adults. For instance, sublethally exposed to environmental stressors insecticides) gain fitness benefits a result of hormesis (i.e., low doses compounds that would be toxic at higher doses). Here, we experimentally tested whether sublethal exposure the insecticide imidacloprid hormetically affect sexual adults Neotropical brown stink bug...
Extremely low frequency electromagnetic field (ELF EMF) pollution from overhead powerlines is known to cause biological effects across many phyla, but these are poorly understood. Honey bees important pollinators the globe and due their foraging flights exposed relatively high levels of ELF EMF in proximity powerlines. Here we ask how acute exposure 50 Hz EMFs at ranging 20-100 µT, found ground level below powerline conductors, 1000-7000 within 1 m affects honey bee olfactory learning,...