Article
Entomology
Kang Wang, Jun Ning Zhao, Jiao Yang Bai, Yun Zhu Shang, Si Qian Zhang, Yi Fan Hou, Mao Hua Chen, Zhao Jun Han
Summary: Pyrethroid insecticides have been widely used but pest resistance to them, particularly through target-site mechanisms like the VGSC M918L mutation, is a growing concern. This study found that the M918L mutation in Rhopalosiphum padi resulted in significant resistance to certain pyrethroids but also led to a fitness cost, including decreased longevity and fecundity. Additionally, the fitness cost was found to be correlated with the initial resistance allele frequency, showing the complex relationship between resistance and fitness in insect populations.
JOURNAL OF ECONOMIC ENTOMOLOGY
(2021)
Article
Environmental Sciences
Christian Kjaer, Peter Borgen Sorensen, Peter Wiberg-Larsen, Jesper Bak, Marianne Bruus, Beate Strandberg, Soren Erik Larsen, Jes Jessen Rasmussen, Morten Strandberg
Summary: This study used a risk model to identify species most likely to be affected by insecticides during the adult life stage, with mayflies being the least vulnerable and stoneflies and caddisflies being more susceptible. The findings suggest that species with specific life cycle characteristics should be targeted for future ecotoxicological tests.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Environmental Sciences
Bartosz Piechowicz, Mateusz Sudol, Przemyslaw Grodzicki, Magdalena Podbielska, Ewa Szpyrka, Aneta Zwolak, Leszek Potocki
Summary: The study found that honey bees more effectively activate detoxification mechanisms during foraging to resist harmful substances from the environment. Different timings of pesticide exposure resulted in varied effects on the expression of cytochrome P450 genes, with degradation rates significantly decreasing after 48 hours of intoxication.
ENVIRONMENTAL RESEARCH
(2021)
Article
Entomology
Kai Dang, Stephen L. Doggett, Chow-Yang Lee
Summary: This study evaluated the residual performance of two pyrethroid-neonicotinoid mixture formulations on glass and filter paper against eight pyrethroid-resistant strains of tropical bed bugs from Malaysia and Australia. The results showed varying levels of performance for Temprid SC against different strains, while Tandem displayed high performance against all strains. Additionally, the residues of Temprid SC and Tandem showed faster mortality on glass compared to filter paper, and the efficacy of Temprid SC residues declined after one week of aging.
JOURNAL OF ECONOMIC ENTOMOLOGY
(2023)
Article
Agronomy
Tomas Duque, Sumaiya Chowdhury, Marco Isaia, Stano Pekar, Kai Riess, Gregor Scherf, Ralf B. Schaefer, Martin H. Entling
Summary: This study highlights the high sensitivity of spiders to lambda-cyhalothrin, which can have unintended negative effects on pest suppression. Sensitivity is strongly related to phylogeny and climate, with spiders from boreal and polar climates being more sensitive. The observed differences in sensitivity between spider families and genera suggest that the functional composition of spider communities would change in areas affected by pesticide pollution. The variation in spider sensitivity emphasizes the need for multispecies investigations in pesticide risk assessment.
PEST MANAGEMENT SCIENCE
(2023)
Article
Toxicology
Manna Sera Jacob, Ramya Iyyadurai, Arun Jose, Jude Joseph Fleming, Grace Rebekah, Anand Zachariah, Samuel George Hansdak, Reginald Alex, Vignesh Kumar Chandiraseharan, Audrin Lenin, John Victor Peter
Summary: This study aimed to compare the clinical profile and outcome of patients with type 1 and type 2 pyrethroid poisoning. The results showed that patients mainly presented with mild to moderate symptoms, with type 2 poisoning being more associated with paraesthesia and hypersalivation. Overall, a favorable outcome can be expected in patients with pyrethroid poisoning.
CLINICAL TOXICOLOGY
(2022)
Article
Biology
Nawal M. Al Malahi, Masaa M. Al Jumaily, Elham A. S. Al-shaibani, Reem A. Alajmi, Afrah F. Alkhuriji, Jameel Al-Tamimi, Ahmad R. Alhimaidi
Summary: The research examined the effects of the pesticide LCT on the liver, kidney, testis, and ovary of albino mice, as well as on the morphology and skeletal features of newborns from treated females. The study found that LCT had harmful effects on mouse tissues and caused neonatal malformations, while LC had a protective effect against LCT.
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
(2022)
Article
Engineering, Environmental
Xiaobo Zheng, Xiaodan Wu, Ruifeng Lu, Xingpei Cao, Bi-Xian Mai
Summary: Enrichment of chiral polychlorinated biphenyls (PCBs) can trace their movement through food webs and this study investigated their concentrations and enantiomer fractions (EFs) in different species. The results highlighted the influences of prey uptake and biotransformation on the trophic dynamics of chiral PCBs.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Medicine, General & Internal
Prabhat Silwal, Rojeena Adhikari, Binay Yadav, Sanjan K. Sah, Ajay Bhatt, Samjhana Basnet
Summary: This case report highlights the challenges in managing pesticide poisoning when the nature of the pesticide is unknown. A 40-year-old female ingested lambda-cyhalothrin with suicidal intent and exhibited symptoms resembling organophosphorus poisoning. However, further evaluation revealed nonorganophosphorus compound poisoning. The case emphasizes the importance of comprehensive clinical evaluation and distinguishing between different types of poisoning in guiding appropriate management decisions.
ANNALS OF MEDICINE AND SURGERY
(2023)
Article
Environmental Sciences
Haiping Li, Fanping Meng, Aifeng Li
Summary: In this study, acute toxicity data of xylenes and propylbenzenes for aquatic species were collected to calculate hazardous concentrations. The results showed that xylenes and propylbenzenes pose high risks to groundwater but low risks to natural seawater, river water, and lake water.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Medicine, General & Internal
Vikram B. Vikhe, Ahsan A. Faruqi, Avani Reddy, Devansh Khandol, Tejas A. Kore
Summary: Insecticide poisoning remains one of the major methods of suicide in rural India. We present a case of a 38-year-old male who came to us after ingesting thiamethoxam and lambda-cyhalothrin while intoxicated with alcohol. The timely response and intensive care provided by our center gave him a second chance to make better choices.
CUREUS JOURNAL OF MEDICAL SCIENCE
(2023)
Article
Environmental Sciences
Chao Shen, Xinglu Pan, Xiaohu Wu, Jun Xu, Fengshou Dong, Yongquan Zheng
Summary: The study showed that difenoconazole poses potential ecological risks in aquatic environments, especially causing adverse effects on aquatic organisms in different countries. Therefore, it is recommended to restrict and rationalize the use of difenoconazole to reduce its harm to aquatic ecosystems.
Article
Medicine, Legal
Alagarasan Naveen, Manas Ranjan Sahu, Manoj K. Mohanty, Rashmi Ranjan Mohanty, Madhusmita Sethy, Bakialakshmi Velayutham
Summary: Agricultural poisons, specifically insecticides and pesticides, are the most common causes of morbidity and mortality in acute poisonings. Suicidal ingestion is more common than accidental or homicidal poisonings. Pyrethroids, including lambda-cyhalothrin (LCH), are considered relatively safer than other insecticides. However, fatalities from LCH exposure have not been reported in the literature. We present a case of LCH poisoning in a 54-year-old male farmer who accidentally ingested the chemical after a pipe burst while spraying in the field. The patient died 10 days later due to severe neurotoxicity resulting in bilateral parieto-occipital and brainstem infarcts. The histopathological features of LCH poisoning in the brain are discussed in this report.
AMERICAN JOURNAL OF FORENSIC MEDICINE AND PATHOLOGY
(2023)
Article
Environmental Sciences
Eudriano F. S. Costa, Joao Encarnacao, Maria Alexandra Teodosio, Pedro Morais
Summary: Climate change is reshaping species distribution globally, and in marine ecosystems, this creates challenges in an environment impacted by various anthropogenic stressors. Forecasting changes in species distribution, including the expansion of non-indigenous species under climate change, is a management challenge.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Agronomy
Eve Daum, Meike Brandes, Udo Heimbach, Christoph Zimmer, Russell Slater, Jan Elias
Summary: This study investigated the susceptibility to pyrethroids and the presence of the kdr mutation in four species of Ceutorhynchus weevils. The study found that all species tested had the kdr mutation, either in its heterozygous or homozygous form. The frequency of the kdr mutation varied among species and geographic locations, and there was a high risk of loss of effectiveness of pyrethroid insecticides. Resistance management strategies need to integrate other control tools.
PEST MANAGEMENT SCIENCE
(2023)
