Synthetic and Natural Insecticides: Gas, Liquid, Gel and Solid Formulations for Stored-Product and Food-Industry Pest Control

Insects, Год журнала: 2021, Номер 12(7), С. 590 - 590

Опубликована: Июнь 29, 2021

The selective application of insecticides is one the cornerstones integrated pest management (IPM) and strategies for resistance to insecticides. present work provides a comprehensive overview traditional new methods gas, liquid, gel, solid physical insecticide formulations control stored-product food industry urban pests from taxa Acarina, Blattodea, Coleoptera, Diptera, Hymenoptera, Lepidoptera, Psocoptera, Zygentoma. Various definitions concepts historically currently used various pesticide are also described. This review demonstrates that technological advances have sparked renewed research interest in optimization conventional such as aerosols, sprays, fumigants, inert gases. Insect growth regulators/disruptors (IGRs/IGDs) increasingly employed baits, residual treatments, spray-residual protectants long-term stored-grain protection. Insecticide-impregnated hypoxic multilayer bags been proven be most promising low-cost safe hermetic grain storage developing countries. netting baits were originally developed urban/medical recognized an innovative technology protection stored commodities. New biodegradable acaricide gel coatings nets suggested ham meat. Tablets satchels represent approach botanicals. Many emerging technologies can found form impregnated protective packaging (insect (IGRs/IGDs), natural repellents), pheromone-based attracticides, electrostatic dust or nanoparticles, edible artificial sweeteners, hydrogels, with synthetic attractants, encapsulations active ingredients, cyanogenic coatings. Smart based on RNA-based gene silencing compounds incorporated into stand at forefront current strategic research. Inert gases (diatomaceous earth) positive examples alternatives products, which their integration other proposed implemented practice. Although many laboratory studies conducted biological activity botanical insecticides, published demonstrating effective industrial field usage stores production facilities scarce. shows problems associated some (e.g., sorption, stability, efficacy, smell) extent echo frequently encountered addressed almost 100 years ago during transition ancient modern classical chemical methods.

Язык: Английский

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High nutritional status promotes vitality of honey bees and mitigates negative effects of pesticides

The Science of The Total Environment, Год журнала: 2021, Номер 806, С. 151280 - 151280

Опубликована: Окт. 28, 2021

Honey bee health is affected by multiple stressors, such as the exposure to plant protection products (PPPs), dietary limitation, monofloral diets and pressure of diseases pathogens their interactions. Here, we analysed interacting effects low nutritional pollen source on honey under semi-field conditions. We established a healthy colony in each 24 tents, planted either with maize, maize diverse flower strip or Phacelia tanacetifolia. To evaluate interaction between PPPs status, mixture insecticide thiacloprid fungicide prochloraz was applied. For colony, investigated brood capping rate well adult longevity, body head weight, enzyme activity acetylcholinesterase P450 reductase newly hatched worker bees. found significant reduced treated compared flowering strips Phacelia, but no effect pesticide treatment status rate. The response longevity adults differed significantly being intermediate, indicating PPP quality treatments. Head weight bees showed PPPs. slightly increased all statuses, except for Phacelia. Enzyme different responses exposure, not strip. Our results support hypothesis that higher promotes development larvae pupae, detoxification

Язык: Английский

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The sweet taste inhibitor lactisole affects aphid feeding behavior and performance

Journal of Economic Entomology, Год журнала: 2025, Номер unknown

Опубликована: Янв. 17, 2025

Aphids and numerous other phloem-feeding insects primarily rely on sucrose in the phloem to locate their feeding sites. However, it is still unclear whether this sweet perception process could serve as a target for aphid control. In study, we investigated impact of taste inhibitor sodium salt 2-(4-methoxyphenoxy)-propionic acid (lactisole), widely used food additive that binds sugar receptors, behavior performance aphids. Our findings indicate both green peach Myzus persicae (Sulzer) (Hemiptera: Aphididae) English grain Sitobion avenae (Fabricius) avoided settling an artificial diet containing lactisole or host plants treated with lactisole. addition, these species showed reduced weights when seedlings root drenched by Furthermore, data from electrical penetration graph revealed S. exhibited greater number probes but significantly shorter mean total ingestion durations wheat root-drenched It worth noting, however, had significant inhibitory effect plant growth. These suggest may reduce preference growth, offering new avenue control strategies.

Язык: Английский

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The impact of sugar diet on humidity preference, survival, and host landing in mosquitoes

Journal of Medical Entomology, Год журнала: 2025, Номер unknown

Опубликована: Апрель 13, 2025

Mosquito-borne diseases have caused more than 1 million deaths each year. There is an urgent need to develop effective way reduce mosquito-host interaction mitigate disease transmission. Sugar diets long been linked abnormal physiology in animals, making them potential candidates for mosquito control. Here, we show the impact of sugar on humidity preference and survival Aedes aegypti (Gainesville) Culex pipiens (Buckeye). Two-choice assays with high low relative (80% 50% RH) that species-specific. In comparison Cx. pipiens, various resulted marked reductions avidity Ae. aegypti, which exhibited significant differences. Among diets, arabinose significantly reduced rate mosquitoes at concentrations. Moreover, found host landing was not impacted by feeding different types. Our study suggests specific treatments could be applied control dampening their reducing lifespan, thus mosquito-borne

Язык: Английский

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Non-nutritive sugar feeding alters the genetic profile of diuretic hormones and their receptors in Drosophila suzukii (Diptera: Drosophilidae)

Annals of the Entomological Society of America, Год журнала: 2025, Номер unknown

Опубликована: Май 8, 2025

Abstract Non-nutritive sugars such as erythritol and sucralose are active ingredients in artificial sweeteners. In the past decade, research has demonstrated insecticidal properties of non-nutritive across several arthropod species. It is now a prospective chemical control option for spotted-wing drosophila, Drosophila suzukii, one most economically important pests small fruits. D. suzukii die quicker, excrete waste large amounts, become desiccated when fed mixture sucralose. The toxicity to fly not clearly elucidated but likely due nutritional physiological failures associated with an excess fluid excretion water imbalance, caused hyperosmotic body. diuretic processes insects primarily regulated by 3 neuropeptides: CAPA hormone, hormone 31 (DH31), 44 (DH44). To explore genetic effects on we investigated regulation key genes—capa, dh31, dh44—and their 7 corresponding receptors under different dietary conditions: + sucrose, Molecular analyses revealed that expression levels capa, dh44, were significantly altered sugar-fed flies compared group only sucrose. Through trials testing synergistic peptide injection sugar consumption, DH44 consistently increased mortality all diet groups. These findings offer molecular insights development novel pest management strategies targeting suzukii.

Язык: Английский

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Re‐evaluation of erythritol (E 968) as a food additive

EFSA Journal, Год журнала: 2023, Номер 21(12)

Опубликована: Дек. 1, 2023

Abstract This opinion addresses the re-evaluation of erythritol (E 968) as food additive and an application for its exemption from laxative warning label requirement established under Regulation (EU) No 1169/2011. Erythritol is a polyol obtained by fermentation with Moniliella pollinis BC or megachiliensis KW3-6, followed purifications drying. readily dose-dependently absorbed in humans can be metabolised to erythronate small extent. then excreted unchanged urine. It does not raise concerns regarding genotoxicity. The dataset evaluated consisted human interventional studies. Panel considered that has potential cause diarrhoea humans, which was adverse because association electrolyte water imbalance. lower bound range no observed effect levels (NOAELs) 0.5 g/kg body weight (bw) identified reference point. appropriate set numerical acceptable daily intake (ADI) at level An ADI bw per day protective immediate well chronic effects, secondary diarrhoea. highest mean 95th percentile exposure children (742 mg/kg day) adolescents (1532 day). Acute maximally 3531 meal 99th percentile. Overall, both dietary assessments overestimation. concluded estimates acute were above ADI, indicating individuals high may risk experiencing effects after single repeated exposure. Concerning new application, available data do support proposal exemption.

Язык: Английский

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Effect of Erythritol and Sucralose Formulation on the Survivorship of the Mosquito Aedes aegypti

Florida Entomologist, Год журнала: 2023, Номер 106(2)

Опубликована: Июнь 22, 2023

Se demostró que el eritritol, un poliol de 4 carbonos no nutritivo, tiene propiedades insecticidas para múltiples plagas artrópodos. Las formulaciones eritritol combinadas con sacarosa, como fagoestimulante, mejoraron consumo y la eficacia insecticida sobre las plagas. Sin embargo, agregar sacarosa aporta recursos nutricionales carbohidratos en mismas plagas, puede conducir al desarrollo microbios campo crear residuo pegajoso plantas rociadas solución. En este estudio, probamos comparamos o sucralosa, e identificamos actividades adultos del mosquito Aedes aegypti. La formulación sucralosa es una solución menos pegajosa redujo significativamente sobrevivencia los mosquitos adultos, tener mérito método alternativo control justifica evaluación adicional.

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Laboratory evaluation of sugar alcohols for control of mosquitoes and other medically important flies

Scientific Reports, Год журнала: 2022, Номер 12(1)

Опубликована: Авг. 12, 2022

Insecticide application for vector control is the most controversial component of a public health program due to concerns about environmental and human safety. One approach overcome this challenge use environmentally benign active ingredients. Among promising emerging strategies are attractive toxic sugar baits. Sugar alcohols-naturally occurring molecules safe consumption but potentially insects when ingested, have received increased attention with approach. For study, we screened toxicity four different alcohols on several mosquito species, biting midge, filth fly. alcohol mortalities exceeded those in sucrose (positive control) only group. However, erythritol highly concentrated xylitol induced exceeding water (negative treatment ranging from approximately 40-75%. Formulations containing should be further investigated under field conditions efficacy reducing populations flies assessing potential non-target impacts.

Язык: Английский

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Diols and sugar substitutes in attractive toxic sugar baits targeting Aedes aegypti and Aedes albopictus (Diptera: Culicidae) mosquitoes

Journal of Medical Entomology, Год журнала: 2023, Номер 60(5), С. 1022 - 1029

Опубликована: Июнь 22, 2023

Abstract Around the world, mosquitoes continue to transmit disease-causing pathogens and develop resistance insecticides. We previously discovered that a generally regarded as safe (GRAS) compound, 1,2-propanediol, reduces adult mosquito survivorship when ingested. In this study, we assess compare 5 more chemically related compounds for lethality 8 GRAS sugar substitutes determine toxicity. conducted series of feeding assays if ingesting influenced mean in locally collected lab-reared populations Aedes aegypti (Diptera, Culicidae, Linnaeus, 1762) albopictus Skuse, 1894) mosquitoes. Our results indicate 1,3-propanediol, 1,5-pentanediol, 1,6-hexanediol, 2-methyl-1,3-propanediol, DL-dithiothreitol, acesulfame potassium, allulose, erythritol, sodium saccharin, stevia, sucralose significantly reduced one or both species. Short-term trials with most toxic revealed they could substantially affect after 24 h. also found there were different responses 2 species several experimental conditions, male expired greater extent than female These findings are Further study is required their effectiveness attractive baits (ATSBs) potential component population control strategies.

Язык: Английский

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Effects of nonnutritional sugars on lipid and carbohydrate content, physiological uptake, and excretion in Drosophila suzukii

Archives of Insect Biochemistry and Physiology, Год журнала: 2021, Номер 109(2)

Опубликована: Дек. 5, 2021

The nonnutritive sugar, erythritol, has the potential to be a human-safe management tool for small fruits and cherry pest, Drosophila suzukii, or spotted-wing drosophila. Feeding on erythritol decreases fly survival oviposition by starving creating an osmotic imbalance in body. Recently, we demonstrated that combined with another sucralose, was fed upon more than alone hastens D. suzukii mortality. This suggests sucralose is suitable phagostimulant alternative sucrose. Although promising, nutritional physiological impacts of are unknown. In this study, investigated whether metabolized excreted when various sucrose, formulations. We found cannot converted into any substitutes storage carbohydrates suzukii. Instead, molecules were largely accumulated hemolymph slowly from body, significant To excrete unused sugars, flies will use their own body fluids restore homeostasis, resulting losing substantial amount weight becoming desiccated process. summary, ingesting leads starvation hyperosmotic pressure causing decrease fitness. With confirmation being non-metabolizable phagostimulative erythritol+sucralose formulation promising insecticide growers use.

Язык: Английский

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