Fitness costs of resistance to insecticides in insects

Frontiers in Physiology, Journal Year: 2023, Volume and Issue: 14

Published: Oct. 19, 2023

The chemical application is considered one of the most crucial methods for controlling insect pests, especially in intensive farming practices. Owing to application, pests are exposed toxic insecticides along with other stress factors environment. Insects require energy and resources survival adaptation cope these conditions. Also, insects use behavioral, physiological, genetic mechanisms combat stressors, like new environments, which may include chemicals insecticides. Sometimes, continuous selection pressure metabolically costly, leads resistance development through constitutive upregulation detoxification genes and/or target-site mutations. These actions costly can potentially affect biological traits, including reproduction parameters key variables that ultimately overall fitness insects. This review synthesizes published in-depth information on costs induced by insecticide past decade. It thereby highlights resistant populations might help design integrated pest management (IPM) programs spread populations.

Language: Английский

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Direct and indirect plant defenses induced by (Z)-3-hexenol in tomato against whitefly attack

Journal of Pest Science, Journal Year: 2020, Volume and Issue: 93(4), P. 1243 - 1254

Published: May 14, 2020

Language: Английский

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New slow release mixture of (E)‐β‐farnesene with methyl salicylate to enhance aphid biocontrol efficacy in wheat ecosystem

Pest Management Science, Journal Year: 2021, Volume and Issue: 77(7), P. 3341 - 3348

Published: March 27, 2021

Abstract Semiochemical use is a promising way to reduce damage from pests by improving natural control in agro‐ecosystems. The aphid alarm pheromone ( E )‐β‐farnesene (EβF) and herbivore‐induced methyl salicylate (MeSA) are two volatile cues induce changes behavior with functional significance. Because of limitations related the volatility oxidization EβF MeSA under conditions, slow‐release antioxidant techniques should be developed optimized before application. Here, alginate bead mixed was first designed manufactured. We hypothesized that mixture these semiochemicals could effective controlling Sitobion miscanthi wheat crops. Both beads were released stably continuously for at least 15 days laboratory, whereas paraffin oil pure only 2 7 days, respectively. In 2018 field experiments, alone or association significantly decreased abundance alate apterous aphids. An increased mummified aphids enhanced higher parasitism rates observed when using association, significant reduction abundance, more so than alone. 2019, plots treated showed compared control. new containing most efficient formulation S. population attracting parasitoids agro‐ecosystem. © 2021 Society Chemical Industry.

Language: Английский

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Side effects of chlorantraniliprole, phosalone and spinosad on the egg parasitoid, Trichogramma brassicae

Ecotoxicology, Journal Year: 2020, Volume and Issue: 29(7), P. 1052 - 1061

Published: May 24, 2020

Language: Английский

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Lethal and sublethal effects of synthetic and bio-insecticides on Trichogramma brassicae parasitizing Tuta absoluta

PLoS ONE, Journal Year: 2021, Volume and Issue: 16(7), P. e0243334 - e0243334

Published: July 30, 2021

The tomato leaf miner (TLM), Tuta absoluta (Meyrick), is an invasive pest found worldwide. Sustainable control strategies aimed at increasing biological approaches and decreasing chemical inputs are required, due to the tendency develop insecticide resistance. In this study, lethal sublethal effects of four insecticides (abamectin, indoxacarb, chlorantraniliprole, spinosad) entomopathogenic fungus Metarhizium anisopliae (Metschnikoff) on a widespread TLM egg parasitoid, Trichogramma brassicae Bezdenko, were estimated. Concentration mortality response bioassays enabled estimation concentrations tested for parasitoids, with chlorantraniliprole having lowest LC50 indoxacarb highest. LC25 sprayed eggs then offered three time intervals parasitoids. fertility other life table parameters individuals emerging from treated All insecticides, but not fungus, had harmful T. brassicae. applications caused 3.84-5.17 times reduction in net reproductive rate (R0) compared control. No affected by spraying 0h treatment, recorded 24 and/or 48h, except gross reproduction (GRR). value intrinsic increase (rm) also decreased 0.528-0.617 after treatments. doubling (DT) increased all treatments Nevertheless, generation (T) was only very slightly affected. addition, combination experiments, M. showed remarkable synergism controlling eggs. These results indicate that low levels key agents should be considered choice included sustainable packages.

Language: Английский

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Bibliographic and Research Gap Analysis on Herbivore Induced Plant Volatiles in Pest Management - A Case Study

Entomological News, Journal Year: 2025, Volume and Issue: 132(1)

Published: Jan. 10, 2025

The Herbivore Induced Plant Volatiles (HIPVs) are low molecular weight compounds and mostly belong to terpenoids, phenylpropanoids/benzenoids, Green Leaf (GLVs) amino acid derivatives. Volatile phytochemicals function as airborne indirect defense communication signals that specifically attract natural enemies. This case study discusses in detail metrics of publication on pest management the last two decades listed Web Science collection. Out a total 207 research publications, India other countries contributed eight 199 publications respectively, with percentage 3.86 96.13. Globally, impact factor (JIF) ranged from 0.22 (Journal Kansas Entomological Society) 10.151 (New Phytologist). Similarly for Indian range was 0.208 4.223. citation all papers published this topic totaled 4,302 excluding self-citation. average h-index 35 per year 245.16. If progress through these years is monitored, it explicit picked up during decade around 87 percent made were 2010 2021. researchers should focus more HIPV synthetic production application which enhances its uses IPM.

Language: Английский

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Finding an egg in a haystack: variation in chemical cue use by egg parasitoids of herbivorous insects

Current Opinion in Insect Science, Journal Year: 2022, Volume and Issue: 55, P. 101002 - 101002

Published: Dec. 16, 2022

Egg parasitoids of herbivorous insects use an interplay short- and long-range chemical cues emitted by hosts host plants to find eggs parasitize. Volatile compounds that attract egg can be identified via behavioral assays used manipulate parasitoid behavior in the field for biological control pests. However, how when a particular cue will varies over life individual, as well at below species level. Future research should expand taxonomic coverage explore variation more natural, dynamic settings. More nuanced understanding variability host-finding strategies aid disentangling underlying genetics further enhancing control.

Language: Английский

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Tritrophic Interactions Mediated by Zoophytophagous Predator-Induced Host Plant Volatiles

Journal of Chemical Ecology, Journal Year: 2024, Volume and Issue: 50(11), P. 663 - 678

Published: May 9, 2024

Abstract The zoophytophagous mirid predator Nesidiocoris tenuis and the ectoparasitoid Stenomesius japonicus are important biological control agents for several agricultural pests including invasive leafminer, Phthorimaea absoluta , a destructive pest of Solanaceous crops especially tomato in sub-Saharan Africa. However, little is known about how feeding by N. can influence tritrophic interactions plant. Here, we tested hypothesis that phytophagy would olfactory between host plant pest, predator, parasitoid. In olfactometer assays, P. females adults were both attracted to constitutive volatiles released Whereas avoided -infested plants, S. induced volatiles. coupled gas chromatography-electroantennographic detection (GC-EAD) recordings intact volatiles, antennae detected eight components, whereas seven components which identified GC-mass spectrometry (GC-MS) as terpenes green leaf (GLVs). Dose-response bioassays revealed responses varied with composition concentration blends individual compounds from N -induced Females showed no preference an eight-component blend formulated repellents hexanal, ( Z )-3-hexenyl butanoate, δ-elemene On other hand, attractants E )-2-hexenal, )-3-hexenol, methyl salicylate, β-phellandrene, )-caryophyllene. Likewise, seven-component δ-elemene, )-caryophyllene Our findings suggest there potential use GLVs manage insects interaction.

Language: Английский

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Oviposition-Induced Volatiles Affect Electrophysiological and Behavioral Responses of Egg Parasitoids

Insects, Journal Year: 2019, Volume and Issue: 10(12), P. 437 - 437

Published: Dec. 5, 2019

In response to an attack by herbivores, plants emit a variety of compounds that may act as semiochemicals. Oviposition-induced volatiles (OIPVs) have been shown mediate interactions between and natural enemies. Here, we investigated the role OIPVs Tuta absoluta towards two egg parasitoids, Trichogramma cordubense T. achaeae. We collected headspace from tomato at 24, 48, 72 h after oviposition females tested antennographic parasitoids them means gas chromatography- electro-antennographical detection (GC-EAD). The was also in behavioral experiments using Y-tube olfactometer. Oviposition induced qualitative quantitative changes emitted plants. Antennae responded several GC-EAD. were attracted with eggs 24 oviposition. elucidation behavior enhances development sustainable management strategies either selecting species exploit or manipulating their foraging utilizing specific are used host location.

Language: Английский

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Functional response of an egg parasitoid,Trichogramma chilonisIshii to sublethal imidacloprid exposure

Pest Management Science, Journal Year: 2023, Volume and Issue: 79(10), P. 3656 - 3665

Published: May 13, 2023

The effectiveness of a biological control agent depends on how well it can pests and compatible is with pesticides. Therefore, we reported the multigenerational effect commonly used insecticide, imidacloprid, functional response widely acclaimed egg parasitoid, Trichogramma chilonis Ishii, to different densities host Corcyra cephalonica Stainton eggs. study investigated outcomes median lethal concentration (LC50 ) sublethal concentrations (LC5 , LC30 ), along treatments for five continuous generations (F1 F5 ).The results showed that generation both F1 LC50 all had Type II response. A I was exhibited LC5 . attack rate eggs treated did not change (decrease) shift in type as compared control. significant increase searching efficiency (a) observed later (F5 under exposure imidacloprid concentrations. lower handling time (Th followed by individuals when treatments. per capita parasitization (1/Th (a/Th were also considerably higher than thereby implying positive effects potential T. chilonis.Altogether, these could be leveraged intractable lepidopteran mild integrated pest management (IPM) programs mass rearing chilonis. © 2023 Society Chemical Industry.

Language: Английский

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