Residual toxicity of pesticide active substance commonly used in tomato crop on the predator Nesidiocoris tenuis (Heteroptera: Miridae) DOI
Antonis Nikolakakis,

Dimitrios Bitsakis,

Zacharias Skarakis

et al.

Journal of Applied Entomology, Journal Year: 2024, Volume and Issue: unknown

Published: June 10, 2024

Abstract Nesidiocoris tenuis (Reuter) (Heteroptera Miridae) is a key biological control agent of the tomato leaf miner Tuta absoluta (Meyrick). However, in cases prey scarcity, this predator switches into phytophagous pest causing ring injuries stems plants. The aim study was to assess side effects dry residues and explore presence target site resistance mutations 10 insecticides, two bioinsecticides, an acaricide fungicide widely applied IPM, on adults N. collected from different regions Crete; Western Eastern island during successive years. Lethal toxicity trials were performed sprayed recorded 2 h, 7 14 days after exposure. At both populations, chlorpyrifos, acetamiprid thiamethoxam moderately harmful at application day slightly application. Only chlorpyrifos maintained its for more than days. All rest tested pesticides (emamectin benzoate, abamectin, chlorantraniliprole+abamectin, chlorantraniliprole, deltamethrin, tebufenpyrad, spinosad, Bacillus thuringiensis var kurstaki , metaflumizone myclobutanil) classified as harmless. Additionally, analysis insecticide sequences indicated absence populations. Overall, our findings illustrate impact 15 their residual mortality rates adults.

Language: Английский

Ecotoxicological risk assessment of combined insecticidal and thermal stresses on Trichogramma chilonis DOI
Muhammad Zubair Ahmad, Muhammad Kamran, Muhammad Abbas

et al.

Journal of Pest Science, Journal Year: 2023, Volume and Issue: 97(2), P. 921 - 931

Published: Aug. 22, 2023

Language: Английский

Citations

8
Characterization of the sublethal toxicity and transcriptome‐wide biological changes induced by λ‐cyhalothrin in Bombyx mori DOI
Yuying Ren, Yue Su, Wanwan Wang

et al.

Environmental Toxicology, Journal Year: 2023, Volume and Issue: 38(7), P. 1702 - 1711

Published: March 29, 2023

λ-Cyhalothrin (λ-cyh) is widely used in agricultural production and has been reported to cause damages numerous nontarget insects. As an important economic model insect of Lepidoptera, Bombyx mori was extremely sensitive λ-cyh, pesticide drift often leads silkworm poisoning. However, little known about the persistence sublethal effects or potential recovery from short-term exposure doses pesticides. In this study, we estimated caused by (24 h) λ-cyh LC1 , LC10 LC25 LC50 respectively, investigated persistent negative on growth, survival, pupal metamorphosis larvae. Silkworm growth mostly retarded after exposure, with dose-dependent observed at delayed time points. Relative control, treatment groups showed significantly higher larval mortalities abnormal pupa rates. Additionally, transcriptome sequencing conducted investigate normal physiological functions midgut B. mori. A total 2697 differentially expressed genes were identified, 57.1% DEGs down-regulated. Gene ontology Kyoto encyclopedia genomes enrichment analysis further revealed that energy nutrient metabolisms negatively affected. Moreover, demonstrated inhibited oxidative phosphorylation pathway reducing expression mitochondrial electron transport chain complex consequently synthesis ATP. This study provided useful transcriptome-wide resources facilitate overall knowledge molecular basis toxicity

Language: Английский

Citations

7
Compatibility of two novel insecticides dimpropyridaz and Beauveria bassiana PPRI 5339 with the beneficial insect Nesidiocoris tenuis (Reuter) DOI Creative Commons

Estefanía Rivera-Alonso,

José E. González-Zamora, C. Avilla

et al.

Crop Protection, Journal Year: 2024, Volume and Issue: 178, P. 106582 - 106582

Published: Jan. 3, 2024

Nesidiocoris tenuis is a zoophytophagous insect widely used commercially as biological control agent against different pests and crops under greenhouse conditions. For successful Integrated Pest Management (IPM) strategy, it crucial to know the compatibility of available new crop protection products with agents. The aim this study was evaluate classify lethal sublethal effects on N. tenuis, including novel insecticides dimpropyridaz Beauveria bassiana strain PPRI 5339, in accordance International Organisation for Biological Control (IOBC) directives. Dimpropyridaz, B. adjuvant fatty acid esters combination 5339 have been classified harmless (IOBC 1 < 25% mortality beneficial capacity). evaluation reproduction capacity increase (rc) showed no significant between previous compounds untreated control. Flupyradifurone, sulfoxaflor, dimethoate were harmful 4 > 75% these two (dimpropyridaz 5339) great importance because adds tools be IPM programmes which chemical strategies are together.

Language: Английский

Citations

2
Adverse impacts of development on the deltamethrin-exposed host Ephestia elutella (Lepidoptera: Pyralidae) on population parameters of Habrobracon hebetor (Hymenoptera: Braconidae) DOI

Xiuqin Wang,

Hou‐Ding Ou,

Hao‐Xi Li

et al.

Crop Protection, Journal Year: 2023, Volume and Issue: 167, P. 106211 - 106211

Published: Feb. 25, 2023

Language: Английский

Citations

6
Knockdown of the ecdysone receptor disrupts development and causes mortality in the melon fly, Zeugodacus cucurbitae DOI
Shakil Ahmad, Momana Jamil, Coline C. Jaworski

et al.

Insect Molecular Biology, Journal Year: 2023, Volume and Issue: 32(6), P. 738 - 747

Published: Aug. 30, 2023

Abstract Cucurbits are important economic plants that attacked by numerous pests, among which the melon fly Zeugodacus cucurbitae is extremely problematic. New sustainable pest control strategies necessary to replace chemical insecticides harmful environment, human health and nontarget species. The RNA interference (RNAi) technology one of most promising tools due high efficiency species specificity. We developed an RNAi strategy targeting ecdysone receptor ( ECR ) Z. , plays role in moulting reproduction. identified, described isolated gene measured its expression pattern across developmental stages tissues. ZcECR knockdown via ds ingestion caused a significant larval mortality abnormal phenotypes pupae adults. About 68% larvae fed with ‐treated diet failed enter pupal stage died. In addition, dramatically reduced weight (by 3.24 mg on average) fecundity about 23%). therefore method paving way for development novel highly specific strategies.

Language: Английский

Citations

6
Effects of azoxystrobin and difenoconazole on the development, fecundity, and predatory capacity of Cyrtorhinus lividipennis DOI

Kui Hu,

Shichang Cheng,

Ke Chen

et al.

Entomologia Experimentalis et Applicata, Journal Year: 2024, Volume and Issue: 172(10), P. 894 - 901

Published: June 10, 2024

Abstract The predatory bug Cyrtorhinus lividipennis Reuter (Hemiptera: Miridae) is an important biological control agent for planthoppers, such as Nilaparvata lugens (Stål) Delphacidae), and leafhoppers in rice fields ( Oryza sativa L., Poaceae). In this study, the sublethal effects of azoxystrobin difenoconazole, two fungicides extensively used production, on were investigated. results indicated that exposure to at third instar had no influence developmental duration, but difenoconazole resulted a 25.2% decrease lifespan adult males. When exposed newly emerged adults, caused 33.5% female longevity. pre‐oviposition period azoxystrobin‐treated females mating with males was shortened by 44.9%, compared control, whereas difenoconazole‐treated lengthened 32.2% group. However, effect fecundity egg hatchability. Furthermore, did not impact average consumption C. N. individuals. They stimulate response plants infested two‐choice H‐shaped olfactometer test. Also, capacity increased after decreased fungicides. Overall, our pose notable risk . These findings establish foundation rational coordinated utilization agents ecosystems.

Language: Английский

Citations

1
Impact of biopesticides on the probing and feeding behavior of Aphis gossypii DOI Creative Commons
Zeinab Hamouche,

Caterina Zippari,

Abderrahmane Boucherf

et al.

CABI Agriculture and Bioscience, Journal Year: 2024, Volume and Issue: 5(1)

Published: June 25, 2024

Abstract Background Pesticides-induced mortality has traditionally been the toxicological endpoint on which a chemical is selected for pest management strategies. However, exposure to pesticide might also cause behavioral alterations that can dramatically affect dynamics of pest-plant interaction. Understanding these non-lethal effects crucial developing comprehensive and sustainable control measures. Methods Here, using Electrical Penetration Graph (EPG) technique, we evaluated whether biopesticides routinely used in organic or conventional alter probing feeding behavior cotton aphid Aphis gossypii treated plants. The post persistence when moving insect onto clean plants was assessed. tested were chosen being aphicides because those crops hosts A. . Generalised linear mixed models fitted analyse aphids, untreated data as model baseline. Results Residuals Bacillus thuringiensis , Beauveria bassiana sulfur significantly affected stylets intercellular route compared (namely, shorter pathways, fewer brief intracellular probes, higher longer derailed events). Mineral oil, orange essential oil pyrethrin delayed impaired onset phloem sap ingestion. On other hand, copper potassium salts promoted feeding. Pyrethrin only inducing persistent alterations, with insects displaying frequency occurrence xylem ingestion events moved after exposure. Conclusions Overall, this study demonstrates modulate aphid-plant interactions by impairing facilitating exploitation host plant, affecting patterns conducive plant pathogens transmission. This highlights importance considering studies impact all compounds could be exposed within agroecosystem, including not designed specific pest.

Language: Английский

Citations

1
Assessment of non‐target toxicity of insecticides on Ganaspis brasiliensis (Ihering) in laboratory and field conditions DOI Creative Commons
Lorenzo Fellin, Giovanni Dal Zotto, Fabrizio Lisi

et al.

Pest Management Science, Journal Year: 2024, Volume and Issue: 80(10), P. 5421 - 5431

Published: July 12, 2024

Abstract Background G1 strain Ganaspis brasiliensis (Ihering) has been recently released in both Europe and America as a biological control agent of the spotted wing drosophila, Drosophila suzukii (Matsumura). In initial phases classical programs, it becomes imperative to evaluate susceptibility parasitoids insecticides, identify best alternatives adopt an integrated pest management organic perspective. this study, we evaluated lethal sublethal effects topical application five different insecticides classes: neonicotinoids, diamides, pyrethroids, organophosphates spinosyns. Additionally, tested residual toxicity field trials vineyards sweet cherry orchards. Results Adult wasps' insecticides' classes were consistent between laboratory field. Spinosad exhibited highest toxicity, with median concentration (LC 50 ) 0.00372 maximum dose, knock‐down effect trials, causing 92.5 ± 5% mortality at T 0 . λ‐cyhalothrin showed on male female insects' longevity when applied LC 30 deltamethrin persistence, significant parasitoid up 14 days after treatment. Conversely, cyantraniliprole was least toxic active ingredient according bioassays, even though its residues caused 7 treatment Conclusion Our results indicate that spinosad are highly G. , making them incompatible programs. Cyantraniliprole lower may be considered selective pesticide for D. suzukii. © 2024 The Author(s). Pest Management Science published by John Wiley & Sons Ltd behalf Society Chemical Industry.

Language: Английский

Citations

1
Poisoning due to Spinosad in honey bees: toxicological report DOI

Vincenzo Naccari,

Gaetano Trevisi,

Clara Naccari

et al.

Journal of Apicultural Research, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 8

Published: Nov. 25, 2024

Language: Английский

Citations

1
Genome Combination Improvement Strategy Promotes Efficient Spinosyn Biosynthesis in Saccharopolyspora spinosa DOI

Ziyuan Xia,

Jun Li, Xirong Liu

et al.

Journal of Agricultural and Food Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 27, 2024

Spinosyns are secondary metabolites produced by Saccharopolyspora spinosa known for their potent insecticidal properties and broad pesticidal spectrum. We report significant advancements in spinosyn biosynthesis achieved through a genome combination improvement strategy S. spinosa. By integrating modified shuffling with ultraviolet mutation multiomics analysis, we developed high-yield strain designated as YX2. The levels of most proteins linked to primary metabolism were greater this than those Based on these insights, overexpressed 15 relevant functional genes enhance the conversion fatty acids into acetyl-coenzyme A. Notably, overexpression acd (YX2_3432) significantly increased yield, reaching 1120 ± 108 mg/L, which is about 12 times higher that This study presents valuable straightforward can be broadly applied production actinomycetes.

Language: Английский

Citations

1