Chronic sublethal exposure to chlorantraniliprole inhibits growth and development by disrupting the sugar and fatty acid metabolism in Spodoptera frugiperda

Pesticide Biochemistry and Physiology, Год журнала: 2025, Номер 208, С. 106302 - 106302

Опубликована: Янв. 13, 2025

Язык: Английский

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Characterization of the physiological, histopathological, and gene expression alterations in Spodoptera frugiperda larval midguts affected by toosendanin exposure

Pesticide Biochemistry and Physiology, Год журнала: 2023, Номер 195, С. 105537 - 105537

Опубликована: Июль 15, 2023

Язык: Английский

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Association of a Global Invasive Pest Spodoptera frugiperda (Lepidoptera: Noctuidae) with Local Parasitoids: Prospects for a New Approach in Selecting Biological Control Agents

Insects, Год журнала: 2024, Номер 15(3), С. 205 - 205

Опубликована: Март 19, 2024

Spodopotera frugiperda is a worldwide invasive pest that has caused significant economic damage. According to the classical biological control approach, natural enemies can pests come from same area of origin as have experienced coadaptation processes. However, new association’s approach suggests local are equally capable controlling pests. Due lack data on association S. and enemies, research was conducted through rapid survey study diversity parasitoids associated with frugiperda. The results showed 15 parasitoid species Four egg parasitoids, eight larval three larval–pupal were found be for years after it first discovered in Indonesia. Eleven them reports A between twelve species, consisting (Platygasteridaesp.01, Platygasteridaesp.02, Telenomus remus), six (Apanteles sp., Microplitis Campoletis Coccygidium Eupelmus Stenobracon sp.), (Brachymeria lasus, B. femorata, Charops sp.). remus most dominant parasitoid, higher abundance parasitism rate. result another method selecting using since foster quick adaptation

Язык: Английский

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Salvia connivens Methanolic Extract Against Spodoptera frugiperda and Tenebrio molitor and Its Effect on Poecilia reticulata and Danio rerio

Toxics, Год журнала: 2025, Номер 13(2), С. 94 - 94

Опубликована: Янв. 26, 2025

Spodoptera frugiperda (Lepidoptera: Noctuidae) and Tenebrio molitor (Coleoptera: Tenebrionidae) are two prominent pests of maize its stored grains, respectively. Botanical pesticides have been proposed as an alternative for their management. This study evaluated the insecticidal activity Salvia connivens (Lamiaceae) methanolic extract rosmarinic acid against S. T. by adding them to artificial diet, well ecotoxicological effects on Poecilia reticulata (Cyprinodontiformes: Poeciliidae) Danio rerio (Cypriniformes: Danionidae) through acute toxicity tests. The showed higher mortality (LC50 = 874.28 ppm) than 1856.94 was non-toxic fish. Rosmarinic acid, most abundant compound in (80.45 mg g-1), 176.81 ppm). did not cause a toxic effect adult P. at tested concentrations. However, fingerlings D. adults, it non-toxic, except embryos, where slightly toxic. These findings suggest that has potential botanical product management with low impact, while may be useful frugiperda.

Язык: Английский

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Association of a Global Invasive Pest <em>Spodoptera frugiperda</em> (Lepidoptera: Noctuidae) with the Local Parasitoids: Prospects for a New Approach in Biological Control

Опубликована: Янв. 30, 2024

Spodopotera frugiperda is a worldwide invasive pest that has caused major economic damage. According to classical biological control theory, natural enemies can pests come from the area of origin as have gone through coadaptation processes. However, new association&rsquo;s approach suggests local are equally capable pests. Due lack data on association S. and enemies, research was conducted rapid survey study population density in Yogyakarta, Indonesia diversity parasitoid associated with frugiperda. The results showed difference parasitism rate, 15 species Four egg parasitoids, eight larval three pupal parasitoids were found be for years after it first discovered Indonesia. A between species, consisting two (Platygasteridaesp.01 Platygasteridaesp.02) (Eupelmidaesp.01). relatively (Coccygidium sp. Stenobracon sp.), an existing seven including Telenomus remus, (Cotesia sp., Microplitis Campoletis (Brachymeria lasus, B. femorata, Charops sp.). remus most dominant parasitoid, higher abundance rate. This also reported findings Megaselia scalaris result another method using since foster quick adaptation

Язык: Английский

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Impact of camptothecin exposures on the development and larval midgut metabolomic profiles of Spodoptera frugiperda

Pesticide Biochemistry and Physiology, Год журнала: 2024, Номер 205, С. 106136 - 106136

Опубликована: Сен. 19, 2024

Язык: Английский

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Identification of entomopathogenic nematodes in Hainan Province, China and their efficacy against Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae)

Crop Protection, Год журнала: 2024, Номер 184, С. 106838 - 106838

Опубликована: Окт. 1, 2024

Язык: Английский

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A Vip3Af mutant confers high resistance to broad lepidopteran insect pests

Pest Management Science, Год журнала: 2024, Номер unknown

Опубликована: Сен. 19, 2024

Abstract BACKGROUND Vegetative insecticidal proteins (Vip3) from Bacillus thuringiensis (Bt) have been utilized for control of lepidopteran insect pests. The majority known Vip3 possess exceptional high toxicity against Noctuid insects such as the fall armyworm (FAW, Spodoptera frugiperda ), beet (BAW, exigua ) and cotton bollworm (CBW, Helicoverpa armigera but generally relatively low or even no activity some very important pest insects, Asian corn borer (ACB, Ostrinia furnacalis European (ECB, nubilalis rice stem (RSB, Chilo suppressalis oriental (OAW, Mythimna separata ). RESULTS Here, we report mutant Vip3Af with a single amino acid mutation, Vip3Af‐T686R, which gains significantly higher ACB, OAW BAW, while retaining FAW, CBW RSB. Protein proteolytic activation in vitro showed that efficiency protein was greater than wild‐type midgut juice BAW. Transgenic expressing this levels resistance to OAW, BAW CBW. CONCLUSION Our results suggest may be superior Vip3A development transgenic crops broad range species. © 2024 Society Chemical Industry.

Язык: Английский

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Competitive interactions between invasive fall armyworm and Asian corn borer at intraspecific and interspecific level on the same feeding guild

Insect Science, Год журнала: 2023, Номер 31(4), С. 1313 - 1325

Опубликована: Дек. 6, 2023

Abstract Interspecific competition is an important factor in the population dynamics and geographical distribution of insect populations. Fall armyworm (FAW), Spodoptera frugiperda , invasive species, Asian corn borer (ACB), Ostrinia furnacalis a native pest species are major pests on maize China, posing threat to yield grain quality. A series laboratory, greenhouse, field experiments were conducted elucidate competitive interactions between FAW ACB. In laboratory experiments, exhibited aggressive behaviors more frequently when compared with ACB, while latter defense frequently. Higher intraspecific was recorded conspecific rather than particularly 6th larval stage. had higher interspecific advantage through intraguild predation over resulting partial or complete displacement ACB initially ratio 2 1 : 1. The also significantly influenced parameters, defensive enzymes, nutrient these species. Competitive interaction proved that response superoxide, catalase, soluble protein increased, whereas total sugar content both substantially decreased. Survival rate, plant damage co‐infested by varied among sequential combinations under greenhouse conditions. consistently stronger aggression conditions co‐existing same feeding guild. These findings contribute efforts toward improvement integrated management programs for FAW, decision making pests’ strategies reduce high risks outbreaks.

Язык: Английский

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Invasion of fall armyworm led to the succession of maize pests in Southwest China

Journal of Integrative Agriculture, Год журнала: 2023, Номер 23(4), С. 1300 - 1314

Опубликована: Сен. 20, 2023

The invasive fall armyworm Spodoptera frugiperda (J. E. Smith) invaded Asia in 2018, colonizing the tropical and southern subtropical regions as well migrating with monsoons into Northeast during spring summer. This has resulted widespread infestations, significant impacts on maize production various Asian countries. Previous studies have shown that invasion of this pest can alter species relationships pests, but actual impact management is still unclear. study investigated changes occurrence pesticide use annual breeding areas S. Yunnan Province Guangxi Zhuang Autonomous Region China 2017-2021, based surveys interviews small farmers production. results showed emerged dominant among pests after colonization, replacing traditional such Ostrinia furnacalis, litura, Agrotis ypsilon, Rhopalosiphum maidis. variety pesticides used for control changed from Chlorpyrifos, Lambda-cyhalothrin, Acetamiprid to Emamectin benzoate-based high effectiveness against frugiperda. Furthermore, frequency chemical applications increased an average 5.88 7.21 times per season, amounts summer autumn being significantly higher than winter maize, thereby increasing application costs by more 35%. clarified community succession south China, providing a baseline modifying regional strategies relatively new pest.

Язык: Английский

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