Resurgence of the cotton bollworm <i>Helicoverpa armigera</i> in northern Greece associated with insecticide resistance

Mironidis, George K.; Kapantaidaki, Despina; Bentila, Maria; Morou, Evangelia; Savopoulou-Soultani, Μ.; Vontas, John

doi:10.1111/j.1744-7917.2012.01528.x

Cited by 59 publications

(27 citation statements)

References 18 publications

(24 reference statements)

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“…However, extensive and widespread use of pyrethroids has led to pest resistance as a consequence, which impedes pest control efforts [12]. Knock down resistance (kdr) mutation on target genes and elevated activity of detoxification enzymes are two crucial mechanisms to confer high resistance to pyrethroids [13,14,15,16].…”

Section: Introductionmentioning

confidence: 99%

Involvement of Three Esterase Genes from Panonychus citri (McGregor) in Fenpropathrin Resistance

Shen

Liao

et al. 2016

IJMS

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The citrus red mite, Panonychus citri (McGregor), is a major citrus pest with a worldwide distribution and an extensive record of pesticide resistance. However, the underlying molecular mechanism associated with fenpropathrin resistance in this species have not yet been reported. In this study, synergist triphenyl phosphate (TPP) dramatically increased the toxicity of fenpropathrin, suggesting involvement of carboxylesterases (CarEs) in the metabolic detoxification of this insecticide. The subsequent spatiotemporal expression pattern analysis of PcE1, PcE7 and PcE9 showed that three CarEs genes were all over-expressed after insecticide exposure and higher transcripts levels were observed in different field resistant strains of P. citri. Heterologous expression combined with 3-(4,5-dimethyl-thiazol-2-yl)-2,5-diphenyltetra-zolium bromide (MTT) cytotoxicity assay in Spodoptera frugiperda (Sf9) cells revealed that PcE1-, PcE7- or PcE9-expressing cells showed significantly higher cytoprotective capability than parental Sf9 cells against fenpropathrin, demonstrating that PcEs probably detoxify fenpropathrin. Moreover, gene silencing through the method of leaf-mediated dsRNA feeding followed by insecticide bioassay increased the mortalities of fenpropathrin-treated mites by 31% (PcE1), 27% (PcE7) and 22% (PcE9), respectively, after individual PcE gene dsRNA treatment. In conclusion, this study provides evidence that PcE1, PcE7 and PcE9 are functional genes mediated in fenpropathrin resistance in P. citri and enrich molecular understanding of CarEs during the resistance development of the mite.

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Section: Introductionmentioning

confidence: 99%

Involvement of Three Esterase Genes from Panonychus citri (McGregor) in Fenpropathrin Resistance

Shen

Liao

et al. 2016

IJMS

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“…In the Larissa Plain of northern Greece, H. armigera is the major insect pest of cotton (Mironidis et al, 2010(Mironidis et al, , 2012. It is also a serious pest of tomato and maize, but not in all areas or every year.…”

Section: Observed Impact Of Helicoverpa Armigera In the Eumentioning

confidence: 99%

Scientific Opinion on the pest categorisation ofHelicoverpa armigera(Hübner)

Rossi¹

2014

EFSA Journal

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The Panel on Plant Health undertook a pest categorisation of Helicoverpa armigera for the European Union territory. The taxonomy of H. armigera and related species worldwide is complex but, in Europe, only H. armigera is present. Although it has been recorded in all Member States, it persists throughout the year only in the southernmost parts of Europe where winters are not too cold. From these areas and from North Africa, longdistance northward migrations of up to 1 000 km can occur. In most of Europe, only transient populations are found outdoors. Nevertheless, damage to outdoor crops has been recorded as far north as the Netherlands. H. armigera also damages crops produced under protected conditions, with outbreaks related to the import of plants for planting. It is highly polyphagous, with over 180 host species recorded from more than 45 families, and it is particularly hard to detect and difficult to control because the larvae bore into reproductive structures with few visible external symptoms. Damage is especially severe in hot summers. Insecticide resistance is common and a wide range of insecticides may be applied. It is listed in Annex IIAII, and special requirements for H. armigera are formulated in Annexes IVAI and IVAII of Council Directive 2000/29/EC to regulate the movement of plants for planting of Solanaceae and three ornamental genera.

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“…Among lepidopteran corn pests, Helicoverpa armigera is one of the most important economic pests globally (Fitt 1989;Liu et al 2004Liu et al , 2009. Larvae feed on flowers and fruits, causing substantial damage (McGahan et al 1991), and are highly resistant to various insecticides (Mironidis et al 2013;Yang et al 2013;Bird 2015;Qayyum et al 2015;Xu et al 2016;Downes et al 2017). Larvae feed on flowers and fruits, causing substantial damage (McGahan et al 1991), and are highly resistant to various insecticides (Mironidis et al 2013;Yang et al 2013;Bird 2015;Qayyum et al 2015;Xu et al 2016;Downes et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Monitoring of four major lepidopteran pests in Korean cornfields and management of Helicoverpa armigera

Kim

Kwon²,

Park³

et al. 2018

Entomological Research

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Lepidopterans such as Helicoverpa armigera are emerging pests of corn in Korea, causing huge yield losses and deteriorating the quality of the corn crop. We monitored four major lepidopteran pests in major corn growing areas of Korea by employing sex pheromone traps from 2012 to 2015 to understand population dynamics. H. armigera, Ostrinia furnacalis, Spodoptera litura, Spodoptera exigua and Mythimna separata were collected from April to October. Among these species, H. armigera was found to be the main pest based on crop damage intensity (80–90% of the total damage). H. armigera was generally observed during the earing stage of corn and would migrate to other fields during September to October for overwintering. We also tested select insecticides against larvae of H. armigera in the laboratory. The most effective insecticide was indoxacarb, which was applied at specific times to manage H. armigera in cornfields. Optimal timing of spraying was estimated at about 70 days after planting (earing season) to control for H. armigera. Additionally, two species of parasitoid (Therion circumflexum and Ophioninae sp.) were identified from H. armigera. However, more extensive surveys are needed to organize a control program based on natural enemies.

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Resurgence of the cotton bollworm Helicoverpa armigera in northern Greece associated with insecticide resistance

Cited by 59 publications

References 18 publications

Involvement of Three Esterase Genes from Panonychus citri (McGregor) in Fenpropathrin Resistance

Involvement of Three Esterase Genes from Panonychus citri (McGregor) in Fenpropathrin Resistance

Scientific Opinion on the pest categorisation ofHelicoverpa armigera(Hübner)

Monitoring of four major lepidopteran pests in Korean cornfields and management of Helicoverpa armigera

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