Status of Insecticide Resistance in<i>Spodoptera litura</i>in Andhra Pradesh, India

Armes, N.J.; Wightman, J. A.; Jadhav, D R; Rao, G. V.

doi:10.1002/(sici)1096-9063(199707)50:3<240::aid-ps579>3.0.co;2-9

Cited by 160 publications

(81 citation statements)

References 5 publications

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“…Control of the pest is becoming increasingly difficult due to its resistance to many conventional synthetic insecticides in many areas (Mu et al, 1984;Han et al, 1987;Armes et al, 1997;Li et al, 1999). With the imposed quality restrictions on fresh market vegetables, management of Lepidopteran pests on cabbage has been based on either a low threshold (one larva per three plants) or on scheduled weekly sprays (Cartwright et al, 1987).…”

Section: Introductionmentioning

confidence: 99%

Toxicity and Efficacy of Chlorantraniliprole on Pieris rapae (Linnaeus) (Lepidoptera: Pieridae) on Cabbage

Su¹,

Hong²,

Cheng³

et al. 2017

JAS

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Toxicity of chlorantraniliprole was assayed against young (first and second instars) and older larvae (third and fourth instars) of cabbage Pieris rapae (Lepidoptera: Pieridae) on cabbage (Brassicae oleracea), and persistence of field-aged leaf residue of chlorantraniliprole was assayed with 5-old-day larvae of P. rapae on cabbage. Efficacies of chlorantraniliprole and other newer insecticides to P. rapae were tested under field conditions for two seasons in Hubei province in China. The LC 50 value of chlorantraniliprole for early and later P. rapae larvae were 7.92 and 11.34 mg/L by contact toxicity, respectively. The LC 50 value of chlorantraniliprole for early and later P. rapae larvae were 0.95 and 4.32 mg/L through ingestion, respectively. The toxicity of field-aged leaf residues of chlorantraniliprole (0-, 3-, 5-, 7-, 10-, 14-, 21-, 25-, and 28-day-old residues) declined gradually under the field conditions. Almost all larvae died on day 5 after feeding on the leaves with 0-21-day residue, and the mortalities were as high as 83.3% and 72.5% for the 21-and 25-day-old leaf residues. Chlorantraniliprole application suppressed P. rapae larvae below the economic threshold for 21-28 days. The field efficacy trials show that chlorantraniliprole at 52 mg a.i /L rate was effective against P. rapae larvae on cabbage, providing marketable cabbage with three applications per season. In addition, chlorantraniliprole was as effective as indoxacarb and spinosad and significantly more effective than emamectin benzoate.

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Section: Introductionmentioning

confidence: 99%

Toxicity and Efficacy of Chlorantraniliprole on Pieris rapae (Linnaeus) (Lepidoptera: Pieridae) on Cabbage

Su¹,

Hong²,

Cheng³

et al. 2017

JAS

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“…In India, it has attained a major pest status on agricultural crops such as cotton, groundnut and cauliflower. Failure to control S. litura in the major cotton and groundnut growing regions of Andhra Pradesh and Tamil Nadu states of India has resulted in an unexpected population outbreak and development of resistance to several insecticides (Armes et al 1997 ;Johny and Muralirangan, 2000). In order to avoid resistance problems, as well as to address environmental concerns regarding chemical pesticide use, it is important to identify and develop suitable alternate control strategies.…”

Section: Introductionmentioning

confidence: 99%

Morphological and molecular characterization of a new microsporidian (Protozoa: Microsporidia) isolated fromSpodoptera litura(Fabricius) (Lepidoptera: Noctuidae)

et al. 2006

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A microsporidium was isolated from larvae of Spodoptera litura (Fabricius) collected from Tamil Nadu, India. This microsporidian species is monomorphic, disporous and develops in direct contact with the cytoplasm of the host cell. The nuclear configuration of merogonic and sporogonic stages was diplokaryotic. The merogonic proliferative stage was unusual that normal development with 1, 2 and 4 binucleated forms were common, while large multinucleate meronts containing 8 and 12 small compact horseshoe-like diplokaryotic nuclei were also observed. The fresh spores were typically ovocylindrical in shape, with a mean size of 3 . 91r1 . 91 mm and the polar filament length was y90 mm. Infection was systemic with mature spores produced in the midgut, nervous tissue, muscles, labial glands, gonads, tracheae, epidermis, Malpighian tubules and, most extensively, fat body tissues. The new isolate was highly pathogenic to S. litura larvae. Host specificity tests performed on 37 non-target hosts of 5 different insect orders revealed that the new isolate is pathogenic only to lepidopteran insects. We sequenced the 16S small subunit rRNA (SSU rRNA) gene of the isolate and compared it with 72 non-redundant microsporidian sequences from the GenBank. Based on the light microscopic studies and phylogenetic analyses, the new isolate is assigned to the genus Nosema. Significant differences in the SSU rRNA sequence were identified when compared with the type species Nosema bombycis and other closely related species viz., Nosema spodopterae. Structural differences were also observed in the 16S SSU rRNA between the new isolate and the two above-mentioned microsporidian pathogens. We conclude that the microsporidian isolate reported here is distinctly different from the other known species and is likely to be a new species.

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“…Beauveria bassiana, the most common and ubiquitous fungal entomopathogen is known to be highly potent for the control of insects belonging to various orders. Among these B. bassiana (Balsamo) Vuillemin (Ascomycota: Hyphocreales) is a facultative pathogen with wide host range (Armes et al, 1997). This fungus has potential to control over 70 insect pests belonging to different orders particularly lepidopteron pests (Kaur et al, 2011).…”

Section: Issn: 2319-7706 Volume 6 Number 8 (2017) Pp 1992-1996mentioning

confidence: 99%

Efficacy of Beuveria bassiana on Different Larval Instars of Tobacco Caterpillar (Spodoptera litura Fab.)

Simon¹

2017

Int.J.Curr.Microbiol.App.Sci

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Status of Insecticide Resistance inSpodoptera liturain Andhra Pradesh, India

Cited by 160 publications

References 5 publications

Toxicity and Efficacy of Chlorantraniliprole on Pieris rapae (Linnaeus) (Lepidoptera: Pieridae) on Cabbage

Toxicity and Efficacy of Chlorantraniliprole on Pieris rapae (Linnaeus) (Lepidoptera: Pieridae) on Cabbage

Morphological and molecular characterization of a new microsporidian (Protozoa: Microsporidia) isolated fromSpodoptera litura(Fabricius) (Lepidoptera: Noctuidae)

Efficacy of Beuveria bassiana on Different Larval Instars of Tobacco Caterpillar (Spodoptera litura Fab.)

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