Male Scent Brush of Peridroma saucia: Chemistry of Secretion

Physalis peruviana L. is currently the second fruit crop more exported of Colombia; however, the pests associated with the culture have been little studied which is important considering that some Noctuidae can cause a decrease of 20% in its production. In this research, the Noctuidae species related to P. peruviana were studied in three farms of La Unión, Antioquia, Colombia. Twelve sampling units, with 30- and 45-day transplanted plants, were distributed throughout the farms and sampled biweekly from March 1st to August 29th of 2014. In the plant canopy and the planted area, immature stages were registered, and statistic models were built in order to describe their trend. The taxonomic identification of adults was made by comparing with the Noctuidae collection of Museo Entomológico Francisco Luis Gallego at Universidad Nacional de Colombia – Sede Medellín, and by using taxonomic keys. Nine Noctuidae species were found in total. Six models were built, four oviposition models for Agrotis ipsilon and Spodoptera spp., Copitarsia decolora and Heliothis subﬂexa, Megalographa biloba, and Peridroma saucia; a model for larvae and pupae stages was built. The oviposition model for P. saucia was the more adjusted, with a Root mean squared predictive difference (RMSPD) of 0.84. The other studied models were suitable to describe the trend of the immature stages; except for M. biloba model. This research revealed the ecological characteristics of the Noctuidae species associated with the golden berry crop that affect its productivity.

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A multiplex PCR method for identification of two common true cutworm species (Lepidoptera: Noctuidae) tested in the central plain of Guilan province, Iran

Zootaxa ◽

10.11646/zootaxa.4420.2.6 ◽

2018 ◽

Vol 4420 (2) ◽

pp. 243

Author(s):

REZA HOSSEINI ◽

KHADIJEH MADAHI

Keyword(s):

Dna Barcode ◽

Morphological Characteristics ◽

Coi Gene ◽

Molecular Diagnostic ◽

Pest Species ◽

Immature Stages ◽

Nucleotide Polymorphisms ◽

Peridroma Saucia ◽

Lepidoptera Noctuidae ◽

Guilan Province

Many species of cutworms (Lepidoptera: Noctuidae) are important agricultural pest. They feed on roots and foliage of their host plants. Traditionally these species are identified based on morphological characteristics of adults. Hence identification of specimens in poor condition, immature stages and also closely related species or cryptic species is a difficult task. The basics of biological and ecological studies largely rely on an accurate species identification; consequently these investigations are impacted by potential misidentifications. In this study, we amplified 5' region of mitochondrial c cytochrome oxidase subunit I (COI) gene (DNA barcode region) of various common true cutworm species including Agrotis ipsilon (Hufnagel, 1766), Agrotis exclamationis (Linnaeus, 1758), Peridroma saucia (Hübner, 1808) and Xestia c-nigrum (Linnaeus, 1758) from agricultural fields of Guilan province (North of Iran). We were able to detect 66 conservative Single Nucleotide Polymorphisms (SNPs) among the targeted pest species and eventually design specific primers and develop a multiplex polymerase chain reaction assay as a molecular diagnostic tool for immature stages of two the most common and abundant species including A. ipsilon and X. c-nigrum in Guilan province.

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Variegated Cutworm, Peridroma saucia (Hübner) (Lepidoptera: Noctuidae)

Encyclopedia of Entomology ◽

10.1007/978-1-4020-6359-6_3936 ◽

2008 ◽

pp. 4038-4041

Author(s):

John B. Heppner ◽

John L. Capinera ◽

Jamie Ellis ◽

Andrey N. Alekseev ◽

...

Keyword(s):

Peridroma Saucia ◽

Variegated Cutworm ◽

Lepidoptera Noctuidae

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Male Scent Emitted by Armyworms, Pseudaletia unipuncta and P. separata (Lepidoptera : Noctuidae)

Applied Entomology and Zoology ◽

10.1303/aez.15.310 ◽

1980 ◽

Vol 15 (3) ◽

pp. 310-315 ◽

Cited By ~ 14

Author(s):

Kazuo HIRAI

Keyword(s):

Pseudaletia Unipuncta ◽

Male Scent ◽

Lepidoptera Noctuidae

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Male scent stimulates female goats’ fertility

Nature ◽

10.1038/nature.2014.14788 ◽

2014 ◽

Author(s):

Brian Owens

Keyword(s):

Male Scent

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CUTWORMS (LEPIDOPTERA: NOCTUIDAE) OF TOBACCO IN NOVA SCOTIA: II. FALL RYE AND WINTER FALLOW EFFECTS ON A FIELD POPULATION

The Canadian Entomologist ◽

10.4039/ent10673-1 ◽

1974 ◽

Vol 106 (1) ◽

pp. 73-77

Author(s):

H. B. Specht

Keyword(s):

Nova Scotia ◽

Winter Rye ◽

Tobacco Plants ◽

Peridroma Saucia ◽

Cultural Methods ◽

Variegated Cutworm ◽

Euxoa Messoria ◽

Field Plots ◽

Lepidoptera Noctuidae ◽

Winter Fallow

AbstractTwice as many larvae of the dark-sided cutworm, Euxoa messoria Harr., were found in rye fall-seeded tobacco field plots than in winter-fallowed tobacco field plots. There were corresponding differences in numbers of injured tobacco plants. Cutworm aggregations were more prominent in the winter rye than in the winter fallowed area of the tobacco field with low populations of dark-sided cutworms.Larvae of the variegated cutworm, Peridroma saucia Hbn., appeared 2 to 4 weeks later than dark-sided cutworm larvae and winter cultural methods had little effect on their numbers.

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Female behaviour plays a critical role in controlling murine pregnancy block

Proceedings of The Royal Society B Biological Sciences ◽

10.1098/rspb.2008.1780 ◽

2009 ◽

Vol 276 (1662) ◽

pp. 1723-1729 ◽

Cited By ~ 12

Author(s):

Stuart D Becker ◽

Jane L Hurst

Keyword(s):

Critical Period ◽

Critical Role ◽

Reproductive Investment ◽

Dominant Male ◽

Critical Periods ◽

Nest Sites ◽

Bruce Effect ◽

Male Scent ◽

Female Behaviour ◽

Mated Female

Exposure of recently mated female rodents to unfamiliar male scents during daily prolactin surges results in pregnancy failure (the ‘Bruce effect’). Control of nasal contact with male scents during these narrow windows of sensitivity could allow females to maintain or terminate pregnancy, but female behavioural changes specifically during this critical period have not been investigated. We examined the approach or avoidance of familiar stud strain and unfamiliar male scents by recently mated female mice. Females that maintained pregnancy avoided both unfamiliar and familiar male scent during critical periods of susceptibility for the Bruce effect. By contrast, females that did not maintain pregnancy showed a sharp rise in the time spent with unfamiliar male scent during this critical period. Manipulation of the social status of unfamiliar and stud strain scent donors did not affect the likelihood of pregnancy block, although females spent more time with dominant male scents across all time periods. The ability to control the Bruce effect through behaviour during brief sensitivity just before dusk, when females are likely to be in nest sites, provides a mechanism by which females may adjust their reproductive investment according to nest site social stability and likelihood of offspring survival.

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