On the Biology of <i>Leucania loreyi</i> Dup. (Lepidoptera, Noctuidae)

El-Sherif, S. I.

doi:10.1111/j.1439-0418.1972.tb01725.x

Cited by 9 publications

(8 citation statements)

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“…The Mythimna loreyi (Duponchel) (often called the cosmopolitan) is a noctuid pest of grain crops found in Africa, Australia, the Near East, and the Middle East and undergoes multiple generations per year (Aloysius 2012). A variety of plants, including rice, wheat, barley, broom corn, maize, and sugarcane, are attacked by M. loreyi, but female moths express a definite oviposition preference for maize in Egypt (El-Sherif 1972). In Japan, M. loreyi has not been reported as a major pest of graminaceous crops, but it frequently occurs with a closely related species, Mythimna separata (Walker), which has profound negative effects on crop production (Hirai 1975).…”

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confidence: 99%

Population Projection and Development of the Mythimna loreyi (Lepidoptera: Noctuidae) as Affected by Temperature: Application of an Age-Stage, Two-Sex Life Table

Qin

Zhang

Liu

et al. 2017

Journal of Economic Entomology

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The Mythimna (=Leucania) loreyi (Duponchel) has recently emerged as a major pest of grain crops in China. Little is known about its basic biology and ecology, making it difficult to predict its population dynamics. An age-stage, two-sex life table was constructed for this insect when reared on maize in the laboratory at five constant temperatures (18, 21, 24, 27, and 30 °C). Both the intrinsic rate of increase (r) and finite rate increase (λ) increased as temperature significantly increased and mean generation time (T) decreased significantly with increasing temperature. The highest values for net reproductive rate (R0) and fecundity were observed at 24 °C. However, M. loreyi was able to develop, survive, and lay eggs at all temperatures tested (18-30 °C). Development rates at different temperatures for the egg, larval, pupal, as well as for a total preoviposition period, fit a linear equation. The lower threshold temperatures of egg, larval, pupal, preoviposition, and total preoviposition period were 8.83, 10.95, 11.67, 9.30, and 9.65 °C, respectively. And their effective accumulated temperatures were 87.64, 298.51, 208.33, 66.47, and 729.93 degree-days, respectively. This study provides insight into the temperature-based phenology and population ecology in M. loreyi. The results will benefit population dynamics monitoring, prediction, and management of this insect pest in the field.

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confidence: 99%

Population Projection and Development of the Mythimna loreyi (Lepidoptera: Noctuidae) as Affected by Temperature: Application of an Age-Stage, Two-Sex Life Table

Qin

Zhang

Liu

et al. 2017

Journal of Economic Entomology

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“…Leucania loreyi predominantly lay eggs in masses of 2-127 eggs but may lay singly at the last part of the oviposition time [68]. Eggs are laid on the leaf-sheath of the plants of Graminae.…”

Section: Biologymentioning

confidence: 99%

Insect Pest Complex of Wheat Crop

Qayyum¹,

Saeed²,

Naeem-Ullah³

et al. 2022

Current Trends in Wheat Research

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Wheat Triticum aestivum L. is grown on broad range of climatic conditions because of edible grains, cereal crop and stable food of about 2 Billion peoples worldwide. Additionally, it is the rich source of carbohydrates (55–60%), vegetable proteins and contributed 50–60% daily dietary requirement in Pakistan. Globally, wheat crops is grown over 90% area of total cultivated area; facing devastating biotic and abiotic factors. The estimated economic losses in wheat quantity and quality are about 4 thousands per tonne per year including physical crop losses and handling. Economic losses of about 80–90 million USD in Pakistan are recorded due to inadequate production and handling losses. Wheat agro-ecosystem of the world colonizes many herbivore insects which are abundant and causing significant losses. The feeding style of the insects made them dispersive from one habitat to another imposing significant crop loss. Areas of maximum wheat production are encountered with either insect which chew the vegetative as well as reproductive part or stem and root feeders. This chapter provides the pest’s taxonomic rank, distribution across the globe, biology and damage of chewing and sucking insect pest of wheat. It is very important to study biology of the pest in accordance with crop cycle to forecast which insect stage is economically important, what the proper time to manage pest is and what type of control is necessary to manage crop pest. The chapter will provide management strategies well suited to pest stage and environment.

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“…loreyi feeds on various host plants include rice, wheat, maize, sugarcane, barley, sorghum, and others, which have a large effect on female fecundity. The fecundity of female moths is greatest when the larvae feed on maize in Egypt (El-Sherif, 1972). Since M. loreyi is facilitated to breed, some researchers focus on the identification of products secreted by the adult corpora allata (Ho et al 1995).…”

Section: Intoductionmentioning

confidence: 99%

Development of a species diagnostic molecular tool for an invasive pest,Mythimna loreyiusing LAMP

Nam

Kwon

Kim

et al. 2020

Preprint

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The Mythimna loreyi (Duponchel) is one of the well-known a noctuid pest in Africa, Australia, and many Asian countries. This species has recently emerged as an invasive pest of some cereal crops in Korea. However, it is extremely difficult to identify the morphologically similar species, Mythimna separate, which occur at the cornfield in the larvae stage. Therefore, it is hard to accurately investigate invasive pests. In this study, the LAMP assay was developed for rapid, simple, effective species identification. By analyzing the mt genome, the species-specific sequence was found at the coding region of the NADH dehydrogenase subunit 5 gene. Based on this unique sequence, four LAMP primers and two loop primers were designed. The F3 and B3 primers were able to diagnose species-specific in general and multiplex PCR, and specifically reacted within the inner primers in LAMP assay. The optimal incubation condition of the LAMP assay was 61 □ for 60 minutes with four LAMP primers, though additional loop primer, BF and LF, did not significantly shorten the amplification time. The broad range of DNA concentration was workable in LAMP assay, in which the minimum detectable DNA concentration was 100 pg. Here, DNA releasing method was applied which took five minutes of incubation at 95 □ without the DNA extraction process, and only some pieces of tissue from larvae and adult samples were needed. The incidence of invasive pests is gradually diversifying, therefore, this simple and accurate LAMP assay possibly applied in the intensive field monitoring for the invasive pests and integrated management of Mythimna loreyi.

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On the Biology of Leucania loreyi Dup. (Lepidoptera, Noctuidae)

Cited by 9 publications

References 0 publications

Population Projection and Development of the Mythimna loreyi (Lepidoptera: Noctuidae) as Affected by Temperature: Application of an Age-Stage, Two-Sex Life Table

Population Projection and Development of the Mythimna loreyi (Lepidoptera: Noctuidae) as Affected by Temperature: Application of an Age-Stage, Two-Sex Life Table

Insect Pest Complex of Wheat Crop

Development of a species diagnostic molecular tool for an invasive pest,Mythimna loreyiusing LAMP

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