Population Dynamics of Omiodes indicata (Fabricius) (Lepidoptera: Pyralidae) on Soybean in Brazil

Favetti, Bruna Magda; Catoia, Bruna; Gericó, Thais Grassi; Bueno, Regiane C. O. F.

doi:10.5539/jas.v10n1p245

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…Gangwar and Thakur in 1991 [4] suggested the economic threshold as 8-9 leaf-folds per plant. Favetti et al (2018) [3] from Brazil also suggested that this insect remains throughout the crop in soybean and highest during reproductive phase.…”

Section: Discussionmentioning

confidence: 95%

Exploring pest status and successive population growth of Omiodes indicata (Fabricius) in early maturing black gram

Faiz

2023

J. Entomol. Zool. Stud.

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This investigation was aimed to understand the nature of damage and population growth of the insect pest Omiodes indicata (Fabricius) in black gram crop in random block design having three replications. Any food crop's yield is influenced by pest incidence in addition to soil properties. In multiple investigations, the polyphagous Omiodes indicata (Fabricius) (Lepidoptera: Pyralidae) was identified as a potential pest to various crops. During 2016 and 2017, early-maturing black gram (Vigna mungo L.) was grown in fallow rice fields in Hajo revenue circle (26.3303 0 N, 91.5148 0 E) in the Kamrup District of Assam. Larvae of Omiodes indicata were counted visually at the experimentation site. This species was discovered in all three plots of the experimental agricultural area. It fed on the green parts of the leaves reducing the chlorophyll content. During the vegetative stage, the population level indicated an increase in its size. Omiodes indicata (larva) was first discovered in the 36 th standard week with a mean population of 0.8/plant and reached its peak in the 39 th standard week with a population of 1.53/plant in 2016. With a mean population of 0.2/plant, the first appearance in 2017 happened during the 37 th standard week. In the same year this pest reached its peak during the 40 th standard week, with a mean population of 1.46 per plant. These findings are significant for both the crop and the local farmers, necessitating managerial attention in order to achieve the projected level of yield.

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Section: Discussionmentioning

confidence: 95%

Exploring pest status and successive population growth of Omiodes indicata (Fabricius) in early maturing black gram

Faiz

2023

J. Entomol. Zool. Stud.

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DNA barcodes reveal deeply neglected diversity and numerous invasions of micromoths in Madagascar

Lopez‐Vaamonde

Sire

Rasmussen

et al. 2019

Genome

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Madagascar is a prime evolutionary hotspot globally, but its unique biodiversity is under threat, essentially from anthropogenic disturbance. There is a race against time to describe and protect the Madagascan endangered biota. Here we present a first molecular characterization of the micromoth fauna of Madagascar. We collected 1572 micromoths mainly using light traps in both natural and anthropogenically disturbed habitats in 24 localities across eastern and northwest Madagascar. We also collected 1384 specimens using a Malaise trap in a primary rain forest at Andasibe, eastern Madagascar. In total, we DNA barcoded 2956 specimens belonging to 1537 Barcode Index Numbers (BINs), 88.4% of which are new to BOLD. Only 1.7% of new BINs were assigned to species. Of 47 different families found, Dryadaulidae, Bucculatricidae, Bedelliidae, Batrachedridae, and Blastobasidae are newly reported for Madagascar and the recently recognized Tonzidae is confirmed. For test faunas of Canada and Australia, 98.9%-99.4% of Macroheterocera BINs exhibited the molecular synapomorphy of a phenylalanine in the 177th complete DNA barcode codon. Non-macroheteroceran BINs could thus be sifted out efficiently in the Malaise sample. The Madagascar micromoth fauna shows highest affinity with the Afrotropics (146 BINs also occur in the African continent). We found 22 recognised pests or invasive species, mostly occurring in disturbed habitats. Malaise trap samples show high temporal turnover and alpha diversity with as many as 507 BINs collected; of these, astonishingly, 499 (98.4%) were novel to BOLD and 292 (57.6%) were singletons. Our results provide a baseline for future surveys across the island.

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Population Dynamics of Omiodes indicata (Fabricius) (Lepidoptera: Pyralidae) on Soybean in Brazil

Cited by 2 publications

References 2 publications

Exploring pest status and successive population growth of Omiodes indicata (Fabricius) in early maturing black gram

Exploring pest status and successive population growth of Omiodes indicata (Fabricius) in early maturing black gram

DNA barcodes reveal deeply neglected diversity and numerous invasions of micromoths in Madagascar

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