Cnaphalocrocis medinalis

TaxID: 437488

Basic Information

Cnaphalocrocis medinalis

Rice Leaf-roller, rice leaffolder

Cnaphalocrocis medinalis, the rice leafroller, is a species of moth of the family Crambidae. It is found in south-east Asia, including Hong Kong, Sri Lanka, Taiwan, Thailand and most of Australia. This moth typically has a wingspan of approximately 16 millimeters. Its larvae are recognized as pests of various crops, including Oryza sativa, Zea mays, and Triticum, Saccharum and Sorghum species. The adult moth is characterized by its vibrant yellow or straw coloration, with distinct wavy lines visible on its forewings and hindwings. Eggs are usually laid individually or in groups on the undersides of leaves, appearing scaly and white. A female moth can lay around 56 eggs, with an incubation period lasting between 4 and 8 days. Larvae go through 5 to 6 instars over a period of approximately 22 to 23 days before pupating within folded leaves for about 6 to 7 days. Fully grown caterpillars are green and measure around 16.5 millimeters in length. The entire life cycle of this moth spans about 5 weeks. Throughout its life stages, the rice leafroller can cause significant damage to crops. Newly hatched caterpillars initiate damage by cutting leaf edges and folding them. In the case of young seedlings, they may fold multiple adjacent leaves and consume the green tissue, leaving affected leaves with a whitish appearance. A single caterpillar can damage numerous leaves, leading to reduced plant vigor and eventual crop yield loss, which can range from 10% to 50%. This pest poses a more severe threat during the boot leaf stage of crop development.

from Wikipedia

Taxonomic Information

Metazoa

Arthropoda

Insecta

Lepidoptera

Crambidae

Cnaphalocrocis

medinalis

unclassified

Photos (5 photos)

Cnaphalocrocis medinalis
c
(c) Freya / Samsa@BY-SA
Cnaphalocrocis medinalis
c
(c) Masatoshi Sone@BY-NC
Cnaphalocrocis medinalis
c
(c) Vijay Anand Ismavel@BY-NC-SA
Cnaphalocrocis medinalis
c
(c) Freya / Samsa@BY-SA
Cnaphalocrocis medinalis
c
(c) Masatoshi Sone@BY-NC

Morphological Features

No morphological description available.

Host Plants (0 host plants)

Data sources: EPPO Global Database and relevant literature.

No host plants available.

Quarantine Status (2 records)

Data sources: IPPC website and national quarantine websites; verified by human review.

Country Status Year Added
Mozambique Quarantine pests —
United States of America Quarantine pests —

Distribution (26 countries)

Data Sources: EPPO Global Database and GBIF.

26
Present
0
Absent
0
Unknown/Other
Country Status State
Australia Present —
Bangladesh Present —
Bhutan Present —
Cambodia Present —
China Present —
Hong Kong, China Present —
Indonesia Present —
India Present —
Japan Present —
Republic of Korea Present —
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Distribution Map (Latitude and longitude coordinates sourced from GBIF.)

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Genomes (1 records)

Data source: NCBI.

Assembly Accession Assembly Level Genome Size(Mb) Contig N50(Kb) Scaffold N50(Kb) BUSCO% Downloads Actions
GCA_014851415.1 Chromosome 528 524 16091 -

Transcriptomes (3 records)

Data source: NCBI.

Run ID Tissue Developmental Stage Sex Read Count Location Actions
SRR31264212 larva - - 23561840 China
SRR31264211 larva - - - China
SRR31264210 larva - - 23642441 China

DNA Barcodes (0 records)

View all

Data source: BOLD.

No DNA barcode records available.

Literature