Sesamia grisescens
Female, dorsal view
Male, dorsal view
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Noctuidae
Genus: Sesamia
Species:
S. grisescens
Binomial name
Sesamia grisescens
Warren, 1911

Sesamia grisescens, the pink sugarcane borer, pink stalk borer, shoot borer, sugarcane borer or ramu shoot borer, is a moth of the family Noctuidae. The species was first described by Warren in 1911.[1] It is found in Papua New Guinea, Seram, the Moluccas and New Britain.[2]

Female, ventral view
Male, ventral view

The larvae are a pest on Saccharum officinarum, although they also feed on other plants, including Saccharum robustum, Saccharum spontaneum, Saccharum edule, Pennisetum purpureum and Panicum maximum. First instar larvae mine the inner surface of the leaf sheath before boring into the terminal internodes of the stalk. The gregarious early instars feed on the internode tissue. Later, the larvae migrate to the upper three or four internodes of adjacent undamaged stalks where large tunnels are mined. Several days prior to pupation, the larvae cut large exit holes through the stalk rind and retreat into the tunnel to pupate. There are a total of seven larval instars.[3]

References

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  1. ↑ Savela, Markku, ed. (May 30, 2020). "Sesamia grisescens Warren, 1911". Lepidoptera and Some Other Life Forms. Retrieved October 25, 2020.
  2. ↑ PaDIL
  3. ↑ Young, G. R. (1992). "Life History and Biology of Sesamia grisescens Walker (Lepidoptera: Noctuidae), a Sugarcane Borer in Papua New Guinea". Australian Journal of Entomology. 31 (3): 199–203. doi:10.1111/j.1440-6055.1992.tb00483.x.


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