Myllocerus viridanus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Infraorder: Cucujiformia
Family: Curculionidae
Genus: Myllocerus
Species:
M. viridanus
Binomial name
Myllocerus viridanus
Fabricius, 1775
Synonyms
  • Curculio viridanus Fabricius, 1775
  • Myllocerus viridanus Boheman, 1834
  • Myllocerus angustifrons Faust, 1897

Myllocerus viridanus, often known as sweet potato beetle,[1] pod borer[2] or ash weevil,[3] is a species of weevil native to India and Sri Lanka.[4][5]

Description

This species has a body length is about 3 to 4.5 mm. Body black, with dense uniform light green scales. Sometimes color varying to pale greenish white with chalky-white efflorescence. Head with yellow and with metallic green scales at the apex of the rostrum. Head narrowed from back to front. Eyes dorsal. Forehead with a rounded impression. Rostrum evidently longer than the head. Mandibles reddish brown. Antennae black or piceous. Prothorax subconical. Elytral striae are very narrow and covered with fine longitudinal punctures. Legs black, with green scales.[6]

Biology

Adult weevils have been observed in numerous plants as they are known to defoliate the tender leaves and shoots extensively.[7] Grubs feed on roots resulting in wilting of plants. Hence considered as serious polyphagous pest of economic importance.[8][9]

Adults can be destroyed by using Beauveria bassiana, an entomopathogenic fungus.[10]

Host plants

References

  1. ↑ "Pherobase Invasive :: Species Detail - Myllocerus viridanus". www.pherobase.com. Retrieved 2021-08-18.
  2. ↑ "Insect Pest Information". cib.res.in. Retrieved 2021-08-18.
  3. ↑ Sharma, S. P.; Kishore, Ram; Gupta, Rakesh; Sinhadeo, S. N.; Sinha, B. R. R. P. (2003-10-01). "Evaluation of Azadirachtin Against Immature Stages of Myllocerus viridanus Fab. (Coleoptera: Curculionidae), a Pest of Primary Tasar Food Plants". Indian Forester. pp. 1217–1221. Retrieved 2021-08-18.
  4. ↑ "Myllocerus viridanus". www.cabi.org. Retrieved 2021-08-18.
  5. ↑ "Myllocerus - an overview: ScienceDirect Topics". www.sciencedirect.com. Retrieved 2021-08-18.
  6. ↑ "THE FAUNA OF BRITISH INDIA, INCLUDING CEYLON AND BURMA: COLEOPTERA. RHYNCHOPHORA :-CURCULIONIDaE" (PDF). faunaofindia. Retrieved 2021-08-15.
  7. ↑ "TNAU Agritech Portal :: Crop Protection". agritech.tnau.ac.in. Retrieved 2021-08-18.
  8. ↑ "New Record of Host Plants of Myllocerus viridanus Fabricius (Coleoptera: Curculionidae), a major polyphagous pest from Kerala, India". Journal of Entomological Research 43(2):189-192. Retrieved 2021-08-18.
  9. ↑ "Dna barcoding and evolutionary lineage of grey weevil, myllocerus viridanus (fabricius) (coleoptera: curculionidae) | International Journal of Recent Scientific Research". recentscientific.com. Retrieved 2021-08-18.
  10. ↑ "Beauveria bassiana (Bals.) Vuill., a possible biocontrol agent against Myllocerus viridanus Fabr. and Calopepla leayana Latreille in south India". www.cabdirect.org. Retrieved 2021-08-18.
  11. ↑ S. Pachaiyappan; S. Durairaj (2018-05-02). "NUTRITIONAL INDICES AS AN INDEX TO ASSESS THE FEEDING POTENTIALS OF FOREST INSECT PESTS, DEREODUS DENTICOLLIS AND MYLLOCERUS VIRIDANUS". International Journal of Current Research and Modern Education: 514–518. doi:10.5281/zenodo.1239810. Retrieved 2021-08-18.
  12. ↑ Ahmad, Mukhtar (1989-11-01). "Feeding Diversity of Myllocerus viridanus Fab. (Coleoptera: Curculionidae) from South India". Indian Forester. pp. 832–838. Retrieved 2021-08-18.
  13. ↑ "SEASONAL ABUNDANCE OF WEEVILS MYLLOCERUS SPP. ON MULBERRY IN KOLHAPUR REGION" (PDF). International Journal of Science, Environment ISSN 2278-3687 (O) and Technology, Vol. 3, No 1, 2014, 203 – 207. Retrieved 2021-08-18.
  14. ↑ "BRINJAL ::MAJOR PESTS::ASH WEEVILS". eagri.org. Retrieved 2021-08-18.
  15. ↑ "ENTO 331 :: Lecture 03 :: Pests of Sorghum". eagri.org. Retrieved 2021-08-18.
  16. ↑ "Pod Borer". projectnoah. Retrieved 2021-08-18.
  17. ↑ Ahmad, M (1989). "Feeding diversity of Myllocerus viridanus Fab. (Coleoptera: Curculionidae) from South India". Indian Forester 115(11): 832-838. Retrieved 2021-08-18.
  18. ↑ P.k, Mishra; R.n, Singh; J, Jayswal; K, Thangavelu (1995). "First report of Myllocerus viridanus Fabricius (Coleoptera: Curculionidae) as a pest of Terminalia arjuna Bedd. and Terminalia tomentosa W. and A." Sericologia. Retrieved 2021-08-18.
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