Apogonia rauca explained

Apogonia rauca is a species of dung beetle found in India and Sri Lanka.[1]

Description

This large beetle is stoutly built with an average length between 7 and 8 mm. Body shining dark brown.[2]

It is a major pest of Arachis hypogaea.[3] Grubs fed on the nodules, rootlets and immature pods whereas adults damage leaves. Heavy infestations cause stunted plants. Both grub and pupal stages lasted for 60-75 and 7-10 days, respectively. They attack the plants throughout the peanut season from July to October.[4] Grubs and adults can be eradicated by using monocrotophos and chlorpyrifos.[5] [6]

Apart from groundnut, they are found extensively on rose flowers. Small numbers appeared in April and infestations continued until the mid August with a break during June. Adults are also known to feed on guava leaves.

Notes and References

  1. Web site: Melolonthinae of Sri Lanka (Coleoptera, Scarabaeoidea: Melolonthidae) with notes on the systematic position of some taxa . 2021-07-10 . ResearchGate.
  2. Web site: Population dynamics of white grubs (Coleoptera: Scarabaeidae) in the rose environment of Northern Bangalore, India . 2021-07-10 . Indian Journal of Science and Technology: Vol.2 No 1 (Jan. 2009).
  3. Web site: Management of white grub, Apogonia rauca (Feb.) in groundnut . 2021-07-10 . Annals of Plant …, 2010.
  4. Web site: White grub species attacking groundnut in the Saurashtra Region in Gujarat, India. . 2021-07-10 . International Arachis Newsletter 2006 No.26 pp.28-29 ref.2.
  5. Web site: Management of White grub, Apogonia rauca (Feb.) in Groundnut . 2021-07-10 . Annals of Plant Protection Sciences (India).
  6. Web site: WHITE GRUBS AND THEIR MANAGEMENT IN GROUNDNUT . 2021-07-10 . krishi.icar.gov.in.

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