Khapra Beetle

Khapra beetle (Trogoderma granarium) is a devastating pest of stored products in parts of the Middle East, Asia, Africa and the Mediterranean. Originating from India, this pest is NOT in Australia, but some native Trogoderma species do look quite similar. Market access would be greatly restricted if this pest became established here.

Khapra beetle are very resilient pests. They can survive and reproduce rapidly, even under difficult conditions. They also have the ability to survive without a food source for extended periods.

Adult beetles in the Trogoderma family are small, oval-shaped, reddish-brown and quite hairy (Figure 1).  The adults are fairly short lived, so the larvae are most likely to be what is seen.

Image credit: Pest and Diseases Image Library, Bugwood.org

Larvae:

• appear very hairy, forming distinctive tufts over the body and giving the appearance of a short tail
• range in size from 1.6 to 5 millimetres long
• are initially pale yellow and become golden-brown when they grow.

It is difficult to separate Khapra beetle from the native Trogoderma species, so sending a sample in for identification will usually be required.

It is always good practice to be in the habit of regularly checking silos for pests. If you find anything unusual contact the Exotic Plant Pest Hotline 1800 084 881 for details on how to submit a sample.

For help with identification of a pest please feel free to contact your local LLS Ag Advisor.