Scale insects

Is this a Minor Pest?: 
Minor Pest Title: 

Yam scale (Aspidiella hartii)

Minor Pest Description: 

Infestations of tubers and sometimes foliage cause poor growth. Stored tubers are particularly susceptible to attack and large numbers cause shrivelling.


Adult female scales are pinkish-brown, roughly oyster-shaped, conical, with a white patch at the tip of the cone. Younger scales are relatively more white. Crawlers are yellow.

Minor Pest What to do.: 
  • Inspect yams in storage regularly, and remove those that become infested with the scale.
  • Select tubers that are free of scale insects for planting.
    Minor Pest Position: 
    Minor Pest Firstcontent: 
    Host Plants: