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Abdulaziz Al-Ajlan

Khaled Al-Abdulsalm

Khalid Alhudaib

 
 

 

Life Cycle

 

Egg

Adult

 Larva

Pupa

 

 

     All stages (egg, larva, pupa and adult) are spent inside the palm itself and the life cycle cannot be completed elsewhere. The females deposit about 300 eggs in separate holes or injuries on the palm. Eggs hatch in 2 to 5 days into legless grubs which bore into the interior of the palms, moving by peristaltic muscular contractions of the body and feed on the soft succulent tissues, discarding all fibrous material. The larval period varies from 1 to 3 months. The grubs pupate in an elongate oval, cylindrical cocoons made out of fibrous strands. At the end of the pupation period which lasts 14 to 21 days, the adult weevils emerge. Thus the life cycle is about 4 months.

 

The four stages

        

Egg    Larva    Pupa    Adult   Life Cycle

 

 

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