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The second generation begins from late July to early August, and the larvae of this Iranian Pistachio generation pierce the green skin of the fruit and feed on the inner surface of the green skin, or enter the fruit from the cleft of the bony skin (where the pistachio smiles) and from the brain. Fruits feed.

 

Feeding the larvae at this stage of the fruit kernel, the inner part of the green skin of the pistachio and the larval droppings on the bony skin causes dark spots on the bony skin, which reduces the quality and marketability of pistachios.

 

Also, the hole created by the larvae can be an infiltration pathway for aflatoxin-producing fungi and contaminate the fruits with aflatoxin. Pested pistachios in the second generation are called fat in Rafsanjan. After maturing, the second generation larvae move to the trunks of trees and spend the winter under the bark of the trunk and inside the larval cells.