Insect and pests of Jackfruit

a) Coconut Scale: Aspidiotus destructor Signoret

• Coconut scale resembles other armored scales in that the body is protected by a waxy cover.
• Infestations may be noted by the formation of closely packed colonies composed of what resemble miniature fried eggs.
• Females develop through two nymphal stages, while males have an additional non-feeding pre-pupal stage (four immature stages).
• Removal of sap from leaves, petioles, peduncles and fruits leads to discoloration, depressions, and tissue distortions on leaves.
• Pruning and training of fruit trees and proper disposal of infested leaves, branches and twigs will help control scale insects on nursery plants and trees.

b) Pyriform Scale: Protopulvinaria pyrifomis Cockerell

• If your plants have a black-looking, sooty appearance, flip the leaves over and look for scale pests, such as the pyriform scale.
• Damage can result in poor vigor and eventually, defoliation. There are repeating generations of this sucking pest during the year, so careful monitoring of plants is required to avoid scale population build-up.