Mango gall midge

The mango gall midge (Procontarinia pustulata) belongs to the order Diptera and the family Cecidomyiidae. This insect is a specialized pest known for causing significant damage to mango orchards globally. Despite its small size, its ability to infest large areas rapidly makes it a priority concern for plant pathologists and agronomists.

The host plant is primarily the mango tree (Mangifera indica). The pest prefers young, actively growing leaves and floral tissues. By specifically targeting the most vigorous parts of the tree, the mango gall midge can significantly impact the overall health and yield potential of the plantation.

The life cycle involves a direct interaction with the host plant's physiology. The female lays eggs in the leaf tissue, and upon hatching, the larvae induce the plant to form galls. These galls serve as both a shelter and a food source for the developing larvae, protecting them from environmental factors and predators.

The primary symptom of infestation is the formation of numerous pustules on the leaf surface. These galls disrupt photosynthesis and lead to leaf chlorosis or distortion. Severe infestations cause premature leaf shedding, which weakens the tree's immune system and reduces its ability to produce high-quality fruits.

Integrated pest management (IPM) is essential for controlling Procontarinia pustulata. Recommended practices include:

• Regular monitoring of new foliage growth during the flushing season.
• Sanitation, including the collection and destruction of fallen infested leaves.
• Application of selective insecticides during the adult flight period.
• Encouraging natural biological control agents such as parasitic wasps.