Damage symptoms:

 Leaf Yellowing and Wilting:

Scales suck sap from the leaves, causing them to yellow and eventually wilt.

Premature Fruit Drop:

Infestation can disrupt the fruit's development and cause it to drop prematurely.

Stunted or Distorted Fruit Growth:

Infested fruits may not develop properly, resulting in smaller or misshapen fruits.

Pink Blemishes on Fruits:

White mango scale, a specific type of mango scale, can leave pink blemishes on the surface of ripe fruits.

Sooty Mold:

The scales secrete a sugary substance called honeydew, which can promote the growth of sooty mould, a black fungal growth on the plant.

Withering and Dying of Twigs:

Heavy infestations can lead to the drying up of twigs and, in severe cases, the death of entire branches.

Clicking Sound:

The movement of mango jassids (another type of insect) can be heard as a clicking sound amidst the leaves.