7. Mealybug:  Ferrisia virgata;  Pseudococcus lilacinus (Pseudococcidae:  Hemiptera)

Nymphs, pale green, winged and wingless adults suck the sap from tender twigs, leaves and buds. It leads to yellowing of leaves, wilting of terminal shoots, blighted appearance of flower buds and dropping of fruits prematurely.
Bionomics and management: Refer coffee.