1. The most common problem is the Mealy bug , which feeds on plant sap.

2. The most classical example of weed - destroying insect in India is the prickly - pear cactus mealy - bug Dactylopius tontentosus .

3. Aphids, mealy bug and thrips cause deformity in new growth. Treat with a diluted pesticide or remove pests by hand. Never use a soap-based insecticide.

4. Cotton growers in Pakistan generally have a sound understanding of cotton production technology, but yields are limited due to the cotton leaf curl virus and mealy bug.