- The pink bollworm (Pectinophora gossypiella), is an insect known for being a pest in cotton farming.
- The adult is a small, thin, gray moth with fringed wings. The larva is a dull white, eight-legged caterpillar with conspicuous pink banding along its dorsum.
- The larva reaches one half inch in length.
- The pink bollworm is native to Asia, but has become an invasive species in most of the world’s cotton-growing regions.
- It reached the cotton belt in the southern United States by the 1920s.
- It is a major pest in the cotton fields of the southern California deserts.
- In parts of India, the pink bollworm is now resistant to first generation transgenic Bt cotton (Bollgard cotton) that expresses a single Bt gene (Cry1Ac).
- Monsanto has admitted that this variety is ineffective against the pink bollworm pest in parts of Gujarat, India.