Point out why pest resistance has compromised genetic cotton traits in India. How can non-transgenic high-density planting systems overcome these recurring biotechnology challenges?

Pest resistance has weakened the promise of genetically modified cotton in India, especially against pink bollworm. Overdependence on long-duration Bt hybrids and weak refuge compliance have sped up resistance, while Bt toxin expression also falls in older plants.

• Why traits failed: BG-I started failing against pink bollworm in 2009 and BG-II by 2014.
• Systemic factors: long crop duration, poor refuge planting, declining toxin levels after 110-120 days, and spread of secondary pests.
• Farm impact: higher pesticide use, rising costs, and stagnant yields.

How non-transgenic HDPS helps:

• Uses compact, early-maturing varieties, cutting crop duration and helping the crop escape late pink bollworm attack.
• Raises plant population per hectare, improving productivity without Bt dependence.
• Fits mechanised sowing, spraying and harvesting, reducing labour costs.
• Supports IPM through traps, biopesticides and cultural control, slowing resistance build-up.

Thus, non-transgenic high-density planting offers a more resilient and sustainable cotton system, combining higher output with lower pest pressure and less biotech risk.