Climate change adaptation strategies for pest pressures, drought, and heat stress?

• A. Pest pressures reduce and droughts lessen; no changes needed.
• B. Only switch to drought-tolerant crops.
• C. Higher pest ranges, increased drought and heat stress; recommended adaptations include climate-resilient varieties, efficient irrigation, soil moisture conservation, diversification, and agroforestry.
• D. Climate change will not affect agriculture.

Answer: (C)

Climate change brings higher pest ranges, more frequent droughts, and greater heat stress, so the best approach is a coordinated set of adaptations that strengthen the whole system. Climate-resilient varieties help because they are bred to tolerate heat, endure drought, and resist emerging pests, preserving yields under stress. Efficient irrigation, such as drip systems and smart scheduling, uses water more precisely, reducing waste and keeping crops hydrated during dry and hot periods. Soil moisture conservation—through practices like mulch, residue retention, and reduced tillage—helps minimize water loss, improve soil structure, and sustain root-zone moisture during heat waves. Diversification, including crop rotations and intercropping, lowers pest buildup, disrupts disease cycles, and spreads risk across species, making farming less vulnerable to a single stressor. Agroforestry, by integrating trees or shrubs with crops, creates shade, lowers leaf temperatures, acts as windbreaks, and improves microclimates and soil health, all of which buffer plants against extreme conditions. Together, these strategies address the intertwined challenges of pests, drought, and heat, rather than relying on a single change.