Insect Pest Incidence with the System of Rice Intensification: Results of a Multi-Location Study and a Meta-Analysis

The System of Rice Intensification (SRI) developed in Madagascar has spread to many parts the world, including India. This study assessing insect pest prevalence on rice grown with SRI vs. conventional methods at multiple locations India was prompted by reports that SRI-managed plants are healthier and more resistant disease damage. Field experiments were conducted under All-India Coordinated Improvement Project over a 5-year period. split-plot design assessed both cultivation different cultivars, hybrids improved varieties. Across eight locations, showed lower incidence stem borer, planthoppers, gall midge compared methods. Whorl maggots thrips, other hand, observed be higher. Grain yield significantly higher management across all locations. Higher ash, cellulose, hemicellulose, as well silica content could explain least part plants’ resistance Analysis guild composition revealed plots, there natural enemies (insect predators parasitoids) present fewer crop pests (phytophages). A meta-analysis considered published research this subject dead hearts, white ear-heads, leaf folders, along grain yield, plots.