Disinfestation of grain using hot-air dryers: Killing hidden infestations of grain weevils without damaging germination

2 SUMMARY 4 BACKGROUND 15 1. EXPERIMENTS TO FIND MOST HEAT-TOLERANT STAGE OF SITOPHILUS GRANARIUS AND SUBSEQUENT ASSESSMENT OF TOLERANCE OF THIS STAGE TO A RANGE OF TEMPERATURES 17 2. DEVELOPMENT OF AN INSECT MORTALITY MODEL AND THE OPPORTUNITY FOR THERMAL DISINFESTATION OF GRAIN 31 3. SIMULATION OF HEATED-AIR DRYER OPERATING CONDITIONS FOR DISINFESTATION OF GRAIN 43 4. EVALUATION OF THE SUITABILITY OF A FULL-SCALE, HEATED-AIR DRYER FOR DISINFESTATION OF GRAIN 58 CONCLUSIONS AND RECOMMENDATIONS 77