Question: An entomologist measures the amount of rootworm damage to non-Bt corn plants in a ‘refuge in a block’ field compared to a ‘refuge in a bag’ field. The non-Bt refuge plants have LESS damage on average in the ‘refuge in the bag’ field than in the ‘refuge in a block’ field. Which choice below provides the best explanation for this contrasting observation?
Looks Good! Correct: Yes, the observation of less damage also corresponds with an observation of more damage to the neighboring Bt plants in the RIB field. So movement of the CRW larvae as they grow is a valid explanation.