Question

1. the field of corn shown below was grown with 250 l/ha herbicide and no insecticide. based on what you observe, what was the resistance type of the corn? corn yield: 9.3 tons/ha none herbicide caterpillars caterpillars and herbicide

Explanation:

The corn was grown with 250 L/ha herbicide and no insecticide, and there is a good yield. This indicates resistance to the herbicide used. There is no evidence of caterpillar - related resistance as no insecticide was used and no mention of caterpillar damage.

Answer:

B. Herbicide