Aptive Pest Control Practice Test

Biennial weeds spend their first year mainly growing and building vegetative tissues, then in the second year they flower and produce seeds. This seed production is how they propagate to new locations, completing their two-year life cycle. While stolons, rhizomes, and bulbs are methods of vegetative reproduction used by some perennials, they are not the typical means by which biennials reproduce, making seeds the correct answer.