Ace the Illinois Pesticide Applicator Exam 2026 – Cultivate Success and Protect What Matters!

Question: 1 / 400

Which of the following statements is true about biennial weeds?

They seed and die in the same year.

They can live for multiple years without seeding.

They germinate only during fall.

They seed in their second summer and die in winter.

Biennial weeds have a specific life cycle that spans two years. In the first year, these plants typically germinate and grow vegetatively, developing roots and leaves but not flowering or producing seeds. It is in the second year of their life cycle that biennial weeds flower, produce seeds, and subsequently die. This process generally occurs in the second summer, which aligns perfectly with the provided answer. By the end of this period, with the onset of winter, these plants usually perish, having completed their reproductive cycle.

Understanding this lifecycle is crucial for effective weed management and control strategies, as it helps practitioners identify the right timing for interventions and adapt their approaches based on the growth stages of these weeds.

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