CCA Ontario Integrated Pest Management 2025 – 400 Free Practice Questions to Pass the Exam

Utilizing no-till operations can lead to increased prevalence of biennial weeds because this method leaves crop residue on the soil surface and minimizes soil disturbance. In a no-till system, the soil is not turned over, which can create a more favorable environment for biennial weeds that thrive in undisturbed soil conditions.

Biennial weeds typically require two years to complete their life cycle, and the lack of soil disturbance allows them to establish and proliferate more effectively than in tillage systems where their seedbanks might be disrupted. Other weed types, particularly annual weeds, might be managed more effectively with traditional tillage as the tilling process interrupts their growth and development cycles. Therefore, with no-till operations, the persistence and establishment of biennial weed species can increase, while the density of annual weeds might not be as effectively controlled compared to a tillage system.