Weeds and Integrated Pest Management - BOT1000

These flashcards cover key concepts related to weeds and integrated pest management as discussed in the BOT1000 lecture.

What are weeds?

Weeds are plants that grow in places where they are not wanted and compete with cultural plants for nutrients, light, and water.

List some negative impacts of weeds.

Weeds can cause low yield, bad taste in hay and silage, physically injure mucous membranes, affect milk quality, and outcompete more valuable species.

What is integrated pest management?

Integrated pest management involves the regulation of how pests and weeds should be managed, lowering climatic and environmental impacts, and using alternative strategies before resorting to herbicides or pesticides.

What are annual weeds?

Annual weeds, such as mallow, complete their life cycle in one growing season, typically growing in spring and dying in winter.

What are biennial weeds?

Biennial weeds, such as shepherd’s purse, take two years to complete their life cycle, typically growing in the first year and flowering in the second.

Identify some perennial weeds.

Perennial weeds include plants like dandelion, with life cycles that can last multiple years.

What is the purpose of understanding weed biology?

Understanding weed biology assists in non-chemical management strategies, making it easier to control weed populations.

Explain the significance of lifecycle timing in weed control.

The timing of control can affect a weed’s ability to regrow and impact overall forage yield and nutritional quality.

What is a common toxic weed mentioned in the lecture?

Common Ragwort (Jacobaea vulgaris) is mentioned as a toxic weed.

What strategies are used in integrated pest management to prevent resistance?

Integrated pest management employs alternative strategies before herbicides, lowering the overall efficiency while often requiring higher labor needs.