3. Crop Protection - Weeds, Pests and Diseases Flashcards Preview

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Flashcards in 3. Crop Protection - Weeds, Pests and Diseases Deck (8)
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1
Q

What can happen as agricultural ecosystems are greatly simplified?

A

Weed competitors, disease and pest populations can all multiply rapidly, reducing sustainability

2
Q

What do weeds compete with?

A

Crop plants

3
Q

What do pests and diseases damage?

A

Leaves, reducing productivity

4
Q

Why do annual plants make successful weeds?

A

Rapid growth
Short life cycle
High seed output
long-term seed viability

5
Q

What are three perennial weed adaptations?

A

Competitive adaptations
Storage organs
Vegetative reproduction

6
Q

What type of animals are most pests of plant crops?

A

Invertebrates (e.g. insects, nematodes, worms)

7
Q

What three things can plant diseases be caused by?

A

Fungi, bacteria, viruses

8
Q

What type of animal can plant diseases be carried by?

A

Invertebrates