Plant disease and defences quiz

Where is the sugar in the plant?

What type of organism causes TMV?

How can TMV be prevented?

Why do aphids 'attack' plants?

What are the symptoms of rose black spot?

What are the two ways aphids can be destroyed?

Aphids also act as vectors. What does this mean?

What is biological pest control?

Why do plants need magnesium ions?

What type of barrier is : producing antibacterial chemicals

How is rose black spot spread?

What type of barrier is : Leaf fall (lose the pathogens when they fall)

What type of defence response is : mimicry

What type of organism causes rose black spot?

Yellowing of the leaves due to a lack of magnesium is called...……..

What happens if a plant has a magnesium deficiency?

Why do plants need nitrates?

How is TMV treated?

What happens if a plant has a nitrate deficiency?

How is rose black spot prevented?

If the roots are damaged what can the plant NOT do?

What type of defence response is : thorns

What are the symptoms of TMV?

What type of defence response is : poisons

What type of defence response is: hairy stems/leaves

What type of barrier is :Bark on trees, layer of dead cells on the outside of stems

What part of the plant do worms and insect larvae damage?

What type of barrier is :Cellulose cell wall strengthen cells to resist invasion from pathogens

How is rose black spot treated?

In Rose black spot the leaves may op early. This means there's less leaves for …..

Aphids are classed as ………….

Mineral deficiencies are examples of ………..

What type of defence response is: drooping or curling of leaves when touched

What type of barrier to pathogens is: Tough waxy cuticle on the surface of leaves

Why is it important to prevent the spread of plant disease?