Title: Insects and other enemies of plants

What is the total number of known insect species mentioned in the text?

All insects are harmful to plants.

Q: All insects are harmful to plants.
A: false

Some insects are beneficial for agriculture by feeding on harmful insects.

Q: Some insects are beneficial for agriculture by feeding on harmful insects.
A: true

What are the two methods mentioned in the text for attacking noxious insects?

Which insect is identified as the most threatening to olive trees?

Q: Which insect is identified as the most threatening to olive trees?
- Mediterranean fly
- Dacus oleae (correct)
- Phylloxera
- Silkworm

The olives affected by Dacus oleae show light-brown to _ spots.

Complete the gap with the correct word

The olives affected by Dacus oleae show light-brown to _ spots.

Q: The olives affected by Dacus oleae show light-brown to [...] spots.
A: blackish brown

The distribution of the olive fruit fly is confined to which zone?

Q: The distribution of the olive fruit fly is confined to which zone?
- Tropical zone
- Arctic zone
- Mediterranean zone (correct)
- Desert zone

The damage caused by Dacus oleae can reduce olive yields by as much as 50%

Q: The damage caused by Dacus oleae can reduce olive yields by as much as 50%
A: false

Which method of control is suggested for managing Dacus oleae in olive cultivation?

The treatment for controlling Dacus oleae should be repeated at intervals of _ days.

Complete the gap with the correct number

Q: The treatment for controlling Dacus oleae should be repeated at intervals of[...] days.
A: 20

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