Fungal Diseases Flashcards

All 5 cards in this deck

What type of pathogen causes rose black spot?

A fungus.

What are the symptoms of rose black spot?

Purple or black spots develop on the leaves, which often turn yellow and drop early.

How is rose black spot spread?

In the environment, by water or by wind.

How can rose black spot be treated?

By using fungicides and/or removing and destroying the affected leaves.

Why does rose black spot affect the growth of a rose plant?

Photosynthesis is reduced because the leaves are damaged and drop early.