coral spot

Question 1

damage caused by coral spot is?

Answer 1

found on dead branches of trees/shrubs-a mass of pink pustules sticking out of the dead wood

Question 2

disease is common on what plant?

Answer 2

broad leaved species eg: horse chestnut, Magnolia, cane fruit (gooseberry), Ribes )currant bushes),

Question 3

life cycle and spread

Answer 3

spores live on dead trees and canes

plants are infected by spores landing on them end entering through wounds/damaged tissues/lenticles.

made worse if plant under stress by drought/water logging.

pink pustules develop when infected area of wood has died.

spores released from pustules and spread by wind and water splash

Question 4

control of coral spot

Answer 4

pruning in dry weather

cuts made away from junction points

cut away infected stems and destroy material

pruning paints used in dry weather containing octane acids