rust fungus causing rust spots on apples and pears etc
fruit with red or yellow or green skin and sweet to tart crisp whitish flesh
native Eurasian tree widely cultivated in many varieties for its firm rounded edible fruits
become destroyed by water, air, or a corrosive such as an acid
become coated with oxide
of the brown color of rust
the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water
any of various fungi causing rust disease in plants
a red or brown oxide coating on iron or steel caused by the action of oxygen and moisture
a plant disease that produces a reddish-brown discoloration of leaves and stems; caused by various rust fungi
