CANKERS CANKERS AND AND

ABIOTIC ABIOTIC DISEASESDISEASES

LEARNING OBJECTIVES

New Vocabulary: facultative parasite, predisposition, hypovirulence, abiotic Annual, perennial, diffuse cankers

CANKERS

ATROPELLIS PINIPHILA

“DROUGHT CANKER” - PHOMOPSIS

Pitch Canker- Fusarium circinatum

CHESTNUT BLIGHT- CRYPHONECTRIA PARASITICA

Hypoxylon Canker

Winter Injury

Frost Damage

Extreme Cold

COMBUSTION HEAT, PRESSURE

FOSSIL FUELS

H-C-C-C-C-H

S, Pb

AIR N2 75-80%

O2 20-25%

CO2 0.03%

Pb

-C-C-C-C-

CO2 + CO + H2O

NO

NO2

+ O2O3

UV

UV

SO2

PAN OCH3-COONO2

H2SO4HNO3

+H2O

+ +

Air Pollution- Chlorine

Air Pollution- SO2