Pests and Diseases

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Transcript Pests and Diseases

Pests and Diseases
Aphid – Adult stage
Fungus Gnat – Adult stage
Leaf Miner – Adult stage
Mealy Bug – Adult stage
Scale – Adult Stage
Snail/Slug – Adult Stage
Spider Mite – Adult Stage
Thrip – Adult Stage
Whitefly – Adult Stage
Anthracnose - damage
Black Spot – damage
Symptoms:
Yellowing of leaves or tissue death
Premature leaf drop
General decline in the growth and vigor of the
plant
Botrytis – damage
Symptoms:
Brown plant tissue
Blights bumps or cankers
Fruit or bulb rot or end rot
Damping Off - damage
Symptoms:
appear water soaked and slimy. Sometimes
mycelium can be seen on dew-covered grass in
early morning. The dead tissue may mat
together somewhat like paper-mache and
form a crust over the soil surface.
Mosaic Virus – damage
Symptoms:
Often these leaves will also be curled upward, or appear as if
their growth has been stunted. Typically these leaves will
have yellowish spot on them, adding to their mottled
appearance. If cucumber fruits are affected they will vary in
color from light green to dark green mottled areas and some
which pale to white. Affected areas of the curcurbit family
plants may also be covered with warts or alternately the skins
may be have faded and be very white and smooth.
Powdery Mildew – damage
Symptoms:
Stunting or distortion of leaves, buds, growing tips and
fruit
Yellowing of leaves or tissue death
Premature leaf drop
General decline in the growth and vigor of the plant