Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key


Play button


Play button




Click to flip

9 Cards in this Set

  • Front
  • Back
What causes Indian Hawthorne leaf spot?
Entomosporium maculatum
What is a spot?
a symptom of disease characterized by a limited necrotic area, as on leaves, flowers, and stems
What is blight?
sudden, severe, and extensive spotting, discoloration, wilting, or destruction of leaves, flowers, stems, or entire plants
What is a gall?
abnormal swelling or localized outgrowth, often roughly spherical, produced by a plant as a result of attack by a fungus, bacterium, nematode, insect, or other organism
What is wilt?
drooping of leaves and stems from lack of water (inadequate water supply or excessive transpiration);
vascular disease that interrupts normal water uptake
What is mosaic/mottling?
disease symptom characterized by non-uniform coloration, with intermingled normal, light green and yellowish patches, usually caused by a virus; often used interchangeably with mottle
What is stunting?
reduction in height of a vertical axis resulting from a progressive reduction in the length of successive internodes or a decrease in their number
What is canker?
a plant disease characterized (in woody plants) by the death of cambium tissue and loss and/or malformation of bark, or (in non-woody plants) by the formation of sharply delineated, dry, necrotic, localized lesions on the stem; "canker" may also be used to refer to the lesion itself, particularly in woody plants
What is girdling?
to circle and cut through a stem or the bark and outer few rings of wood, disrupting the phloem and xylem