ISA - Arborist Certification Test - Chapter
10
stressed - correct answer If a tree is not well suited for the site in chich it has been
planted, it may become _______, predisposing it to other problems.
roots - correct answer A common mistake in diagnosis is to carefully examine the
above ground portion of the tree, while ignoring the ______.
abiotic - correct answer Leaf scorch, girdling roots, and mineral deficiencies are
examples of ______ disorders
egg laying - correct answer Insect damage to trees is usually the result of feeding or
_____ ______.
vectors - correct answer Insects that carry plant pathogens are said to be ______.
nematodes - correct answer Microscopic worms that sometimes feed on trees and
may carry diseases are called ______.
bacterium - correct answer Fire blight is and example of a disease caused by a
______.
allelopathy - correct answer _______ is the chemical inhibition of growth and
development of one plant by another.
herbicide - correct answer Curling and cupping of the foliage, and parallel venation,
are common symptoms of ______ damage.
witch's broom - correct answer abnormal growth of multiple secondary shoots
vector - correct answer carrier of pathogens
canker - correct answer localized dead tissue, often shrunken and discolored
gall - correct answer swollen plant tissue often insect or mite induced
stunting - correct answer reduced growth
stress - correct answer may predispose a plant to other problems
pathogen - correct answer causal agent of disease
leaf spot - correct answer dead spots on the foliage
10
stressed - correct answer If a tree is not well suited for the site in chich it has been
planted, it may become _______, predisposing it to other problems.
roots - correct answer A common mistake in diagnosis is to carefully examine the
above ground portion of the tree, while ignoring the ______.
abiotic - correct answer Leaf scorch, girdling roots, and mineral deficiencies are
examples of ______ disorders
egg laying - correct answer Insect damage to trees is usually the result of feeding or
_____ ______.
vectors - correct answer Insects that carry plant pathogens are said to be ______.
nematodes - correct answer Microscopic worms that sometimes feed on trees and
may carry diseases are called ______.
bacterium - correct answer Fire blight is and example of a disease caused by a
______.
allelopathy - correct answer _______ is the chemical inhibition of growth and
development of one plant by another.
herbicide - correct answer Curling and cupping of the foliage, and parallel venation,
are common symptoms of ______ damage.
witch's broom - correct answer abnormal growth of multiple secondary shoots
vector - correct answer carrier of pathogens
canker - correct answer localized dead tissue, often shrunken and discolored
gall - correct answer swollen plant tissue often insect or mite induced
stunting - correct answer reduced growth
stress - correct answer may predispose a plant to other problems
pathogen - correct answer causal agent of disease
leaf spot - correct answer dead spots on the foliage
