ISA - Arborist Certification Test - Chapter
10 Questions & Answers(SCORED A+)
stressed - 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 - ANSWER-A common mistake in diagnosis is to carefully examine the above
ground portion of the tree, while ignoring the ______.
abiotic - ANSWER-Leaf scorch, girdling roots, and mineral deficiencies are examples of
______ disorders
egg laying - ANSWER-Insect damage to trees is usually the result of feeding or _____
______.
vectors - ANSWER-Insects that carry plant pathogens are said to be ______.
nematodes - ANSWER-Microscopic worms that sometimes feed on trees and may carry
diseases are called ______.
bacterium - ANSWER-Fire blight is and example of a disease caused by a ______.
allelopathy - ANSWER-_______ is the chemical inhibition of growth and development of
one plant by another.
herbicide - ANSWER-Curling and cupping of the foliage, and parallel venation, are
common symptoms of ______ damage.
witch's broom - ANSWER-abnormal growth of multiple secondary shoots
vector - ANSWER-carrier of pathogens
canker - ANSWER-localized dead tissue, often shrunken and discolored
gall - ANSWER-swollen plant tissue often insect or mite induced
stunting - ANSWER-reduced growth
stress - ANSWER-may predispose a plant to other problems
pathogen - ANSWER-causal agent of disease
leaf spot - ANSWER-dead spots on the foliage
10 Questions & Answers(SCORED A+)
stressed - 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 - ANSWER-A common mistake in diagnosis is to carefully examine the above
ground portion of the tree, while ignoring the ______.
abiotic - ANSWER-Leaf scorch, girdling roots, and mineral deficiencies are examples of
______ disorders
egg laying - ANSWER-Insect damage to trees is usually the result of feeding or _____
______.
vectors - ANSWER-Insects that carry plant pathogens are said to be ______.
nematodes - ANSWER-Microscopic worms that sometimes feed on trees and may carry
diseases are called ______.
bacterium - ANSWER-Fire blight is and example of a disease caused by a ______.
allelopathy - ANSWER-_______ is the chemical inhibition of growth and development of
one plant by another.
herbicide - ANSWER-Curling and cupping of the foliage, and parallel venation, are
common symptoms of ______ damage.
witch's broom - ANSWER-abnormal growth of multiple secondary shoots
vector - ANSWER-carrier of pathogens
canker - ANSWER-localized dead tissue, often shrunken and discolored
gall - ANSWER-swollen plant tissue often insect or mite induced
stunting - ANSWER-reduced growth
stress - ANSWER-may predispose a plant to other problems
pathogen - ANSWER-causal agent of disease
leaf spot - ANSWER-dead spots on the foliage
