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ISA > Tree diagnosis > Flashcards

Tree diagnosis Flashcards

1
Q

Growth reduction of organisms specifically plants

A

Stunting

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2
Q

Leaf feeding damage caused by insects characterized by the loss of tissue between the leaf veins

A

Skeletonized

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3
Q

A chemical effect or inhibition of growth or development of plants that is induced by allelochemicals

A

Allelopathy

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4
Q

Area of wood that is undergoing decomposition (bacteria or fungi)

A

Decay

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5
Q

Process that occurs in the presence of oxygen

A

Aerobic

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6
Q

A localized diseased area on stems, roots and branches . Often shrunken and discolored

A

Canker

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7
Q

The causal agent of disease usually microrganisms

A

Pathogen

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8
Q

Disorders that are not caused by a pathogen and cannot be passed from one host to another

A

Non infectious

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9
Q

Any disease or disorder that kills young plant tissues

A

Blight

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10
Q

A loss of leaves from a tree or other plant by biological or mechanical means

A

Defoliation

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11
Q

A whitish or yellowish leaf discoloration caused by lack of chlorophyll. Often cause by nutrient deficiencies

A

Chlorosis

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12
Q

An irregullarly shaped area of disease on plant foilage

A

Leaf blotch

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13
Q

In plants, a disorder not directly caused by an insect, pathogen or injury

A

Physiocological disorder

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14
Q

A browning and shriveling of foilage especially on the leaf margin

A

Scortch

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15
Q

A plant reaction to a disease or disorder (eg wilting(.contrast with sign

A

Symptom

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16
Q

In pathology, biotic or abiotic agent that transmits a pathogen

A

Vector

17
Q

A disease caused by a certain group of fungi and characterized by reddish brown spots on the foilage and or the formation of stem galls

A

Rust

18
Q

Patches of disease or other damage on plant foilage

A

Leaf spot

19
Q

A microscopic roundworm. Some beneficial some cause damage

A

Nematode

20
Q

Physical evidence of causal agent (eg borer hole, frass) contast w symptom

A

Sign

21
Q

Any various fungi of the genus erysiphe that produce powdert conidia that appear as white, fuzzy coating on the upper leaf surfaces often causing distortion of the leaf

A

Powdery mildew

22
Q

A darkening of the vascular tissues of woody plants in response to disease

A

Vascular discoloration

23
Q

Substance that moves throughout organismadter it is absorbed, any disease or pest that affects entire organism

A

Systematic

24
Q

Capable of being spread to plants by other plants

A

Infectious

25
Q

A combination of factors contributing to the stress or decline of a tree

A

Complex

26
Q

A disorder or disease that occurs suddenly over a short period of time. Contras w chronic

A

Acute

27
Q

A localized death of tissue in a living organism

A

Necrosis

28
Q

A disorder caused by an infectious living agent

A

Biotic disorder

29
Q

A disorder or disease occurring over a long period of time. Contrast w acute

A

Chronic

30
Q

A fungus that appears as a black coating on the surface of leaves, fruits and other surfaces. Often found on sugary honeydew excreted by aphids

A

Sooty mold

31
Q

A transition zone from trunk to roots where the trunk expands. Root flare

A

Trunk flare

32
Q

A vertical split in the wood of a tree near the base of the bole caused by internal stress and low temperatures. Radial shake

A

Frost crack

33
Q

An abnormal swelling of plant tissues caused by gall wasps, mites nematodes and less commonly fungi or bacteria

A

Gall

34
Q

A plant disorder characterized by a shortening of the internodes and a proliferation of terminal shoots forming a dense brashlike mass of twigs

A

Witchs broom

35
Q
  1. Loss of turgor and subsequent drooping

2. Infectious disease that causes host to lose turgor

A

Wilt

36
Q

A condition in which the branches in the tree crown die from the tips toward the center

A

Dieback

ISA (6 decks)

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