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Insects pests > insects > Flashcards

insects Flashcards

1
Q

Les insectes survivent dans plus d’environnements que tous les autres animaux? vrai ou faux

A

vrai

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2
Q

les insectes sont-ils les plus nombreux sur terre? et sont-ils des animaux?

A

oui

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3
Q

With that many insects, how is it possible for
plants and animals to survive? quel % sont considérés des pests?

A

Most insects
are harmless or even beneficial; less than
…1…% are considered pests.

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4
Q

quels sont les bénéfices des insectes? (8 mais trouvez 4)

A

*Insects aid in crop pollination
*Insects improve the soil’s physical condition
burrowing throughout the surface layer.
*Insects recycle waste and are valuable …scavengers
*natural enemies of pests
*feed on weed
*serve as food sources
*Some insects produce products humans use,
such as honey, wax, silk, and dyes.
*add beauty to a garden.

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5
Q

How are known the major divisions of insects (nom)

A

Phyla

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6
Q

how is the insect body structured?

A

exoskeleton (an insect outer body support),
three body regions,
three pairs of legs,
one pair of antennae (absent in Protura (soil “insects”), zero to two pairs of wings.

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7
Q

vrai ou faux : immature insects have wings

A

false, they lack wings

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8
Q

what is an exoskeleton?

A

a tough outer body wall

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9
Q

insects have bones and skeleton?

A

false

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10
Q

How can insects can continue to grow despite their exoskeleton?

A

they molt

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11
Q

What are the three parts of an insect body structure?

A

Head, thorax and abdomen

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12
Q

what are the main features of an insect head?

A

eyes, antennae and mouthparts

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13
Q

what are the two types of insect eyes?

A

simple and compound

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14
Q

t-f most insects eyes are sensitive to light

A

true

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15
Q

les antennes sont primairement les organes de quel sens ? peuvent-ils avoir d,autres fonctions si oui lesquelles?

A

smell!
but
can serve other functions, such as helping
insects perceive humidity changes, vibrations,
and wind direction and velocity.

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16
Q

nommez les différentes types de mouthparts (voir photo)

A

chewing (A),
piercing-sucking (D),
Siphoning (C), and
sponging (B).

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17
Q

Est-ce que les mouthparts des insects adultes vs des pups (larves) peuvent être différentes?

A

yes

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18
Q

Est-ce que les mouthparts des insects adultes vs des nymphs peuvent être différentes?

A

non

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19
Q

quels sont les résultats des chewing mouthparts? et exemples d’insectes

A

noticeable holes in
leaves, wood, or fruit.
bettles and carterpillars

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20
Q

résultats des Piercing–Sucking mouthparts? (action et résulytats sur feuilles)

A

punctures tissue
and sucks fluids from the host. microscopiques taches blanches

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21
Q

mouthparts that include a long tube adapted to draw nectar from flowers. work like straws?

A

siphoning

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22
Q

how is called the spongy tip from the spounging mouthparts?

A

labellum

23
Q

comment sappelle la mouthpart qui ressemble a une ventouse (suck up
liquids or readily soluble food.)

A

sponging moiuthparts

24
Q

quels sont les 3 segments du thorax?

A

prothorax, mesothorax et metathorax

25
Q

how are named the circular openings used for brething?

A

spiracles

26
Q

what are the spiracles?

A

how are named the circular openings used for brething?

27
Q

est-ce que les ailes ont des muscles?

A

non

28
Q

qu’est-ce qui peut être utile pour l’identification des insectes dans les ailes?

A

vains or venation

29
Q

what is he most important characteristic
of an insect?

A

presence of three pairs
of jointed legs.

30
Q

Knowledge of insect life cycles can help identify: (4) savoir au moins 2

A

1.The life stage(s) of an insect that may cause
plant damage
2.The life stage of the insect that is easiest to
manage
3.Cultural choices
4.How local climate and ecological conditions
may affect insect life cycles

31
Q

The process by which insects change throughout
their life is called …

A

methamorphosis

32
Q

what are the three stages of gradual metamorphosis?

A

The three stages of gradual
metamorphosis are egg, nymph, and adult

33
Q

what differencies an adult from the nymph?

A

The nymphs have eyes and antennae,
resemble the adults, and often have similar feeding habits;
however, nymphs are smaller and have no wings

34
Q

The stage of life between each molt is an…?

A

instar

35
Q

what is an instar?

A

stage between each molt

36
Q

can the number of instars vary from a specie to another with food supply, temp., moisture?

A

The number of instars, and frequency of molts, varies
considerably with species and to some extent with food
supply, temperature, and moisture.

37
Q

what are the 4 stages of complete metamorphosis?

A

egg, larva, pupa, and adult.

38
Q

do the larvas have legs?

A

A larva may or may not have legs, antennae, or eyes. Sometimes they appear
wormlike or are covered with spines or tufts of hair.

39
Q

During …………… stage many tissues
and structures are completely broken down and structures of the adult are formed.

A

the pupal stage

40
Q

l’habitat et la nourriture des adultes et des larves est le meme?

A

faux, il peut être le même mais peut être entièrement différent et la nourriture et souvent entièrement différente

41
Q

qu,elle est le nom de la classe des insectes

A

insecta

42
Q

A Common Non-Insect Arthropod Pests of
Plants

A

Spider mites

43
Q

spider mites composition

A

two
body regions, three (larvae) or four (on nymphs and
adults) pairs of legs, and no antennae

44
Q

spider mites type of mouthparts

A

sucking,
They are so small that they are often not
discovered until after they have damaged the plant.

45
Q

type of damage:

A

small
yellow or brown spots on the leaves

46
Q

t-f: All mites are pests?

A

False, some are beneficial

47
Q

what are nematodes?
nombre?

A

Non-arthropod animals
extremelly abundant

48
Q

how many molts nematodes undergo?

A

4

49
Q

t-F: Nematode species often have both males and females?

A

True, but they often reproduce asexually

50
Q

nematodes survival strategy

A

The most common method plant nematodes
use to evade predation in the soil is by living
inside plant tissue or by limiting their mobility
in the soil environment

51
Q

nematodes dissemination:

A

ability to undergo -cryptobiosis- is one reason
some nematode species are very difficult to eradicate from a field

52
Q

what is cryptobiosis? -nematodes

A

arreter la vie: état du métabolisme complètement arrêté d’un organisme vivant. (pas mort) donc dissemination mechanique (souliers, tracteurs, plantes en pots..)

53
Q

two main nematodes groups:

A

cyst nematodes and the root -knot nematodes

Insects pests (3 decks)

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