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Insects > Lecture 24 > Flashcards

Lecture 24 Flashcards

1
Q

pest

A

An organism that interferes with human interests

damaging crops or commodities

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2
Q

direct pest

A

eat leaves or what we want

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3
Q

indirect pest

A

reduce esthetic quality

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4
Q

how do you define a pest in a home?

A

depends on the point of view of the indiv

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5
Q

what is an ex of a spp that is seen both as a pest & beneficial depending on the point-of-view?

A

Yellow meal worms

In our cereal, they are pests

As food for our pet frog, lizard or tarantula, they are important

When we use them to study the impact of insecticides, they are beneficial

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6
Q

the study of the Proportional Diversity of Arthropods in Homes sampled how many homes?

A

50

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7
Q

the study of the Proportional Diversity of Arthropods in Homes found ______ of arthropods were flies

A

1/3

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8
Q

the study of the Proportional Diversity of Arthropods in Homes found ______% were spiders

A

20%

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9
Q

the study of the Proportional Diversity of Arthropods in Homes _______% were beetles

A

16%

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10
Q

in the study of the Proportional Diversity of Arthropods in Homes, how many insect spp were in a home on average?

A

93

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11
Q

what are the types of pests found in homes?

A

Stored products pests
Assoc with food or natural fabrics

Structural pests
Damaging to building structure

Ectoparasites
Assoc with humans or their pests

Nuisance/health hazard pests
Unpleasant, can transmit disease

Seasonal invaders
Come in to spend winter

Beneficial arthropods - eat other pests

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12
Q

what pests enter in food?

A

flour & grain beetles

indian meal moths

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13
Q

what pests are assoc with cereal & grains?

A

indian meal moths

flour & grain beetles

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14
Q

how do you know if you indian meal moths are present?

A

Webbing characteristic – on the surface of where they’re living

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15
Q

do indian meal moths fly?

A

weakly

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16
Q

what pests are banded as adults?

A

Carpet beetles & Larder beetles

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17
Q

what pests are hairy as larvae?

A

Carpet beetles & Larder beetles

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18
Q

what do Carpet beetles & Larder beetles feed on as larvae?

A

feed on fats, PROs, hair & skin from:

Leather, wool

Old meat

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19
Q

when do Carpet beetles & Larder beetles enter the food?

A

spring or early summer

can enter from the outside

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20
Q

which pests were found in every house in the Proportional Diversity of Arthropods in Homes study?

A

Carpet beetles & Larder beetles

Fungus gnats & gall midges

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21
Q

how long are flour & grain beetles?

A

2-4 mm long

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22
Q

how long are clothes moths?

A

6-10mm long

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23
Q

describe the larval stage of clothes moths

A

White larvae; one species case-bearing

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24
Q

what do clothes moths feed on?

A

Feed on hair, fur, wool & feathers –> anything from animals

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25
Q

where do the adults of clothes moths reside?

A

dark, undisturbed places

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26
Q

how do you deal with stored product pests?

A

prevent entry

prevent cross-contamination

vacuum & move things around

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27
Q

how do you prevent entry of store product pests?

A

Examine human & pet food brought into the house

Freeze food likely to contain pests

Isolate pet & wild-bird food

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28
Q

how do you prevent cross-contamination of stored product pests?

A

Keep food in sealed insect-proof containers

Empty containers before refilling

Clean up spills of vulnerable food

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29
Q

describe the appearance of carpenter ants

A

o Black or brown ants ~12 mm long

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30
Q

do carpenter ants eat wood?

A

no

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31
Q

where do carpenter ants nest?

A

rotten wood

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32
Q

what does decaying wood in an older building indicate?

A

presence of carpenter ants

33
Q

where are carpenter ants commonly found?

A

outside, in tree stumps etc.

34
Q

what pests are parallel-sided?

A

powder post beetles

35
Q

how are powder pest beetles transported?

A

ininfested wood

36
Q

what do powder post beetles create in their habitat? (3)

A

Tooth-pick size holes in wood furniture or structural timber

fine saw dust from the holes

make galleries

37
Q

what are the stored product pests?

A

flour & grain beetles

indian meal moths

carpet beetles & larder beetles

clothes moths

38
Q

what are the structural pests?

A

carpenter ants & powder post beetles

39
Q

how do you deal with structural pests?

A

prevent/discourage entry

baits & traps

40
Q

how do you prevent/discourage entry of structural pests?

A

Don’t transport infested wood or furniture
Powder post beetles

Remove rotting wood from buildings
Carpenter ants – indicator of rotten wood

Stack firewood off the ground & away from buildings

41
Q

when dealing with structural pests baits & traps are used the most for what pests?

A

carpenter ants

42
Q

how long are cockroaches?

A

1-4cm long

43
Q

where do cockroaches like to reside?

A

warm dark places

sewers

wall spaces

44
Q

describe the diet of a cockroach

A

Favour PRO & fat but will eat most things

45
Q

do cockroaches fly?

A

rarely

46
Q

how does someone get cockroaches?

A

Enter in infested items or from adjacent apartments

47
Q

how do house flies & allies enter a house?

A

through windows, doors etc.

48
Q

where do the larvae of house flies & allies grow?

A

manure & garbage

49
Q

what pests are excellent transmitters of disease organisms?

A

house flies & allies

50
Q

where do the larvae of fruit flies (vinegar flies) develop?

A

on decaying fruits or vegetables

51
Q

how do fruit flies enter a house?

A

Enter on food (usually as eggs)

52
Q

describe the appearance of ants (3)

A

Narrow waisted

mostly not winged

1-12 mm long

53
Q

describe the foraging trails of ants

A

attracted to sugars

Trail from nest to food source

Leave pheromone trail, all others follow

54
Q

where do ants nest?

A

inside a house structure or out

55
Q

what do fungus gnats & gall midges feed on?

A

plant roots & fungus

56
Q

what type of envr do fungus gnats & gall midges like?

A

moist soil

57
Q

how do fungus gnats & gall midges enter a home?

A

come in plants

58
Q

where do the moth fly (or drain fly) larvae situate?

A

live in drains

59
Q

what type of envr do silverfish & firebrats life?

A

most & hot envrs

60
Q

what do silverfish & firebrats feed on?

A

glue, ex: book bindings, paper etc.

61
Q

how do you deal with nuisance pests?

A

prevent/discourage entry

62
Q

what are the nuisance pests? (7)

A

silverfish & firebrats

moth flies (drain flies)

fungus gnats & gall midges

ants

fruit flies (vinegar flies)

house flies or allies

cockroaches

63
Q

How do you prevent/discourage entry of nuisance pests?

A

Maintain window screens, seal wall cracks

Avoid bringing in infested items
Cockroaches

Manage outside sources
Ant nests, garbage management for flies

Don’t leave food or food waste exposed

Reduce water source availability in the house
Cockroaches

64
Q

how do you prevent/discourage entry of cockroaches?

A

Avoid bringing in infested items

Reduce water source availability in the house

65
Q

How do you control infestations? (4)

A

Traps

Vacuuming

Diatomaceous earth

Insecticides
Baits
Space sprays
Residual sprays

66
Q

what insects should traps be used for when controlling an infestation?

A

cockroaches, flies, ants

67
Q

what insects should vacuuming be used for when controlling an infestation?

A

cockroaches, ants, beetles, moths

68
Q

what insects should diatomaceous earth be used for when controlling an infestation?

A

cockroaches & ants

69
Q

what insects should baits be used for when controlling an infestation?

A

ants, cockroaches

70
Q

what insects should space sprays be used for when controlling an infestation?

A

flies

71
Q

what are 2 insect invaders?

A

cluster flies

multicoloured asian ladybeetle

72
Q

where do multicoloured asian ladybeetles overwinter? & why?

A

congregate in buildings in the fall

in their native habitat, they fly to cliffs & mountains to overwinter

Since the prairies don’t have these, they go to the tallest structures that they can find which are buildings

73
Q

how do multicoloured asian ladybeetles respond to threats?

A

bleed

74
Q

where & how do cluster flies overwinter?

A

attics

aggregate in large clusters

75
Q

how do cluster flies know when winter is over? where do they go?

A

When light comes in or weather warms up they will leave

No one knows where they go

76
Q

sow bugs/ pill bugs are pest found where?

A

in gardens, sometimes homes

77
Q

how do sow bugs/ pill bugs enter homes?

A

Windows left open; coming up laundry room drain

78
Q

how do you prevent sow bugs/ pill bugs from entering your home?

A

Place window screen over basement drain

Insects (33 decks)

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