問題一覧
1
The "common cause" of "damping-off" of vegetables in the Philippines
Phytopthora
2
It transmits the grassy and rugged stunt virus
Nilaparvata lugens
3
A "major" pest of EGGPLANT
Leucnodes orbinalis
4
Also known as ASIATIC "palm weevil", the adults bore through CABBAGE while the legless larvae feed on the soft bud of the COCONUT
Resulting on the destruction of the whole crown.
Rhynchophorus ferrugineus
5
SHEATH BLIGHT of RICE and corn is caused by
Rhizoctonia solani
6
Sweet potato is the host plant of Cylasformicarius commonly
Known as
Sweet potato weevil
7
This control method requires host specificity to be effective
biological
8
Good recommendation against golden kuhol
water management
9
The "structure" that facilitates efficient dispersal of aquatic weed
pericarp
10
The allelopathic substance produced by plants which are effective
Against another plant
koline
11
The weed control strategy which involves the use of mycoherbicide
biological
12
The term allelopathy came from the Greek words
allelon and pathos
13
The specific chemical intended for weed control is
herbicide
14
Exposure of weed seeds to low temperature to overcome
Dormancy
stratification
15
Which of the following is not an example of phanerogam?
goosegrass
16
A "grassy weed" capable of producing contractile roots and arrested
Shoot growth when subjected to extremely dry condition
large crab grass
17
This is the vegetative propagule that allows reproduction of Pistia
Stratiotes
off shoot
18
Some of the benefits that animals can derive from weeds is
hostplant to pathogens
19
This pesticide formulation usually contain 4 – 10 % active
Ingredient and are applied in dry form
dusts
20
In this pesticide formulation, the active ingredient is in dry solids
Or liquids which upon mixture with another substance will liberate
The toxic material in the form of gas,smoke or finely divided
Particles.
fumigants
21
In this pesticide formulation, the active ingredient is suspended in
A container under pressure
aerosols
22
In the preparation of the active materials in a pesticide, which
Among the following characteristics are being considered and
Altered to achieve stability of the chemical
all
23
In pesticide formulation, this material is used to facilitate creeping
Or spreading over a surface so that the area covered id increasingly
Greater
spreader
24
In pesticide formulation, this material can be a gas, liquid or solid
Substance used to dilute, propel, or suspend an active material
During application
carrier
25
Refers to the material in the pesticide mixture which would not
Prevent damage or destroy pests if used by itself
inert ingredient
26
The following, except one, are functions of a deflocculating agent
When added into a pesticide mixture
to increase per unit cost
27
This adhesive material increases the tenacity of substances in the
Pesticide mixture
sticker
28
Refers to the material in the pesticide mixture which improves the
Emulsifying,dispersing,spreading,wetting or other surface modifying
Properties of liquids
surfactant
29
The process by which an insect accommodates growth
Ecdysis
30
The part of the mouthparts without a palpus
Mandibles
31
The thrips to this order
Thysanoptera
32
Termites have this type of mouthparts
Chewing-sucking
33
Thysanopterans have this type of mouthparts
Piercing-sucking
34
Adult moths and butterflies have this type of mouthparts
Siphoning type
35
These are elongated, segmented structures of varying designs and
Are used for sensory purposes
Antennae
36
The characteristics mode of life of a species or its place in the
Environment, its relation to food, enemies, etc.
Niche
37
Insects belonging to this order are short-lived and die in 1-2 days
ephemeroptera
38
A mechanism of insect resistance that is described as refractory to
Guests
Antixenosis
39
This is an example of an egg parasitoid
Trichogramma chilonis
40
The time over which the pathogen fruiting body or lesion
Continues to produce new inoculum
Infectious period
41
Its quality, intensity, and duration affect the growth of both host
And the pathogen
Light
42
A group of pathogens that infect a set of plant varieties
Pathovar
43
Abscission layer is an example of
Historical defense structure
44
What is wax in plant leaves for?
passive defense
45
What is the molecular weight of the RNA of viroids?
110,00
46
A type of parasitoid that develop in or on non-parasitic host
primary parasitoid
47
An area that includes all organisms there in and their physical
Environment
ecosystem
48
The following are examples of cultural methods except
use of rotary weeder
49
Moldy grains that are discolored and carry-off odors suffer a
Reduction in
quality
50
The disease first reported to be caused by mycoplasma-like
Organisms in Japan
aster yellows
51
One of the first plant diseases studied in the Philippines
coffee rust
52
The cause of coconut bud rot is
Phytophthora palmivora
53
Corn downy mildew disease was completely controlled in 1978 by
Chemical seed treatment
54
A "harmful alteration" of the normal physiological and biochemical
Development of a plant.
disease
55
A symptom characterized by a sharply defined variegated pattern
mosaic
56
The structure of the pathogen that are found associated with the
Infection host
signs
57
A kind of symptoms involving the death of protoplasts, cells, or
Tissues
necrotic
58
This weed is toxic to animals because of the diarrhea it can cause
When ingested
Chromolaena odorata
59
Water lettuce is considered an “evergreen” or a perennial weed
Reproducing by this vegetative propagule
off shoot
60
Seed dispersal through water runoff is common among weeds
Mainly because
seeds are light weight and possess film enabling them to float
61
In weeds-crop association, allelophaty causes
the weeds to secrete substances that may stimulate or retard The growth of the associated crop
62
This grass was initially introduced to Southeast Asia as a turf grass
But then grow more luxuriantly as a weed
Cynodon dactylon
63
This is considered the most competitive stage of the weed plant
seedling stage
64
Which among the following weeds is botha monocot and a
Broadleaf?
Monochoria vaginalis
65
Refers to the measure of the adaptive poterntial of a weed enabling
It to survive in an environment continuously disturbed by man is
persistence
66
The lifecycle classification of a weed that germinates, grows
Vegetatively, produce seeds and live year to year
perennial weed
67
The weeds found in temperate areas differ from those found in the
Tropics mainly because of
the difference in climatic Conditions
68
A Biological control agent is said to be successful if
all
69
he following are major weeds in lowland rice. Which among them
Is not an annual grass?
Cyperus iria
70
The following are common major weeds in vegetable crops. Which
Among them is not an annual broadleaf?
Cyperus rotundus
71
Dysdercus cingulatus is an insect pest of cotton which causes the
Cotton bolls to be deformed and fibers discoloured by nymphs and
Adults. What is the common name of this pest?
cotton stainer
72
This mango fruitfly causes brown punctures on ripe fruits with
Eggs or maggots inside. The infested mango fruits will eventually
Rot.
Bactrocera dorsalis
73
In this insect pest of coconut commonly called Asiatic palm weevil,
The female beetles lay eggs on wound at the crown while the larvae
Destroys the growing point.
Rynchophorus ferrugineus
74
This disease in banana causes the shortening of internodes of
Shoots or branches resulting in crowding of foliage
bunchy top
75
Which among the following is commonly called the Mango
Anthracnose Which shows symptoms of necrotic spotting of leaves
From which diseased tissues soon drop out, leaving a hole.
Colletotrichum gloeosporiodes
76
Which of the following management guidelines are being followed
In the concept of Integrated Pest Management?
all
77
Nematodes are sporadically distributed in the field as reflected on
The patchy occurrence of stunted plants. This observation is
Attributed to
all
78
Housefly and syrphidfly has this type of antennae
Aristate
79
Dragonflies and damselflies has this type of antennae
Setaceous
80
The genus of honeybees is
Apis
81
Agromyzid fly is an example of an insect that
Mines in the leaf tissues
82
One of these is not a predator of insect pest in rice
spidermites
83
Refers to the culture of silkworm and their uses
sericulture
84
The white grub commonly as known as “ulalo” is in what stage of
The insect ?
larvae
85
The most dominant group of animals on earth
insects
86
The following comprise the three theory body segments of an
Insect except
cepalothorax
87
The locomotory region of an insect body
thorax
88
The pest management that the male pupa are fed with
Chemosterilants and allowed to mate with normal wild females. This
Technique is called
sterile male technique
89
Which of the following methods primarily determines a
" biological
Property" of a plant virus?
positive reaction of certain hosts
90
A plant virus is considered unstable when
it infects only one host
91
Which of the following is true of non-persistent viruses?
its vectors lose the ability to transmit them after molting
92
In general, plants infected with persistent viruses show symptoms
Of
dwarfing/stunting and yellowing/necrosis
93
Who is considered the Father of Virology?
Beijerinck
94
An example of rod- shaped plant virus
tobacco mosaic
95
The early works on plant diseases due to viruses were based on
This simple facts
they are very small but very infectious
96
The plant viruses are considered as genetic parasites because they
take over the genetic machinery of their host cells for their Own reproduction
97
Aphids is the most important vector of plant viruses because of
all
98
The following are hypoplastic symptoms except
canker
99
Organisms that thrive on dead organic matter
Saprophyte
100
The ability of the parasite/pathogen to cause disease is called
pathogenicity
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26問 • 1年前問題一覧
1
The "common cause" of "damping-off" of vegetables in the Philippines
Phytopthora
2
It transmits the grassy and rugged stunt virus
Nilaparvata lugens
3
A "major" pest of EGGPLANT
Leucnodes orbinalis
4
Also known as ASIATIC "palm weevil", the adults bore through CABBAGE while the legless larvae feed on the soft bud of the COCONUT
Resulting on the destruction of the whole crown.
Rhynchophorus ferrugineus
5
SHEATH BLIGHT of RICE and corn is caused by
Rhizoctonia solani
6
Sweet potato is the host plant of Cylasformicarius commonly
Known as
Sweet potato weevil
7
This control method requires host specificity to be effective
biological
8
Good recommendation against golden kuhol
water management
9
The "structure" that facilitates efficient dispersal of aquatic weed
pericarp
10
The allelopathic substance produced by plants which are effective
Against another plant
koline
11
The weed control strategy which involves the use of mycoherbicide
biological
12
The term allelopathy came from the Greek words
allelon and pathos
13
The specific chemical intended for weed control is
herbicide
14
Exposure of weed seeds to low temperature to overcome
Dormancy
stratification
15
Which of the following is not an example of phanerogam?
goosegrass
16
A "grassy weed" capable of producing contractile roots and arrested
Shoot growth when subjected to extremely dry condition
large crab grass
17
This is the vegetative propagule that allows reproduction of Pistia
Stratiotes
off shoot
18
Some of the benefits that animals can derive from weeds is
hostplant to pathogens
19
This pesticide formulation usually contain 4 – 10 % active
Ingredient and are applied in dry form
dusts
20
In this pesticide formulation, the active ingredient is in dry solids
Or liquids which upon mixture with another substance will liberate
The toxic material in the form of gas,smoke or finely divided
Particles.
fumigants
21
In this pesticide formulation, the active ingredient is suspended in
A container under pressure
aerosols
22
In the preparation of the active materials in a pesticide, which
Among the following characteristics are being considered and
Altered to achieve stability of the chemical
all
23
In pesticide formulation, this material is used to facilitate creeping
Or spreading over a surface so that the area covered id increasingly
Greater
spreader
24
In pesticide formulation, this material can be a gas, liquid or solid
Substance used to dilute, propel, or suspend an active material
During application
carrier
25
Refers to the material in the pesticide mixture which would not
Prevent damage or destroy pests if used by itself
inert ingredient
26
The following, except one, are functions of a deflocculating agent
When added into a pesticide mixture
to increase per unit cost
27
This adhesive material increases the tenacity of substances in the
Pesticide mixture
sticker
28
Refers to the material in the pesticide mixture which improves the
Emulsifying,dispersing,spreading,wetting or other surface modifying
Properties of liquids
surfactant
29
The process by which an insect accommodates growth
Ecdysis
30
The part of the mouthparts without a palpus
Mandibles
31
The thrips to this order
Thysanoptera
32
Termites have this type of mouthparts
Chewing-sucking
33
Thysanopterans have this type of mouthparts
Piercing-sucking
34
Adult moths and butterflies have this type of mouthparts
Siphoning type
35
These are elongated, segmented structures of varying designs and
Are used for sensory purposes
Antennae
36
The characteristics mode of life of a species or its place in the
Environment, its relation to food, enemies, etc.
Niche
37
Insects belonging to this order are short-lived and die in 1-2 days
ephemeroptera
38
A mechanism of insect resistance that is described as refractory to
Guests
Antixenosis
39
This is an example of an egg parasitoid
Trichogramma chilonis
40
The time over which the pathogen fruiting body or lesion
Continues to produce new inoculum
Infectious period
41
Its quality, intensity, and duration affect the growth of both host
And the pathogen
Light
42
A group of pathogens that infect a set of plant varieties
Pathovar
43
Abscission layer is an example of
Historical defense structure
44
What is wax in plant leaves for?
passive defense
45
What is the molecular weight of the RNA of viroids?
110,00
46
A type of parasitoid that develop in or on non-parasitic host
primary parasitoid
47
An area that includes all organisms there in and their physical
Environment
ecosystem
48
The following are examples of cultural methods except
use of rotary weeder
49
Moldy grains that are discolored and carry-off odors suffer a
Reduction in
quality
50
The disease first reported to be caused by mycoplasma-like
Organisms in Japan
aster yellows
51
One of the first plant diseases studied in the Philippines
coffee rust
52
The cause of coconut bud rot is
Phytophthora palmivora
53
Corn downy mildew disease was completely controlled in 1978 by
Chemical seed treatment
54
A "harmful alteration" of the normal physiological and biochemical
Development of a plant.
disease
55
A symptom characterized by a sharply defined variegated pattern
mosaic
56
The structure of the pathogen that are found associated with the
Infection host
signs
57
A kind of symptoms involving the death of protoplasts, cells, or
Tissues
necrotic
58
This weed is toxic to animals because of the diarrhea it can cause
When ingested
Chromolaena odorata
59
Water lettuce is considered an “evergreen” or a perennial weed
Reproducing by this vegetative propagule
off shoot
60
Seed dispersal through water runoff is common among weeds
Mainly because
seeds are light weight and possess film enabling them to float
61
In weeds-crop association, allelophaty causes
the weeds to secrete substances that may stimulate or retard The growth of the associated crop
62
This grass was initially introduced to Southeast Asia as a turf grass
But then grow more luxuriantly as a weed
Cynodon dactylon
63
This is considered the most competitive stage of the weed plant
seedling stage
64
Which among the following weeds is botha monocot and a
Broadleaf?
Monochoria vaginalis
65
Refers to the measure of the adaptive poterntial of a weed enabling
It to survive in an environment continuously disturbed by man is
persistence
66
The lifecycle classification of a weed that germinates, grows
Vegetatively, produce seeds and live year to year
perennial weed
67
The weeds found in temperate areas differ from those found in the
Tropics mainly because of
the difference in climatic Conditions
68
A Biological control agent is said to be successful if
all
69
he following are major weeds in lowland rice. Which among them
Is not an annual grass?
Cyperus iria
70
The following are common major weeds in vegetable crops. Which
Among them is not an annual broadleaf?
Cyperus rotundus
71
Dysdercus cingulatus is an insect pest of cotton which causes the
Cotton bolls to be deformed and fibers discoloured by nymphs and
Adults. What is the common name of this pest?
cotton stainer
72
This mango fruitfly causes brown punctures on ripe fruits with
Eggs or maggots inside. The infested mango fruits will eventually
Rot.
Bactrocera dorsalis
73
In this insect pest of coconut commonly called Asiatic palm weevil,
The female beetles lay eggs on wound at the crown while the larvae
Destroys the growing point.
Rynchophorus ferrugineus
74
This disease in banana causes the shortening of internodes of
Shoots or branches resulting in crowding of foliage
bunchy top
75
Which among the following is commonly called the Mango
Anthracnose Which shows symptoms of necrotic spotting of leaves
From which diseased tissues soon drop out, leaving a hole.
Colletotrichum gloeosporiodes
76
Which of the following management guidelines are being followed
In the concept of Integrated Pest Management?
all
77
Nematodes are sporadically distributed in the field as reflected on
The patchy occurrence of stunted plants. This observation is
Attributed to
all
78
Housefly and syrphidfly has this type of antennae
Aristate
79
Dragonflies and damselflies has this type of antennae
Setaceous
80
The genus of honeybees is
Apis
81
Agromyzid fly is an example of an insect that
Mines in the leaf tissues
82
One of these is not a predator of insect pest in rice
spidermites
83
Refers to the culture of silkworm and their uses
sericulture
84
The white grub commonly as known as “ulalo” is in what stage of
The insect ?
larvae
85
The most dominant group of animals on earth
insects
86
The following comprise the three theory body segments of an
Insect except
cepalothorax
87
The locomotory region of an insect body
thorax
88
The pest management that the male pupa are fed with
Chemosterilants and allowed to mate with normal wild females. This
Technique is called
sterile male technique
89
Which of the following methods primarily determines a
" biological
Property" of a plant virus?
positive reaction of certain hosts
90
A plant virus is considered unstable when
it infects only one host
91
Which of the following is true of non-persistent viruses?
its vectors lose the ability to transmit them after molting
92
In general, plants infected with persistent viruses show symptoms
Of
dwarfing/stunting and yellowing/necrosis
93
Who is considered the Father of Virology?
Beijerinck
94
An example of rod- shaped plant virus
tobacco mosaic
95
The early works on plant diseases due to viruses were based on
This simple facts
they are very small but very infectious
96
The plant viruses are considered as genetic parasites because they
take over the genetic machinery of their host cells for their Own reproduction
97
Aphids is the most important vector of plant viruses because of
all
98
The following are hypoplastic symptoms except
canker
99
Organisms that thrive on dead organic matter
Saprophyte
100
The ability of the parasite/pathogen to cause disease is called
pathogenicity