Insects Flashcards
(220 cards)
1
Q
Which phylum do insects belong to?
A
Phylum Arthropoda
2
Q
What Phylum, Class, and Order does the spider belong to?
A
Phylum Arthropoda
Class Arachnida
Order Araneae
3
Q
Mites are six-legged arthropods. [T/F]
A
False. Mites are arthropods that possess eight legs. Therefore, they are eight-legged.
4
Q
What are the two classes of arthropods that are considered economically important?
A
Class Insecta and Class Acari
5
Q
The following are the distinguishing characteristics of arthropods, except:
a) A nervous system
b) An open circulatory system with hemolymph
c) A hard exoskeleton made of glucans
d) Appendages on at least one segment
A
C.
Arthropods are characterized by their hard exoskeleton made of chitin.
6
Q
In which subclass of the Class Arachnida do the mites belong to?
A
Subclass Acari
7
Q
The study of mites and ticks.
A
Acarology
8
Q
It is the scientific study of insects, including all the phases of their lives and understanding their role in nature.
A
Entomology
9
Q
The term “Entomology” is derived from the word _____ which means ‘insect’, and ______ which means ‘study of’.
A
Entomon; Logio
10
Q
1) Insects have three body parts (head, cephalothorax, and abdomen)
2) Insects have 6 pairs of legs.
a) Only statement 1 is false
b) Only statement 2 is false
c) Both statements are false
d) Both statements are not false
A
c) Both statements are false.
Insects have three body pairs (head, thorax, and abdomen.
Insects have 6 legs / 3 pairs of legs.
11
Q
The number of visible segments of the abdomen of an insect.
A
5 - 11 visible segments
12
Q
1) Not all adult insects have wings
2) Not all adult insects have a pair of antennae
a) Only statement 1 is true
b) Only statement 2 is true
c) Both statements are true
d) Both statements are not true
A
a) Only statement 1 is true.
All adult insects have a pair of antennae.
13
Q
The reproductive appendages are located at what area of the abdomen?
a) Middle
b) Top
c) Tip
d) Under
A
c) Tip.
The reproductive appendages of an insect are located at the tip of the abdomen.
14
Q
This provides the insect with protection, muscle attachment, framework, and leverage for locomotion.
A
Exoskeleton
15
Q
The exoskeletons are made up of ________.
A
Chitin
16
Q
This is the process of hardening of the insect’s cuticle.
A
Sclerotization
17
Q
This body part of the insect bears the eyes, antennae, and mouthparts.
A
Insect Head
18
Q
1) The compound eyes are located dorsolaterally on the head.
2) The compound eye is made up of an array of visual units called ommatidia.
a) Only statement 1 is true.
b) Only statement 2 is true.
c) Both statements are true.
d) Both statements are false.
A
Both statements are true
19
Q
In an insect, only the compound eyes are capable of detecting motion and UV light. [T/F]
A
False.
Ocelli are simple eyes that can detect motion and light (including UV light) but does not transmit images.
20
Q
The ocelli are capable of transmitting images, not just detection of light and motion. [T/F]
A
False. The ocelli do not transmit images, as they only detect motion and light through their photoreceptors.
21
Q
Sensory organ of an insect that is responsible for the sense of touch, smell, and hearing.
A
Antennae
22
Q
The three basic parts of the antennae.
A
Scape, Pedicel, and Flagellum.
23
Q
The basal segment of the antennae that articulates with the head capsule.
A
Scape
24
Q
The second segment of the antennae.
A
Pedicel
25
All of the remaining "segments" of the antennae.
Flagellum
26
The singular term for flagellum.
Flagellomeres
27
The type of antennae in which it is long, thin, and made of equally sized and shaped segments.
Filiform
28
The type of antennae in which it is pouch-like with one lateral bristle.
Aristate
29
A type of antennae that is **beaded**, with round segments that make the antenna look like **a string of beads**. It is exhibited in beetles.
Moniliform
30
A type of antennae that is **gradually clubbed**, where segments **become wider toward the tip of the antennae**. It is exhibited in butterflies, moths, and beetles.
Clavate
31
In this type of antennae, the segments towards the end are flattened and plate-like, which gives them the appearance of a fan.
Lamellate
32
The type of antennae that is **comb-like**. The **segments are longer on one side**, which gives it the appearance of a comb. This type of antennae is found in **sawflies** and beetles.
Pectinate.
33
This type of antennae is similar to the filiform antennae, but it terminal segments are pointed and slender, which gives it the appearance of a style. It is found in Brachycerous flies.
Stylate
34
The type of antennae is characterized by their segments that each have a number of fine thread-like branches. The long hairs of this antennae gives it the appearance of a feather. It is found in flies, and also in mosquitoes.
Plumose
35
This antennae is similar to pectinate and lamellate, but the segments are thinner and flattener. This is found in beetles, wasps, and moths.
Flabellate
36
The saw-toothed antennae. The segments of this type of antennae are angled on one side, giving it the appearance of a saw edge.
Serrate
37
In this type of antennae, there is an **abrupt bend** or elbow part of the way along the antenna. This type of antennae is found in **ants**.
Geniculate
38
Type of antennae where it is bristle-shaped and are thinner and longer in their ends. Found in mayflies, dragonflies, and damselflies.
Setaceous
39
Beetle: Coleoptera
Flies: _____________
Diptera
40
Sawflies: Hymenoptera
Moths: ___________
Lepidoptera
41
Damselflies: __________
Mayflies: Ephemeroptera
Damselflies: Odonata
42
The two basic types of mouthparts of insects.
Mandibulate and Haustellate
43
the Mandibulate mouthparts are also known as the ________ type.
Chewing
44
Which of the following is NOT a part of the Mandibulate mouthparts?
a) Labrum
b) Mandible
c) Hypopharynx
d) Stylet
d) Stylet
The five parts of the mandibulate mouthparts are: Labrum, Mandible, Maxillae, Labium, and Hypopharynx.
45
In the mandibulate type, the mandibles are found behind the _______.
Labrum.
46
Heavily sclerotized and unsegmented jaws.
Mandible
47
The labium covers the upper part of the mouthpart. [T/F]
False.
The labium covers the **lower** part of the mouthpart.
48
It is the broad, flaplike lobe found below the clypeus on the head's anterior side. It also closes the front of the mouthparts.
Labrum.
49
Labrum: Upper Lip
Hypopharynx: Tongue-like
Labium: __________-
Labium: Lower Lip
50
The part of the mouth that bear a feller like organ called the palp. It is located behind the mandibles.
Maxillae
51
The part of the mandibulate mouthpart that aids in swallowing.
Hypopharynx
52
It is the type of mouthparts where it has no mandibles and does not chew their food.
Haustellate / sucking type
53
The haustellate mouthpart has an elongated proboscis or beak that allows liquid food to be sucked. [T/F]
True
54
The primary function of the mandibulate mouthparts is to pierce or scrape on tissues. [T/F]
FALSE
The **haustellate** mouthpart can pierce or scrape on tissues.
55
What are the five variations of haustellate types?
1. Piercing-sucking
2. Sponging type
3. Siphoning type
4. Rasping-sucking
5. Chewing-lapping
56
The haustellate type of thrips is the sponging type, where they have a proboscis but are short and stout. [T/F]
False.
Rasping-sucking is the haustellate type that has a short and stout proboscis.
57
The haustellate type of houseflies. It is adapted for sucking up liquid or semiliquid food.
Sponging type
58
The haustellate type for extracting nectar from flowers using an elongated proboscis or tongue, which are the fused maxillae.
Siphoning type
59
This haustellate type have mandibles that are used for defense, carrying things, molding wax, and building nests. It also has elongated maxillae and labium.
Chewing-lapping
60
Haustellate type that have stylets that are needle-like.
Piercing-sucking
61
This is the body part of an insect where the appendages for locomotion are located.
Thorax
62
What are the 3 segments of the thorax?
Prothorax, Mesothorax, and Metathorax.
63
Which of the following is not a segment of the thorax?
a) Prothorax
b) Pterothorax
c) Mesothorax
d) Metathorax
b) Pterothorax
64
What is the term used when the mesothorax and metathorax are combined?
Pterothorax
65
Which of the following is not one of the leg's basic parts?
1) Coxa
2) Trochanter
3) Femur
4) Tibia
5) Tarsus
6) Chela
7) Pretarsus
Chela.
The leg's basic parts are coxa, trochanter, femur, tibia, tarsus, pretarsus.
66
Insects are the only arthropods that can fly. [T/F]
True
67
Give at least 3 types of insect legs.
Types of legs
- Running or Cursorial
- Digging or Fossorial
- Grasping or Raptorial
- Catching
- Pollen Collection
- Jumping or saltatorial
- Clinging
68
The other term for digging legs.
Fossorial
69
The other term for jumping legs.
Saltatorial
70
The other term for grasping.
Raptorial
71
What kind of legs does the mole cricket have?
Digging or Fossorial
72
What kind of legs does the cockroach have?
Running or Cursorial
73
What kind of legs does the mantis have?
Raptorial / Grasping
74
What kind of legs do honeybees have?
Pollen Collection
75
What kind of legs does the head louse have?
Clinging
76
At which segment of the thorax are the wings of the insect located?
Second and third thoracic segment / Mesothorax and Metathorax
77
It is the term used for the joining together of two pairs of wings.
Wing coupling
78
It is the type of wing characterized by hard, sclerotized front wings that serve as protective covers for membranous hind wings. This is found in beetles.
Elytra
79
Type of wings characterized by front wings that are leathery or parchment-like at the base, and membranous near the tip. This is found in hemipterans.
Hemelytra
80
This type of wings is characterized by front wings that are completely leathery or parchment-like in texture.
Tegmina
81
Type of wings that have small, club-like hind wings that serve as gyroscopic stabilizers during flight.
Halteres
82
Scaly wings are front and hind wings covered with flattened setae (scales). It is found in insects used Order ____________.
Order Lepidoptera
83
Type of wings with front and hind wings clothed with setae.
Hairy wings
84
Type of wings that have slender front and hind wings with long fringes of hair.
Fringed wings
85
This is the type of wing coupling with **tiny hooks on the hind wings**, which engaged the forewing on the sclerotized fold along the posterior margin. This is found in Hymenopterans and Trichopterans.
Amplexiform
86
Type of wing coupling with an enlarged lobe-like area near the basal posterior margin. The coastal margin of the front wing possesses a small lobe at its base called fibula, which rests on the surface of the hind wings.
Jugal wing coupling
87
What are the 3 types of wing coupling?
1. Amplexiform wing coupling
2. Frenulo-retinacular wing coupling
3. Jugal wing coupling
88
The abdomen has 10 - 11 segments, but primitively has 2 segments. [T/F]
True
89
The 8th and 9th segments of the abdomen are composed of the insect's genitalia. [T/F]
True
90
The term for the development of eggs after it has been laid.
Oviparity development
91
It is when the egg develops inside the body of the female and comes out as a live young.
Viviparity / Viviparous
92
Two or more embryos develop from a single egg.
Polyembryony
93
An asexual reproduction where the egg can grow without being fertilized.
Parthenogenetic / Parthenogenesis
94
It is the change in structure and form of insects as they develop.
Metamorphosis
95
The term used when there are no external changes between molts of the insects.
Ametabolous
96
Insects that are ______ undergo incomplete changes. The stages include the egg, naiad, and adult.
Hemimetabolous
97
___________ insects have aquatic immatures, while the adults are terrestrial.
Hemimetabolous
98
Give an example of a hemimetabolous insect.
Dragonfly, Mayfly, Damselfly, Stonefly
99
The immatures / nymphs of the ________ insects are strikingly similar to the adults. Example: Grasshopper.
Paurometabolous
100
It is called the complete metamorphosis.
Holometabolous
101
_______________ is called the complete metamorphosis due to the presence of the four distinct stages: the egg, larva, pupa, and adult.
Holometabolous
102
True bugs: Paurometabolous
Bees: _______________
Butterfly: ______________
Flies: ______________
Holometabolous
Holometabolous
Holometabolous
103
Insects are the dominant terrestrial animal life on Earth. [T/F]
True
104
What are the reasons why insects are dominant and successful?
- Structure (Exoskeleton and efficient nervous system)
- Flight (Evolution of flight)
- Small size
- High reproductive rate / fecundity
- Adaptability that is genetic, rather than behavioral.
105
The evolution of flight gives the insect increased opportunity for survival and dispersal to new habitats. [T/F]
True
106
The adaptability of insects are behavioral, rather than genetic. [T/F]
FALSE
The adaptability of insects is genetic, rather than behavioral.
107
Insects are dominant because of their massive numbers and ability to inhabit to virtually all terrestrial habitats, including places with extremely low temperatures. [T/F]
False. Insects do not inhabit the Arctic, Antarctic, and peaks of very high mountains.
108
Insects feed on all types of organic matter. [T/F]
True. There are insects that are:
- Phytophagous
- Predaceous
- Parasitic
- Saprophagous
109
Enumerate the role of insects.
Insects as:
- Herbivores
- Decomposers
- Predators and Parasitoids
- Parasite
- Prey
- Pollinators
110
About 99% of all insects are non-pest. [T/F]
True
111
Which of the following is not a reason why insects become pests?
1. Changes in cropping patterns eliminates and introduces plants.
2. Specimens of scientific studies
3. Displacement of organisms in one area to another because of utilization of land for planting
4. Change in human values and preferences.
2. Specimens of scientific studies.
112
Destructive pests deal direct damage to crops by being vectors of pathogens. [T/F]
False.
Indirect damage - vectors of pathogens
113
Insects injure cultivated crops indirectly by oviposition and feeding. [T/F]
False.
Direct damage - oviposition and feeding
114
Enumerate the types of feeding damage caused by insects.
1. Chewing type
2. Boring type
3. Sucking type
115
Boring type of feeding damage is where the insects inflict defoliation and feed on the fruits, stems, and roots. [T/F]
False.
Chewing type of feeding damage is where the insects inflict defoliation and feed on the fruits, stems, and roots.
Boring type is where insects damage crops by making holes / tunnels.
116
What type of feeding damage is made by caterpillars, beetles, grasshoppers, and leafminers?
Chewing type
117
The following are insects that damage the crops by sucking up liquid or sap, except:
a) Aphids
b) Mealybugs
c) Leafhoppers
d) Leaf miners
D. Leaf Miners
Leaf miners are defoliators.
118
The following insects deal damage to crops by making holes or tunnels, except:
A. Termites
B. Tomato Fruit worm
C. Caterpillars
D. Eggplant fruit and shoot borer
E. Asian Corn Borer
F. None of the above
C. Caterpillars
Caterpillars are defoliators.
119
What is the type of feeding damage when the signs are the following:
- yellowing
- wilting
- holes with frass/feces
Boring type
120
What is the type of feeding damage dealt by insects when the plant experiences stunted growth, fewer leaves, drying, and death?
Sucking type
121
Hemipterans excrete honeydew which favors growth of sooty mold that alter photosynthesis. [T/F]
False.
HOMOPTERANS excrete honeydew, which favors growth of sooty mold that alter photosynthesis.
122
Sucking type insects are have toxins in their saliva which can harm the plant, and are also capable of transmitting pathogens. [T/F]
True
123
It is defined as grouping together of individual objects by some system of relationship or association among them.
Classification
124
The science, theory, and practice of classifying organisms.
Taxonomy
125
This deals with how organisms are related to each other and attempt to describe the underlying reason or that relationship.
Systematics
126
A tool that is used to unlock the door to the identification of an unknown organism.
Key
127
Knowing the name of the insect pest is needed to formulate pest control recommendations. [T/F]
True
128
The name of an organism allows one to obtain information about the organism's life cycle, habits, natural enemies, reproduction, and even the control strategies of the insect. [T/F]
True
129
A fundamental unit of classification.
Species
130
It is considered as the smallest grouping scale of reproduction and the production of fertile offspring.
Species
131
What are the two groups of taxonomy?
Lumpers and Splitters
132
Taxonomy that puts together all related insects in one order.
Lumpers
133
Taxonomy that splits / separates orders into other specific orders.
Splitters
134
The Order Phthiraptera (Lice) belongs to what group of taxonomy?
Lumpers
135
The mantis was considered to belong under the Order Orthoptera but was then split into its own separate order. [T/F]
True
136
Apterygpota: __________
Pterygota: Presence of wings
Lack of wings
137
Exopterygota: ____________
Endopterygota: Internal winged forms
Exopterygota: External winged forms
138
Order under Apterygota that includes insects that are known for their swift movement, distinct feelers and cerci, and may cause extensive damage to household goods such as book bindings, cardboard and, other paper products.
Example: Silverfish
Order Zygentoma
139
Insects that belong to this order are winged with short lifespan. Their naiads are ecological indicators of good water quality. They also act as an important food source for fishes and other aquatic wildlife.
Example: Mayflies
Order Ephemeroptera
140
Insects that belong this order are characterized by their very big compound eyes. They are general feeders and predators of small insects such as mosquitoes. However, they are considered as pests by beekeepers.
Example: Dragonflies and Damselflies.
Order Odonata
141
The largest known insect is the fossil _________ *Meganeura monyi* which had a wingspan of approximately 30cm.
dragonfly
142
Insects that belong to this order are capable of camouflage / crypsis because they resemble leaves, grasses, and twigs. They have long, slender antennae and have mandibulate mouthparts. Their wings are often reduced or absent. Some species are defoliators of forest trees and cause economic losses.
Example: Walking stick, Leaf insects.
Order Phasmatodea
143
The order where grasshoppers and locusts belong.
Order Orthoptera
144
Insects under this order have cursorial and gressorial (walking) legs. They are commonly known for residing in human dwellings throughout the world, despite having 99% of them living in the wild. They are nocturnal. They forage food and water and contaminate it with their smelly excreta. They are useful as research tools (insect physiology and toxicology).
Example: Cockroaches and Termites
Order Blattodea
145
Dead cockroaches and their feces are important sources of household ________ that become air-borne and provoke respiratory allergies in sensitive people.
Dander
146
This insect is generally considered as a highly beneficial insect. However, they are cannibalistic and may also feed on other beneficial insect. It is the only insect that can turn its head from side to side without moving the rest of its body. Its head is triangular and have well-developed compound eyes. It possesses raptorial forelegs, adapted for catching prey.
Mantis
147
The order of Mantis.
Order Mantodea
148
The European earwig *Forficula auricularia* causes economic losses in fruit and vegetable crops in the U.S.
What order does this pest belong to?
Order Dermaptera
149
Insects that belong to this order are permanent, obligate ectoparasites of birds and animals. They are wingless, blind, parasitic insects and highly host specific. They spread diseases in humans and domestic animals.
Order Phthiraptera
150
Order in which the *Thrips tabaci* belong to.
Order Thysanoptera
151
Order in which the true bugs belong to.
Order Hemiptera
152
Lacewings are predators of agricultural pests (aphids, whiteflies, and scale insects).
Antlion larvae live in soil and construct pitfall traps to snare their prey.
They are net-winged insects that have chewing mouthparts.
In what order do they belong to?
Order Neuroptera
153
Insects that belong to this order have wings called Elytra. Its larvae is called a grub. This order has the largest number of insect species.
Order Coleoptera
154
This order of insects are major pests of agricultural plants and stored products, including wood.
Order Coleoptera
155
Ladybird beetles (commonly known as ladybugs) are important biocontrol agents. What insects do they prey on?
Aphids and Scale insects
156
Insects that belong in this order are strong fliers. They have halteres, which are modified hindwings that function for balancing during flight. Some are predatory. Some are bloodsuckers. Some are well-known human disease transmitting agents. Some are crop pests.
Examples: Fruit flies, Leaf miners, Root maggots, house flies.
Order Diptera
157
Fleas have enlarged hind femur that is adapted for jumping. This separates them from lice, as the latter only have crawling legs. Fleas have haustellate mouthparts that act as siphon.
Unsa na order na-belong ang fleas? (gikapoy na ko pls forgive me)
Order Siphonaptera
158
Insects under this order are characterized by the presence of four membranous scaly wings. Some are nocturnal, some are diurnal (during the day).
The larvae are destructive to agricultural crops and forest trees, while adults are valued for their beauty.
Example: Moth, Butterfly, Skipper, Silkworm.
Order Lepidoptera
159
Butterflies: Clavate
Moths: Different types except Clavate
Skippers: ___________
Skippers: Clavate
160
Butterflies: wings held upwards
Skippers: wings held 45 degree angle
[T/F]
True
161
The order that, as a group, is considered to be the most beneficial group among insect groups.
Order Hymenoptera
162
Some species of the Order Hymenoptera are regarded as pests (sawflies, gall wasps, and some ants).
[T/F]
True
163
Most members of the Order Hymenoptera are extremely beneficial because they are either natural enemies of some pests or they serve as pollinators of flowering plants. [T/F]
True
164
What is the technical term used for the shed exoskeleton of insects or arthropods?
Exuviae
165
A cultural control that replaces a crop that is susceptible to a serious pest with another crop that is not susceptible, on a rotating basis.
Crop rotation
166
Refers to keeping the area clean of plants or materials that may harbor pests.
Sanitation
167
It is the provision of a pest insect's preferred food near the crop to be protected.
Trap cropping
168
Trap crops should be destroyed along with the pest. [T/F]
True
169
What is the trap crop to be used if the main crop is garlic and the pest are thrips?
Basil and marigold
170
Some plants have physical and chemical adaptations that allow them to repel, tolerate, or even kill pests. What is this referring to?
Host Resistance
171
Bagging of fruits is cultural control. [T/F]
False. Bagging of fruits is mechanical control
172
These are methods that directly remove / kill pests.
Mechanical / Physical control
173
It is the use of living organisms to suppress pest populations.
Biological control
174
What are the three categories of natural enemies of insect pests?
Predators, parasitoids, and pathogens.
175
Organisms that feed on insects.
Predators
176
_________ are insects with an immature stage that develops on or in a single insect host, and ultimately kills the host.
Parasitoids
177
Organisms that are often microscopic in size that can cause disease.
Pathogens
178
Insecticides that are formulated to kill, harm, repel, mitigate one or more species of insect.
Insecticide
179
The use of chemicals to kill pests or to inhabit their feeding, mating, or other essential behaviors.
Chemical control
180
Order: Hemiptera
They are grayish brown to charcoal black adults with broad and hard abdominal covering. The grayish-pink eggs are laid in clusters.
They can cause wilting or bugburn and deadhearts. Their main host is rice.
Identify the pest.
Rice Black Bug
181
It is the drying of the central tiller during the vegetative stage.
Deadhearts
182
Order: Hemiptera
Can destroy rice at any stage of the plant, from seed to maturity.
Symptoms: Deadhearts and whiteheads.
Identify the pest.
Rice Stem Borer
183
Order: Hemiptera
The nymphs and adults feed on the rice, especially during milking or dough stage. As a result, the panicles are smaller, deformed and grains are spotty.
Identify the pest.
Rice Bug
184
Order: Diptera
Damaging stage is the larva, which prefers to feed on young and newly transplanted rice plant. There is no cultural control for this pest, but small wasps can parasitize the eggs and the maggots of this pest.
Identify the pest.
Rice Whorl Maggot
185
Order: Orthoptera
These are commonly inhabiting in all rice environments, especially in rainfed rice areas. The adults are known to swarm and migrate during favorable conditions, and outbreaks could occur during drought.
Identify the pest.
Locusts
186
Order: Hemiptera
This pest sucks the sap of rice plants, creating white patches on the tillers.
It is also capable of spreading virus disease, especially **rice tungro**.
Identify the pest.
Green Leafhoppers (GLH)
187
Order: Hemiptera
Brown in color, high population of this pest can cause hopperburn.
Identify the pest.
Brown Planthopper
188
Hopperburn is the condition where leaves turn orange-yellow before becoming brown and dry. [T/F]
True
189
Order: Lepidoptera
Major pest of corn. Biocontrol agent for this pest includes the *Bacillus thuringiensis* subsp. Kurstaki, and other parasitoids. Use of moderately resistant varieties will be significant.
Identify the pest.
Asian Corn Borer
190
*Helicoverpa armigera*
Corn Earworm / Cotton Bollworm / Tomato Fruitworm
191
Order: Coleoptera
Larvae and adults of the beetle feed on the soft tissues of the youngest leaf in the throat of the coconut palm and affected leaves dry up.
Identify the pest.
Coconut Leaf Beetle
192
Order: Coleoptera
Adults damage palms by boring into the center of the crown, where they injure the young, growing tissues, and feed on the exuded sap.
Identify the pest.
Coconut Rhinoceros Beetle
[*Oryctes rhinoceros* (L)]
193
Order: Homoptera
Vector of Abaca Bunchy Top Virus
Identify the pest
Abaca / Banana Aphid
[*Pentalonia nigronervosa* (Coq)]
194
Order of Eggplant Fruit and Shoot Borer
Order: Lepidoptera
195
Scientific name of the Eggplant Fruit and Shoot Borer.
*Leuconoides orbonalis* Guene'e
196
Order: Homoptera
Direct feeding damage is due to the removal of sap from leaves, pods, seeds, and other aerial plant parts.
Biological control for this pest includes ladybird beetles.
Identify the pest.
Aphids
197
Scientific name of the Common Cutworm
*Spodoptera litura* (Fabricius)
198
Order: Coleoptera
Recommended management:
- Strict quarantine regulation to prevent widespread distribution.
- Management of the farm planted to sweet potato.
Identify the pest.
Sweetpotato weevil
199
Order: Acarina
Causes damage to plants by feeding on leaves and sometimes fruit. It forms a mass of webbing over leaves and fruit, making it harder for the plants to thrive.
Identify the pest.
Red Spider Mites
200
Order: Lepidoptera
A serious exotic insect pest that tunnels into the flesh of mangoes, making them unfit to eat. Found in mangoes in Southern Palawan in May-June 1987.
Killed on sight.
Identify the pest.
Mango Pulp Weevil
201
Order: Lepidoptera
Borer larvae were found on young tender leaves, shoots, and buds of jackfruit trees, leading to drying and dropping in.
Identify the pest.
Jackfruit Fruit Borer
202
Order: Diptera
Internal mining by the larvae, allowing pathogenic fungi to enter the leaf.
Identify the pest.
Leaf Miner
203
Scientific name of Flea Beetle.
*Psylloides balyi*
204
Order: Thysanoptera
Attacks the terminal bud and two or four true leaves.
The plant is damaged by reduced stand, retarding growth, killed buds, and delayed fruiting. One of its host is onion.
Identify the pest.
Thrips
205
Scientific name of thrips
*Thrips tabaci* (Lindeman)
206
Order: Lepidoptera
This pest only attacks Cruciferae plants. Complete removal of foliar tissue except for the leaf veins.
One of cultural management is companion planting of cabbage + tomato + garlic.
Identify the pest.
Diamondback Moth
207
Order: Diptera
Rotting and premature dropping of fruits. Small discolored patches on fruits.
Identify the pest.
Melon fly / Fruit fly
208
Order: Lepidoptera
A serious pest that infects cucumbers and bitter gourds.
Symptom: Skeletonization (lace-like patches of intact small leaf veins)
Cucumber Moth
209
Scientific name of the Squash / Pumpkin Beetle
*Aulocophora similis* (Olivier)
210
Order: Hemiptera
Can seriously injure plants by sucking juices from them, causing leaves to yellow, shrivel, and drop prematurely.
Whitefly
211
Vector of Crazy bitter gourd virus and Papaya ring spot virus.
Aphid
*Aphis gossypi* Glover
212
Vector of Squash leaf curl
Whitefly
*Bemisia tabaci* (Gennadius)
213
Vector of Taro Feathery Mosaic virus
Gabi Planthoppers
*Tarophagus proserfina*
214
Scientific name for Green leafhopper
*Nepothettix virenscens*
215
Vector of Abaca Bunchy Top Virus
Abaca aphid
[*Pentalonia nigronervosa*]
216
Vector of Bean Mosaic
Bean aphid
[*Aphis craccivora* Koch]
217
Vector of rice grassy stunt virus
Brown planthopper
[*Nilaparvata lugens*]
218
Vector of Tomato Spotted Wilt
Thrips
[*Thrips tabaci* Lindeman]
219
The following are scientific name for an aphid, except:
a) *Aphis craccivora* Koch - Bean Aphid
b) *Aphis gossypii* Glover - Melon aphid
c) *Myzus persicae* Sulzer - Peach / Tobacco aphid
d) *Pentalonia nigronervosa* - Abaca Aphid
e) None of the above
None of the above
220
GOOD LUCK SA EXAM!!!
May the force be with you
