OP Questions

Insects that undergo complete metamorphosis have which four stages in their life cycle?

A. Egg, larva, nymph, adult

B. Egg, nymph, pupa, adult

C. Egg, larva, pupa, adult

D. Egg, nymph, adult, pupa

C. Egg, larva, pupa, adult

What is the function of spiracles in insects?

A. Reproduction

B. Digestion

C. Sensory perception

D. Respiration

D. Respiration

Which life stage of sawflies is typically the most damaging to plants?

A. Larva

B. Pupa

C. Egg

D. Adult

A. Larva

In winged forms of insects, which part of an insect's body are the wings attached?

A. Head

B. Antennae

C. Abdomen

D. Thorax

D. Thorax

Which insects are known for producing honeydew, a sugary substance that attracts ants?

A. Aphids

B. Beetles

C. Flies

D. Grasshoppers

A. Aphids

Which of the following insects is known for having chewing mouthparts?

A. Grasshoppers

B. Mosquitoes

C. Aphids

D. Bedbugs

A. Grasshoppers

What is the process of an insect's shedding its exoskeleton?

A. Digestion

B. Molting

C. Sensory perception

D. Respiration

B. Molting

What type of mouthparts do aphids have?

A. Piercing-sucking

B. Rasping-sucking

C. Chewing

D. Sponging

A. Piercing-sucking

Which of the following insects undergoes simple metamorphosis?

A. Flies

B. Beetles

C. Butterflies

D. Grasshoppers

D. Grasshoppers

Which insect group is known for having a complete metamorphosis with a larval stage called a grub or wormlike larvae?

A. Beetles

B. True bugs

C. Aphids

D. Grasshoppers

A. Beetles

Which type of metamorphosis involves a pupal stage?

A. Incomplete metamorphosis

B. Gradual metamorphosis

C. Complete metamorphosis

D. Direct development

C. Complete metamorphosis

What is the primary function of the insect's antennae?

A. Respiration

B. Sensory perception

C. Digestion

D. Reproduction

B. Sensory Perception

What characteristic distinguishes arachnids from insects?

A. Six legs

B. Antennae

C. Eight legs

C. Eight Legs

Which of the following is NOT a stage in the life cycle of an insect with complete metamorphosis?

A. Pupa

B. Egg

C. Nymph

D. Larva

A. Pupa

What is a key principle of Integrated Pest Management (IPM)?

A. Using multiple strategies to manage pest populations

B. Ignoring beneficial insects

C. Applying broad-spectrum insecticides only

D. Relying solely on chemical control

A. Using multiple strategies to manage pest populations

What environmental factor significantly affects insect activity and development?

A. Temperature

B. Humidity

C. Soil pH

D. Wind speed

A. Temperature

Which type of damage do Leafminers cause by internal feeding affect plant tissues?

A. Mining damage

B. Gall formation

C. Chewing damage

D. Piercing-sucking damage

A. Mining Damage

Which of the following is an example of a microbial insecticide?

A. Nicotine

B. Bt - Bacillus thuringiensis

C. Pyrethrum

B. Bt - Bacillus thuringiensis

What should be done before applying insecticides to manage pests?

A. Correctly identify the pest and understand its life cycle

B. Ignore beneficial insects

C. Only consider chemical control

D. Apply insecticides immediately

A. Correctly identify the pest and understand its life cycle

What type of insecticide is absorbed by plant roots or foliage and then translocated throughout the plant?

A. Contact poison

B. Residual insecticide

C. Stomach poison

D. Systemic insecticide

D. Systemic Insecticide

Which type of insecticide must directly contact the insect to be effective?

A. Botanical organic insecticides

B. Synthetic organic insecticides

C. Inorganic insecticides

D. Microbial insecticides

C. Inorganic Insecticides

Which category of beneficial insects includes those that attack and eat prey organisms?

A. Decomposers

B. Predators

B. Predators

Which type of insect is most affected by systemic insecticides?

A. Chewing insects

B. Sponging insects

C. Piercing-sucking insects

D. Biting insects

C. Piercing-sucking insects

Insecticides that disrupt the normal growth patterns are considered which of the following:

A. Insect growth regulators (IGRs)

B. Contact poisons

C. Systemic insecticides

D. Botanical organic insecticides

A. Insect growth regulators (IGRs)

What is the most effective way to determine the presence of an insect infestation?

A. Waiting for visible damage

B. Guessing based on past experiences

C. Applying insecticides preemptively

D. Regular monitoring and recording observations

D. Regular monitoring and recording observations

What type of damage do insects with chewing mouthparts typically cause?

A. Galls on stems

B. Leaf discoloration

C. Curled leaves

D. Notched or ragged leaf edges

D. Notched or ragged leaf edges

What three factors must be present in the "disease triangle"?

A. Pathogen, environment, light

B. Pathogen, water, soil nutrients

C. Host, pathogen, water

D. Host, pathogen, environment

D. Host, pathogen, environment

What is the typical reproduction method for fungi?

A. Spores

B. Mating

C. Budding

D. Seeds

A. Spores

What role do vectors play in plant disease?

A. Preventing plant diseases

B. Directly causing the plant disease

C. Spreading pathogens between plants

D. Strengthening plant immunity

C. Spreading pathogens between plants

What are the three stages of disease development?

A. Inoculation, Penetration, and Infection

B. Fungi, Bacteria, and Virus

C. Nematodes, Fungi, and Mycoplasmalike organisms

D. Necrosis, Wilt, and Chlorosis

A. Inoculation, Penetration, and Infection

Which disease is characterized by the actual death of plant parts or the entire plant?

A. Wilts

B. Chlorosis

C. Galls

D. Necrosis

D. Necrosis

What is chlorosis in plants?

A. Overdevelopment of tissue

B. Wilting of stems

C. Necrosis of leaves

D. Discoloration due to lack of chlorophyll

D. Discoloration due to lack of chlorophyll

Which of the following diseases is caused by a virus?

A. Fusarium Root Rot

B. Powdery Mildew

C. Potato Leafroll

D. Fire Blight

C. Potato Leafroll

Which disease is caused by a bacterium?

A. Verticillium Wilt

B. Barley Yellow Dwarf

C. Fire Blight

D. Powdery Scab

C. Fire Blight

Which of the following is the largest group of plant pathogens?

A. Viruses

B. Bacteria

C. Nematodes

D. Fungi

D. Fungi

Which of the following is an abiotic cause of plant disease?

A. Bacteria

B. Nematodes

C. Temperature extremes

D. Fungi

C. Temperature Extremes

What characteristic do all plant parasitic nematodes share?

A. Living above ground

B. Ability to photosynthesize

C. Possessing a stylet to puncture plant cells

C. Possessing a stylet to puncture plant cells

Which of the following pathogens require a living host to survive and spread through insects?

A. Fungi

B. Mycoplasmalike organisms (MLOs)

C. Parasitic nematodes

B. Mycoplasmalike organisms (MLOs)

How are bacterial diseases typically spread among plants?

A. Water, insects, and human activity

B. Soil

C. Wind

A. Water, insects, and human activity

What is the primary cause of plant diseases?

A. Over-fertilization

B. Pathogens

C. Lack of sunlight

D. High levels of oxygen

B. Pathogens

What is the best practice to prevent disease during the storage of harvested crops?

a. Crop rotation

b. Proper storage conditions

c. Field sanitation

d. Planting resistant varieties

b. Proper storage conditions

What is the main objective of crop rotation in disease management?

a. To increase economic loss

b. To control plant pathogens

c. To increase root diseases

d. To increase crop yield

b. To control plant pathogens

What is the primary goal of plant disease management?

a. Eradicate plant diseases

b. Increase the presence of beneficial insects

c. Keep disease damage to a manageable level

c. Keep disease damage to a manageable level

What is the primary role of systemic fungicides?

a. To enhance plant growth

b. To kill weeds

c. To protect the crop from insects

d. To stop or kill the fungal pathogen

d. To stop or kill the fungal pathogen

What is the purpose of using disease-resistant varieties in plant disease management?

a. To eradicate pathogens

b. To increase the pathogen population

c. To reduce the severity and impact of diseases

c. To reduce the severity and impact of diseases

What type of pesticide is most effective against fungal pathogens?

a. Herbicides

b. Nematicides

c. Insecticides

d. Fungicides

d. Fungicides

Which component is not part of the disease triangle?

a. Soil

b. Pathogen

c. Environment

d. Host

a. Soil

Which factor does not favor the development of plant diseases?

a. High humidity

b. Proper plant nutrition

c. Heavy dew

d. Waterlogged soil

b. Proper plant nutrition

Which of the following is not a management principle for plant disease control

a. Avoidance

b. Pollination

c. Exclusion

d. Protection

b. Pollination

Which pesticide is used primarily for nematode control?

a. Fungicide

b. Nematicide

c. Herbicide

d. Bactericide

b. Nematicide

Which practice involves removing plant debris to reduce viable plant pathogens?

a. Field sanitation

b. Controlling vectors

c. Using chemical controls

d. Crop rotation

a. Field sanitation

Which principle involves planting crops in a location where the pathogen is rare or absent?

a. Therapy

b. Avoidance

c. Exclusion

d. Eradication

b. Avoidance

Which type of fungicide must be applied before the fungi infect the host plant?

a. Protectant fungicides

b. Nematicides

c. Bactericides

d. Systemic fungicides

a. Protectant fungicides

Which method is an indirect way of controlling viruses and the MLOs?

A. Chemical Control

B. Crop rotation

C. Using resistant varieties

D. Controlling vectors

D. Controlling Vectors

Biennials complete their life cycle in:

a. Less than one year

b. Two years

c. One year

d. Three years

b. Two years

Creeping perennials are difficult to control because:

a. They reproduce by seeds only

b. They grow very slowly

c. They have weak taproots

d. They have rhizomes and stolons

d. They have rhizomes and stolons

Monocots are characterized by:

a. Parallel veins in the leaves

b. Broad leaves

c. Two seed leaves

d. Coarse root system

a. Parallel veins in the leaves

Perennials are characterized by:

a. Completing their life cycle in one year

b. Completing their life cycle in two years

c. Living more than two years and reproducing by seed and/or vegetatively

c. Living more than two years and reproducing by seed and/or vegetatively

What defines a weed?

a. Any non-native plant

b. Any plant that is out of place and not valued where it is growing

c. Any plant growing in the wild

d. Any plant that grows in gardens

b. Any plant that is out of place and not valued where it is growing

Which characteristic is NOT associated with dicots?

a. Flower parts in multiples of three

b. Broad leaves

c. Coarse root system

d. Netlike veins in the leaves

d. Netlike veins in the leaves

Which growth stage is MOST vulnerable to herbicide application?

a. Vegetative

b. Seedling

c. Flowering

d. Mature

b. Seedling

Which life cycle is characterized by a plant completing its life cycle in one year or less?

a. Perennial

b. Biennial

c. Annual

c. Annual

Which of the following is NOT a method by which weed seeds spread?

a. Direct sunlight

b. Wind

c. Water

d. Fire

a. Direct sunlight

Which of the following is NOT a source of weeds?

a. Plants introduced from other countries

b. Plants that escaped intentional plantings

c. Native plants that have become weeds

d. Plants that naturally evolved alongside crops

d. Plants that naturally evolved alongside crops

Which of the following is NOT a way weeds negatively affect agriculture?

a. Causing crop yield and quality losses

b. Competing for water, light, and nutrients

c. Increasing aesthetic value

d. Hosting crop diseases

c. Increasing aesthetic value

Which weed can produce the most seeds per plant?

a. Common Purslane

b. Hairy Nightshade

c. Redroot Pigweed

d. Kochia

c. Redroot Pigweed

Which weed is known for substantially increasing fire cycles?

a. Scotch Thistle

b. Foxtail Barley

c. Downy Brome

d. Poison Ivy

c. Downy Brome

Which weed's seeds can remain viable in the soil for up to 40 years?

a. Redroot Pigweed

b. Kochia

c. Hairy Nightshade

d. Common Purslane

d. Common Purslane

Which herbicide mode of action disrupts hormone balance and protein synthesis in plants?

A. Amino acid synthesis inhibitors 

B. Growth regulators 

C. Photosynthesis inhibitors

D. Lipid inhibitors 

B. Growth regulators 

What factor is crucial for the effectiveness of contact herbicides?

a. Volatilization

b. Plant contact

c. Spray drift

b. Plant contact

What is a common method of biological weed control?

a. Animals, insects and pathogens

b. Herbicides

c. Mulching

d. Tillage

a. Animals, insects and pathogens

What is the function of a surfactant when added to an herbicide mixture?

a. To neutralize the herbicide's toxicity

b. To prevent herbicide from sticking to leaves

c. To decrease the herbicide's effectiveness

d. To improve the herbicide's absorption by the plant

d. To improve the herbicide's absorption by the plant

What is the primary sugar transport system in plants that moves herbicides?

a. Xylem

b. Phloem

c. Stomata

d. Cuticle

b. Phloem

What type of herbicide is applied directly to the foliage of weeds?

a. Residual herbicide

b. Post-emergence herbicide

c. Soil-applied herbicide

d. Pre-emergence herbicide

b. Post-emergence herbicide

Which herbicide application method treats a strip or band, either over or between crop rows?

a. Band

b. Broadcast

c. Directed spray

d. Spot treatment

a. Band

Which herbicide type moves throughout the plant to kill it?

a. Pre-emergence herbicide

b. Systemic herbicide

c. Contact herbicide

b. Systemic herbicide

Which method of weed control involves hand pulling and tillage?

a. Mechanical

b. Biological

c. Cultural

d. Chemical

a. Mechanical

Which of the following conditions would enhance herbicide uptake in plants?

a. High temperature

b. Low soil moisture

c. Low humidity

d. High humidity

d. High humidity

Which of the following is an example of a cultural weed control method?

a. Introducing insects

b. Hand pulling weeds

c. Crop rotation

d. Using herbicides

c. Crop rotation

Which type of herbicide is most likely to leach through sandy soils?

a. Contact herbicide

b. Soil-applied herbicide

c. Foliar-applied herbicide

b. Soil-applied herbicide

Which type of herbicide prevents the formation of chlorophyll in plants?

a. Cell membrane disrupters

b. Growth regulators

c. Pigment inhibitors

d. Amino acid synthesis inhibitors

c. Pigment inhibitors

Which weed control method uses the application of mulch or fabric to prevent weed growth?

a. Cultural control

b. Biological control

c. Mechanical control

d. Chemical control

c. Mechanical control