7 | 暗記メーカー

7

100問 • 1年前

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Refers to the sequence of events that gives rise to disease

Pathogenesis

A principle of plant disease control that involves the prevention of Infection by puttinga barrier (mechanical or chemical) between the Pathogen and the suscept

protection

A pinciple of plant disease control which are intended to eliminate Inhibit or kill the pathogens tat become established within the plant Or in area

eradication

Rouging virus-infected plants in the field falls under what principle Of plant disease control?

eradication

Control of disease through crop rotation falls under what method Of plant disease control?

cultural method

Irradiation of fruits with gamma rays falls under what method of Disease control?

physical method

Soil fumigation to control Moko disease of banana falls under what Method of control?

chemical

In an herbarium, the complete plant parts of a weed are also Being collected because

they will facilitate easier identification of weeds

Imperate cylindrical has this as the primary propagule for Reproduction

rhizome

Weeds that live annually can be present in the field every season Despite of good control measures because

enormous amount of their seeds are added into the soil annually

The best time to collect weeds for herbarium is during

late afternoon

This refers to the number of weeds in a given unit area

weed density

Which among the following weeds can be easily spread by wind Alone?

Tridax procumbens

More than 95% of the weeds that infest crops come from

the soil

This cultural practice can control weeds in a transplanted irrigated Rice

all

Factor that determine the distribution and abundance of the weed

all

A plant is considered a weed when

all

Trichoderma spp. Is a microbial agent against the following plant Pathogens,except one, through competition for substrates and Hyperparasitism

Pseudomonas spp.

Diadegma species are larval parasitoids belonging to the family of Ichneumonid wasps which prefer to lay eggs on the second and Third instar of this host

diamond moth

The spores of this microbial agent enter through the body Openings or adhere to the cuticle of the nematode, germinate and Penetrate making it strongly parasitic on all stages of development Of common plant parasitic nematodes, especially the eggs.

Paeclomyces lilacinus

Which among the following is a disadvantage of using cultural Control against pest and diseases?

do not provide effective control to some pests

Refers to the increase of the amount of substance within a single Organism

bioaccumulation

Refers to the increase of the amount of substance across trophic Levels

biomagnification

Which among the following substances cannot bioaccumulate?

those with bigger molecules

Which of the following describes bioaccumulation?

all

Which of the following substances can biomagnify ?

all

Rachel Carson published this book in 1962 which tackled the Environmental impacts of agriculture particularly the concentration Of the popular pesticide DDT in tissues and how it can get passed On in the food chain

Silent Spring

The process of hardening of the insect integument is called

Sclerotization

The appendages not found in the thorax are

cerci

The saltatorial type of insect leg is modified for

jumping

The type of wing in which the 2/3 or Va of the forewing is Parchment-like while the remaining distal part is membranous

hemyletron

The thickened highly sclerotized, leathery or horny forewings of Coleoptera and Dermaptera

elytra

Refers to the change in the form of the insect during Postembryonic development

metamorphosis

Refers to the fundamental unit of classification. This is the smallest Group capable of reproduction and production of fertile offsprings

species

All are morphological characteristics used to distinguish insect Orders except

body wall

The insect order of lacewings

neuroptera

The insect order of earwigs

dermaptera

The biological properties of a virus are reflected through infectivity Assays in which

only infectious particles cause infections

From the site of inoculation, plant viruses spread through the plant In a slow cell-to-cell spread through

plasmodesmata

The survival and spread of certain plant viruses depend on

all

Which among the following viruses will most likely to survive?

a virus that causes only mild or moderate disease that allows The plant to survive and reproduce effectively

This practice will most likely not contribute to plant virus disease Epidemics

multicropping

Roguing as a virus disease control strategy is effective if the Disease spread is

occurring slowly relative to the life cycle of the crop

A virus preparation which is not pure (it contains host Components) when used to immunize a rabbit, the rabbit will

produce antibodies to both the virus and host component

This shows a form of susceptible response by the plant to a virus Infection

relatively fast appearance of symptoms

Which of the following is a characteristic of virus as an antigen?

A virus induces the production of antibodies and reacts Specifically to the antibodies

This is among the early definitions of a virus

smaller than the pore size of bacterial filters

What principle of plant disease control is exemplified when one is Required to leave at the airport the planting materials carried from Abroad?

exclusion

The capacity of the host plant to become infected and harbor the Disease without much effect on yield

tolerance

The race specific type of resistance is also called

vertical resistance

The non-specific resistance is also called

horizontal resistance

Spraying of plants with a plant defense activator such as salicylic Acid and dichloroisonicotinic acid falls under what principle of plant Disease control?

eradication

Protection offered by inoculating a mild virus strain against a Virulent strain of the virus

cross protection

The phenomenon wherein genetically susceptible plants do not Become infected because the three factors necessary for disease (susceptible host, virulent pathogen and favorable environment) do Not coincide and interact at the proper time or for sufficient duration

tolerance

These are major insect pests of beans except

black bean aphid

The most important quarantined insect pest of mango

fruit fly

The following are advantages of biological control except

slow acting

The first report of an insect (a housefly) resistance to DDT was Recorded in this country

sweden

In the Golden Age of Biology (1840- 1900 AD), the study of plant Diseases and their control were intensified which led to the Discovery and introduction of the following, except one

DDT

In 1732, during the Renaissance Period, farmers begin to grow Crops in row

to facilitate weeding

In the mid of 20 century (1972) there was an epidemic of this Disease in the US which was attributed to their corn hybrid breeding

southern blight of corn

Refers to all forms of legislations and regulation preventing the Entry, establishment and spread of a pest organism

regulatory control

This is the process of evaluation to determine whether a pest Should be regulated, thus serves as a basis for imposing quarantine Action.

Pest Risk Analysis (PRA)

This refers to the Plant Quarantine Act of 1922

RA 3027

Which among the following pathogens are declared under Quarantine/Regulation in the Philippines?

all

Which among the following insect pests are declared under Quarantine/Regulation in the Philippines?

all of the choices

Which of the following are declared to be under the Containment Program in the Philippines with the aim of preventing the spread of An introduced pest that cannot be irradicated?

all

All are damages produced by chewing insects except

Leaf curling

Popular hymenopterous parasitoid as biocon agent of cornborer

trichogramma sp

When did V.P. Gapud spearhead the research on mites in the Philippines?

1962

The first written document on Philippine insects

pigaffeta

The genus of the starling locally known as “Martinez” which was Imported from Southern China to control locust

aetheopsar

Armyworms and cutworms prefer to pupate in the

soil

The field of entomology that deals with the interrelationship of Insects in their enironment

insect ecology

The class of arthropa that has four pairs of walking legs and body Is fused into two regions.

arachnida

The field of entomology that deals with the study of honey bees.

apiculture

The field of entomology that deals with the classification and Nomenclature of insects.

insect systematics

The biggest among the species of rats destructive to agricultural Crops

norway rat

The following are factors affecting the population dynamics of Rodents except

fumigation

Also known as the urtban rat

Rattus norvegicuS

A cultural practice against pest utilized to enhance the activities And survival of natural enemies is

habitat diversification

The interest of the concern party is to locate natural enemies in Foreign countries for collection

exploration

Integrated Pest Management does not encourage this practice

frequent, non judicious use of pesticides

Refers to the pest control method that includes tactics causing Pests to contribute to the destruction of their own species

autocidal control

This principle of crop protection is exhibited when the host is Manipulated to resist pest attack

immunization

According to Smith (1969), this phase in the sequential Development of crop protection is characterized by serious pest Outbreaks due to excessive use of pesticides and finally the collapse

disaster phase

Which of the following is an autotroph?

weed

Which of the following exemplifies the Suppression Program of Sudden pest outbreak over a wide area that cannot be controlled by Individual effort only

all

Refers to an Apparent Mechanism in Host Plant Resistance due to Geographical barriers, meteorological barriers. One example is when The soil is not conducive to plant pathogen

host escape

Which among the following are strategies to cope up when there is A breakdown of resistance

all

Which of the following are transgenic crops in the US?

all

Which is true for the function of the body regions in insects?

all

A type of mimicry in insects in which the palatable species copy The distasteful/harmful ones

batesian mimicry

A type of mimicry in insects in which the unpalatable species copy Another unpalatable species

mullerian mimicry

Refers to the beneficial species of insects which feed or attack Other insects

natural enemies

This theory of plant disease considers the pathogen as an Outgrowth of the infected host plant

Autogenetic theory of disease

Refers to the active or passive movement of the pathogen through The host tissues

colonization

This is a concoction of lime, copper sulphate and water which had Been accidentally fund to have fungicidal activity

bordeaux mixture

In the principle of pest exclusion, the pest is

kept away from the host

100

This attribute of modern agriculture can aggravate pest and Disease problems

all of the above

CS 1

Jaybee Sanchez · 100問 · 1年前

CS 1