
Pre-Test in CROP PROTECTION 50 Items
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Yellowing of normally green tissue caused by inadequate light is called
Disproved theā theory of spontaneous generationā
Wrote the āPhilippine Economic Plant Diseaseā
Rotting of seedling prior to emergence or rotting of seedling stems at an area just above the soil is
Symptoms of plant disease include the following , except
A science that deals with the nature ,cause and control of plant disease
An extensive ,usually sudde4n death of host tissue
The disintegration and decomposition of host tissue
Hypoplastic symptoms includes the following , except
A symptom which effects on the distant and uninvaded plant parts
A localized necrotic area also referred to as lesion
Air pollutant that cause plant disease includes the following , except
A term for plant disease which occur on leaves fruits that undergo prolonged exposure to high temperatures and bright sunlight
The major means of spreading air āborne pathogens
The presence of different nuclei in the same mycelium
Mechanism of variation in fungal plant pathogens includes the following ,except
A spontaneous heritable change is called
A term which involves extra schromosomal heredity factors
Differ in the host variety they attack although morphologically identical is called
A nematodes feeding only on root hair and root tips is called
A pathogenic naked RNA entities is
An obligate intracellular parasites with wavy cell wall
Reduction of plant photosynthetic capacity was due to pathogen that attack the
Unicellular organism which reproduce by binary fission
Keeping the pest from becoming a problem is called
Insect pest destroy the crops directly through , except
Moths , butterflies and skipper belong to what insect order
An insect order which is considered as a livestock pest
A cause of plant disease which is tiny ,simple plant commonly called āmoldā
Probably the most common type of nematodes in the Philippines
Distorting and puffing of a leaf due to the unequal development of its sides is called
All are non parasitic causes of plant disease, except
Inadequate oxygen in potato results to
The detelerious effect of one plant on another is called
Asexual reproduction in plants is called
Exposure to low temperature above freezing is called
Parasite agent of plant disease which is composed of stable and free ribo-nucleic acids (RNA) that can infect plant cells
An organism which can subsist on non āliving materials is called
All are signs of plant diseases ,except
A biennial weed will live for
The term instars refers to the development stage of
Plant disease are vector by
Gradual metamorphosis consists of three life stages ,except
Means a total removal or deduction of a pest
A herbicide that kill some plant species with little or no injury to others is called
A susceptible crop planted to attract a pest into a localized area
Refers to a pest ās ability to repopulate after its natural control has been eliminated by a pesticide applications is called
A example of an inorganic pesticide is called
A fungicide which is applied prior to disease infection is called
This herbicide will not move or translocate within the plant , they often used for controlling annual weeds