PCA - PLANT PATHOGENS WITH CORRECT AND
VERIFIED ANSWERS YEAR 2024/2025
plant pathogens can be - verified answers-a factor in integrated
pest management for controlling insects and mites
powdery mildews are caused by - verified answers-funguses
which of the following is a sign of a disease - verified answers-
white mycelium on twigs and fruit
some abiotic factors that cause plant disease are - verified
answers-air pollutants
which of the following biotic factors contribute to plant diesease
- verified answers-viroids and viruses
a non obliate parasite - verified answers-can live on either a
living or a dead hosts
kotch postulates are readily implemented for - verified answers-
fungi
an example of human impact in the development in plant
disease is - verified answers-the use of preventative fungicide
applications
anthracnose diseases cannot occur without - verified answers-
the presence of the pathogen in the soil
the use of pathogen free propagated material - verified
answers-only helps if environmental conditions favorable for
disease development are not present
, plant disease triangle is used for the diagnosis because it
allows you to discount disease that - verified answers-wounldn't
occur under existing environmental conditions
which of the following factors affects epidemics - verified
answers-the virulence of the pathogens
dominant environmental factor in development in most
epidemics caused by fungi is - verified answers-moisture
in addition to host pathogen and environment another
component that affects the development of an epidemic is -
verified answers-the age of the host plants
which type of pathogen decimation method is responsible for
most frequent and most wide spread plant disease epidemics -
verified answers-air borne
most soil born diseases are - verified answers-single cycled
diseases
serious epidemics are more likely to occur from a multiple
cycled disease rather than a single cycled disease because -
verified answers-multiple cycled diseases produce secondary
inoculum that can cause secondary infections
sanitation practices are often a more effective management tool
for single cycled diseases then multi cycled diseases because -
verified answers-in a single cycled disease the primary
incoculum is the only inocuclum available for the entire season
a race of a pathogen refers to - verified answers-a group of
pathogens within a species that infects only certain varieties of
a host plant
the time between host penetration and the first appearance of
symptoms is called the - verified answers-incubation period
VERIFIED ANSWERS YEAR 2024/2025
plant pathogens can be - verified answers-a factor in integrated
pest management for controlling insects and mites
powdery mildews are caused by - verified answers-funguses
which of the following is a sign of a disease - verified answers-
white mycelium on twigs and fruit
some abiotic factors that cause plant disease are - verified
answers-air pollutants
which of the following biotic factors contribute to plant diesease
- verified answers-viroids and viruses
a non obliate parasite - verified answers-can live on either a
living or a dead hosts
kotch postulates are readily implemented for - verified answers-
fungi
an example of human impact in the development in plant
disease is - verified answers-the use of preventative fungicide
applications
anthracnose diseases cannot occur without - verified answers-
the presence of the pathogen in the soil
the use of pathogen free propagated material - verified
answers-only helps if environmental conditions favorable for
disease development are not present
, plant disease triangle is used for the diagnosis because it
allows you to discount disease that - verified answers-wounldn't
occur under existing environmental conditions
which of the following factors affects epidemics - verified
answers-the virulence of the pathogens
dominant environmental factor in development in most
epidemics caused by fungi is - verified answers-moisture
in addition to host pathogen and environment another
component that affects the development of an epidemic is -
verified answers-the age of the host plants
which type of pathogen decimation method is responsible for
most frequent and most wide spread plant disease epidemics -
verified answers-air borne
most soil born diseases are - verified answers-single cycled
diseases
serious epidemics are more likely to occur from a multiple
cycled disease rather than a single cycled disease because -
verified answers-multiple cycled diseases produce secondary
inoculum that can cause secondary infections
sanitation practices are often a more effective management tool
for single cycled diseases then multi cycled diseases because -
verified answers-in a single cycled disease the primary
incoculum is the only inocuclum available for the entire season
a race of a pathogen refers to - verified answers-a group of
pathogens within a species that infects only certain varieties of
a host plant
the time between host penetration and the first appearance of
symptoms is called the - verified answers-incubation period
