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PLNT 1213 Exam 4 questions with complete solutions graded A+
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PLNT 1213 Exam 4 questions with complete solutions graded A+
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PLNT 1213 Exam 4Stages of small grain maturity - correct answer ✔✔milk, soft dough, hard dough, mature
Forage maturity - correct answer ✔✔forages are harvested for hay before they reach physiological
maturity
test weight and factors - correct answer ✔✔estimates the weight of a bushel of grain; species, moisture,
disease, drought, hail, variety
pest management strategies - correct answer ✔✔cultural control, biological control, mechanical control,
chemical control
Cultural control (pest management) - correct answer ✔✔managing the growing environment using
cultural practices; sanitation, crop rotation, row spacing
biological control (pest management) - correct answer ✔✔introduction of an animal/insect/microbial
species that is a natural enemy of the pest
mechanical control (pest management) - correct answer ✔✔using physical methods to control pests
chemical control (pest management) - correct answer ✔✔using pesticides to kill or prevent pest
infestation
pesticide classifications - correct answer ✔✔target pest, chemical structure, mode of action,
formulation, method of application
over application of pesticide - correct answer ✔✔likely to injure the crop and increase potential for
environmental harm
, under application of pesticides - correct answer ✔✔results in poor pest control which increases the
likelihood of pesticide resistance
weed - correct answer ✔✔plant growing where it is not wanted
how weeds affect crops - correct answer ✔✔competition, reduce quality, harbor insects or disease,
decrease irrigation efficiency, interfere with harvest
Weed management methods - correct answer ✔✔mechanical, biological, chemical, cultural
glyphosate - correct answer ✔✔sold as round up; works by disrupting an enzyme plants need to grow
disease - correct answer ✔✔loss of the ability to properly function as a result of prolonged irritation by a
pathogen
pathogen - correct answer ✔✔a species that is able to cause disease
disease only occurs if these three conditions are met - correct answer ✔✔susceptible host, favorable
environment, virulent pathogen
fungi - correct answer ✔✔cause most economically important diseases
disease management methods - correct answer ✔✔cultural, chemical, biological
cultural disease management - correct answer ✔✔avoid growing environments that are conductive to
disease formation; plant varieties developed with resistance to specific diseases
chemical disease management - correct answer ✔✔use weather based advisories to schedule fungicide
applications
biological disease management - correct answer ✔✔use a predatory fungus to control another fungus
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