Weeds
Diseases
Insects
Plant Pest
Other Info
100
Compete with plants for sunlight, nutrients, and water
What is a weed?
100
Causes injury to the plant tissues and cells, reducing their ability for photosynthesis.
What is a disease?
100
Nourishment and shelter
What insect need?
100
Cause of food shortage
What are plant pests?
100
Too cold, too hot, too dry, too humid
What are environment reasons effecting a disease?
200
Inhibit crop growth and lower crop quality
What are damages caused by weeds?
200
Organisms that transmit diseases
What is a pathogen?
200
Eat the leaves, stem, and flowers (foliage) of a plant
What are chewing insects?
200
Deer, tomato hornworm, aphid, root rot, squirrels, dandelions, humans
What are all examples of pests?
200
Insects are these, which means carrier
What is a vector?
300
Are vigorous in their competition and are not commonly threatened by other pest because on an?
What is immunity?
300
Environmental conditions
What are major causes of diseases?
300
2 ways insects inhibit plant growth
What is physically and physiologically
300
I eat the inside of the corn stalk, causing it to fall over.
What is the corn borer?
300
A pathogen carrying the disease that is able to attack and inflict the disease into the plant
What is a virulent pathogen?
400
Dandelion, crabgrass, plantain, purslane, chicory
What are examples of weeds?
400
Weakened plant due to injury or stress
What is a susceptible host?
400
Insects like aphids and leaf hoppers suck the sap from the leaves and stem, robbing the plant of essential nutrients
What is sap sucking insects?
400
Inhibit certain growth processes and even destroy the plant, even though they are tiny.
What are insect eggs?
400
Effect of diseases, insects, and weeds
What is reduce yields and crop quality?
500
Due to this, these will populate an area quickly if not treated.
What is a faster growth rate?
500
Conditions that must be present for a plant disease to develop
What are susceptible host, virulent pathogen, and favorable environment?
500
Carrying disease causing organisms plant to plant or by depositing their eggs on or within a plant
What are examples of harmful vectors?
500
Aphids, fungus gnats, spider mites, and root rot
What are biggest greenhouse pests?
500
Cell division, development, absorption, translocation, photosynthesis, food storage, reproduction, and overwintering
What are normal physiological plant functions?
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