Types of Weeds
A weed is any plant not in a place where you want it to be. TRUE or FALSE?
TRUE
These weeds germinate in spring, flower and produce seeds in summer, and die in late summer or fall.
A. Summer annual
B. Fall annual
C. Winter annual
D. Spring annual
A. Summer annual
This term refers to the method of controlling weeds by puling them, mowing them, or tilling the soil to uproot them.
A. Mechanical methods
B. Cultural methods
C. Biological methods
D. Treatment methods
A. Mechanical methods
Some weeds are prolific seed producers, with horseweed producing up to 200,000 seeds per plant and Palmer amaranth potentially reaching a million seeds. TRUE or FALSE?
TRUE
These weeds grow narrow, upright leaves and have parallel veins. They sprout only one leaf from the seed pod and develop finer, more fibrous root structures.
A. Grassy weed
B. Atypical weed
C. Broadleaf weed
D. Leafy weed
A. Grassy weed
Germinate in fall, overwinter as rosettes, flower and produce seeds in spring, and die in summer.
A. Summer annual
B. Fall annual
C. Winter annual
D. Spring annual
C. Winter annual
This term refers to the method of controlling weeds by application of herbicides.
A. Biological control
B. Treatment control
C. Chemical control
D. Cultural control
C. Chemical control
Weeds that are left unchecked in a crop field can impact yields by what percentage?
A. 25%
B. 50%
C. 75%
D. 100%
B. 50%
These weeds usually have flat leaves and net-like veins and grow from taproot or coarse root system. When they first germinate, two leaves emerge from the seed.
A. Grassy weed
B. Atypical weed
C. Broadleaf weed
D. Leafy weed
C. Broadleaf weed
These weeds sprout, flower, seed, and die, completing their life cycle, within one year or less.
A. Perennial
B. Biennial
C. Annual
D. Centennial
C. Annual
This method of control kills weeds by increasing the soil temperature using clear plastics.
A. Chemigation
B. Transduction
C. Radiation
D. Solarization
D. Solarization
Nearly 250 weed species have developed _________ to herbicides, meaning herbicides are ineffective, making weed control challenging.
A. Resistance
B. Tolerance
C. Resilience
D. Allergies
A. Resistance
This weed is a well-known hardy perennial weed with bright yellow flowers and a taproot that can be difficult to remove. Despite being known as a common lawn weed, it can be used to make wine, honey, root coffee, and they can be eaten fresh or cooked.
A. Buttercup
B. Dandelion
C. Clover
D. Chickweed
B. Dandelion
These weeds take two years to germinate, bloom and die. They are the least common type of weed and will germinate in any growing season.
A. Perennial
B. Biennial
C. Annual
D. Centennial
B. Biennial
This term refers to the method of controlling weeds by the use of insects, pathogens, birds, and fish.
A. Biological control
B. Animal control
C. Natural control
D. Cultural control
A. Biological control
This type of weed species can actually inhibit the growth of nearby plants.
A. Telepathic
B. Syncopathic
C. Allelopathic
D. Myopathic
C. Allelopathic
This is a warm-season annual grass that thrives in open, sunny areas and can be a problem in lawns. They can also be found near sidewalks or patios because their seed heads can puncture through thin soles of shoes if stepped on!
A. Bluegrass
B. Fescue Grass
C. Bermuda Grass
D. Crabgrass
D. Crabgrass
These weeds live for at least two years and have the potential to reproduce indefinitely. If you don't remove the entire root system, they'll grow back again and again.
A. Perennial
B. Biennial
C. Annual
D. Centennial
A. Perennial
What is the most important first step in controlling weeds?
A. Eradication
B. Control
C. Ignore
D. Prevention
D. Prevention
Seeds being transported away from the parent plant by wind, water, animals, vehicles, humans or other methods is referred to as:
A. Dispersal
B. Dismissal
C. Expansion
D. Propagation
A. Dispersal