Weeds Flashcards
(23 cards)
What is a weed?
A weed is any plant that is considered undesirable, troublesome, or noxious in a particular situation.
Fill in the blank: Weeds are often characterized by their ability to grow rapidly and __________.
reproduce quickly
What are the two main categories of weeds?
Annuals and perennials
Multiple Choice: Which of the following is NOT a common method of weed control? A) Herbicides B) Hand pulling C) Overwatering D) Mulching
C) Overwatering
What is the primary purpose of using herbicides?
To kill or inhibit the growth of undesirable plants.
True or False: Perennial weeds die off completely every year.
False
What is one disadvantage of using chemical herbicides?
They can harm beneficial plants and wildlife.
Fill in the blank: Weeds can compete with crops for __________.
nutrients, water, and sunlight
What is the term for the process of removing weeds from an area?
Weeding
Multiple Choice: Which type of weed completes its life cycle in one growing season? A) Annual B) Perennial C) Biennial
A) Annual
True or False: Mulching can help suppress weed growth.
True
What is the impact of weeds on agricultural productivity?
Weeds can significantly reduce crop yields by competing for resources.
Fill in the blank: Some weeds can be beneficial by attracting __________.
pollinators
Multiple Choice: Which of the following is an example of a perennial weed? A) Dandelion B) Crabgrass C) Chickweed
A) Dandelion
What is integrated weed management?
A holistic approach that combines multiple strategies for effective weed control.
True or False: All weeds are harmful and should be eradicated.
False
What is the role of cover crops in weed management?
Cover crops can suppress weed growth by outcompeting them for resources.
Fill in the blank: The __________ method involves using physical barriers to prevent weed growth.
solarization
Multiple Choice: Which of the following is a common physical method of weed control? A) Burning B) Fertilizing C) Irrigating D) Pruning
A) Burning
What is the significance of seed bank in relation to weeds?
The seed bank is a reservoir of viable weed seeds in the soil that can germinate under favorable conditions.
True or False: Weeds can evolve resistance to herbicides over time.
True
What is a no-till farming practice?
A method that minimizes soil disturbance, which can help manage weed populations.
