Plant Pests: Weeds

Which are the three main types of use for herbicides?

• A. Agronomic, ecological, economic

• B. Agronomic, ecological, environmental

• C. Agronomic, environmental, economic

• D. Environmental, economic, ecological

For which of the following resources do weeds NOT compete with desirable plants?

• Space

• Water

• Pollen

• Sunlight

Which type of plant usually has a deep root system?

• Annual

• Perennial

• Biennial

• All the answer choices are correct

Which other plant is in the same family as bitterweed?

• Sunflower

• Dandelion

• Canadian thistle

• Barnyard grass

Which plant is commonly found in vineyards?

• Bermuda grass

• Bitterweed

• Black Nightshade

• Broadleaf plantain

Which is the average rainfall needed for broomsedge bluestem to grow?

• 25 inches

• 15 inches

• 35 inches

• 10 inches

Which plant is used as a popular ornamental tree?

• Sunflower

• Bitterweed

• Bull thistle

• Chinese tallow

Roundup® is the common brand name for which herbicide?

• Glufosinate

• Glyphosate

• Oryzalin

• Triclopyr

Dewberry plants have a fruit similar to which plant?

• Strawberry

• Blueberry

• Hackberry

• Blackberry

Which is NOT a characteristic of oxalis?

• Low growing

• Biennial

• Bright yellow flowers

• Grown as an ornamental plant.