So, in honor of finals week, I put together a quiz similar to the one the students take in their introductory turfgrass laboratory. I will post the answers early next week. Good luck, and keep your eyes on your own paper!
Question #1
This grass has a boat-shaped leaf tip and folded vernation. The leaf blade possesses a prominent mid-rib. Growth is rhizomatous.
Name the grass, common and scientific name.
Question #2
This grass also has a boat-shaped leaf tip and folded vernation. There is a prominent mid-rib and a membranous ligule at the base of the leaf. Growth is bunch type.
Name the grass, common and scientific name.
Question #3
This grass has a pointed leaf tip and a folded vernation. There is a tuft of hairs at the base of the leaf blade. Growth is rhizomatous and stoloniferous.
Name the grass, common and scientific name.
Question #4
This weed has small white flowers and the leaves are covered by tiny hairs. This weed can be a problem in golf greens and other closely-mowed turf.
Name the weed and its lifecycle.
Question #5
This weed has heart shaped leaves and white to purple flowers. It can produce rooting stolons and rhizomes.
Name the weed and its lifecycle.
Question #6
This weed has a folded vernation and a zipper-like seedhead. The stems are silver toward the base of the plant.
Name the weed and its lifecycle.
Question #7
This seed lacks an awn. The rachilla is flat in cross section.
Name this seed.
Question #8
This seed has a very short awn. The rachilla is round and flares at the top.
Name this seed.
Question #9
This insect chews into the stem and deposits its eggs. The eggs hatch and the larvae feed on the crown.
Name this insect.
Question #10
This insect hasn't always been a problem in Iowa. Damage can occur to ornamental as well as turfgrass.
Name this insect.
Question #11
The claim is often made that more money is spent on this disease than any other. It is more prevalent under low nitrogen fertility.
Name the disease.
Question #12
This disease appears most often during periods of high air temperatures and humidity. Symptoms appear in a patch and a dark "smoke ring" is often visible. It is more prevalent under high nitrogen fertility
Name the disease.
Marcus Jones
Graduate Research Assistant
Iowa State University
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