Ornamental Exam 2023/24 with Complete Solutions
Spring Spot Disease - ANSWER-Circular sections of bermudagrass that does not green
up in the spring
Best way to control annual & perennial grasses? - ANSWER-Pre-emergence herbicides
Annual Bluegrass - ANSWER-A light green to blue winter annual grass with white seeds
that is often quite invasive
Powdery Mildew - ANSWER-White patches of this fungus appear on the leaves and stems of infected plants during cool nights with high humidity followed by warm dry days
An example of a sign of plant disease as opposed to a symptom is (that is, the disease is expressed by seeing the actual pathogen)
Bacillus Thuringiensis (Bt) - ANSWER-A species of bacteria that targets caterpillar pests and is frequently used as an insecticide that is considered organic and solder under the trade names of Dipel or Thuricide
Prostrate Spurge - ANSWER-A low growing summer annual broadleaf weed that has freely branched stems that form a mat at the soil surface in the summer. It thrives in cracks in asphalt and concrete.
What plant(s) perform poorly in the landscape because not adapted to the climate - ANSWER-White pines, lilacs and ornamental cherry trees
Leafminers - ANSWER-On boxwoods, small galls that appear on the lower surfaces of the leaves
Spider Mites - ANSWER-Sucking pests that are very small in size and have eight legs
Goosegrass - ANSWER-Summer annual grass is flat with a silvery to white center and thrives on compacted soils
Fairy Ring - ANSWER-This turfgrass disease manifests itself by stimulating rings or half
rings of grass to become dark green and sometimes mushrooms appear. Often present in areas where organic material has been buried.
Asia Ambrosia Beetles - ANSWER-Insects that bore into woody ornamental plants and 'farm a fungus' for food. They push their waste products and sawdust out of the hole in the sable that resembles toothpicks
Chickweed - ANSWER-A mat forming broadleaf winter annual with many branches
Spring Spot Disease - ANSWER-Circular sections of bermudagrass that does not green
up in the spring
Best way to control annual & perennial grasses? - ANSWER-Pre-emergence herbicides
Annual Bluegrass - ANSWER-A light green to blue winter annual grass with white seeds
that is often quite invasive
Powdery Mildew - ANSWER-White patches of this fungus appear on the leaves and stems of infected plants during cool nights with high humidity followed by warm dry days
An example of a sign of plant disease as opposed to a symptom is (that is, the disease is expressed by seeing the actual pathogen)
Bacillus Thuringiensis (Bt) - ANSWER-A species of bacteria that targets caterpillar pests and is frequently used as an insecticide that is considered organic and solder under the trade names of Dipel or Thuricide
Prostrate Spurge - ANSWER-A low growing summer annual broadleaf weed that has freely branched stems that form a mat at the soil surface in the summer. It thrives in cracks in asphalt and concrete.
What plant(s) perform poorly in the landscape because not adapted to the climate - ANSWER-White pines, lilacs and ornamental cherry trees
Leafminers - ANSWER-On boxwoods, small galls that appear on the lower surfaces of the leaves
Spider Mites - ANSWER-Sucking pests that are very small in size and have eight legs
Goosegrass - ANSWER-Summer annual grass is flat with a silvery to white center and thrives on compacted soils
Fairy Ring - ANSWER-This turfgrass disease manifests itself by stimulating rings or half
rings of grass to become dark green and sometimes mushrooms appear. Often present in areas where organic material has been buried.
Asia Ambrosia Beetles - ANSWER-Insects that bore into woody ornamental plants and 'farm a fungus' for food. They push their waste products and sawdust out of the hole in the sable that resembles toothpicks
Chickweed - ANSWER-A mat forming broadleaf winter annual with many branches
