Rhizosphaera Needle Cast Quiz Rhizosphaera Needle Cast Quiz Take the Quiz! Get a perfect score! Earn the medallion! Questions may have more than one correct answer. Be sure to select all answers that are correct. If you don't get a perfect score, you can take the quiz again until you do! Please provide your email address to receive your digital medallion. Reference: Rhizosphaera Needle Cast Fact Sheet.Email(Required) 1) Rhizosphaera needle cast is a disease specific to Colorado blue spruce.(Required) true false 2) Typical signs and symptoms associated with Rhizosphaera needle cast on older trees include(Required) purpling/browning of interior needles on lower branches purpling/browning of needles at branch tips needle tip browning branch dieback needle drop oozing sap rows of small black spheres along the length of affected needles none of the above 3) Rhizosphaera needle cast is caused by a(Required) bacterium fungus water mold phytoplasma nematode virus none of the above 4) The Rhizosphaera needle cast pathogen can produce spores both in infected needles on a tree and in needles that have fallen to the ground.(Required) true false 5) Infection by the Rhizosphaera needle cast pathogen is favored by wet weather.(Required) true false 6) Strategies that can successfully help manage Rhizosphaera needle cast include(Required) using less susceptible tree species using dwarf varieties of susceptible tree species mulching properly watering during droughty periods using appropriate curative fungicides using appropriate preventative fungicides none of the above Δ
