Black Knot Quiz Black Knot 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: Black Knot Fact Sheet.Email(Required) 1) Black knot is a disease of(Required) cherry trees hawthorn trees plum trees crabapple trees 2) The primary symptom caused by black knot is a(Required) canker gall blight knot 3) Black knot is caused by a(Required) bacterium fungus virus phytoplasma nematode water mold none of the above 4) Black knot is always lethal.(Required) true false 5) Attempting to remove black knot from the main trunk of a tree could potentially predispose the tree to problems from other diseases such as(Required) peach leaf curl fire blight bacterial canker plum pockets 6) Management of black knot involves(Required) pruning out diseased branches removing volunteer trees in the genus Prunus planting resistant Prunus species/varieties (e.g., Prunus maackii) using preventative fungicide sprays Δ
