Guignardia Leaf Spot Quiz Guignardia Leaf Spot 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: Guignardia Leaf Spot Fact Sheet.Email(Required) 1) Guignardia leaf spot commonly occurs on(Required) clematis Boston ivy Virginia-creeper honeysuckle 2) The pathogen that causes Guignardia leaf spot also causes black rot of apple.(Required) true false 3) Guignardia leaf spot is caused by a(Required) bacterium fungus water mold phytoplasma nematode virus none of the above 4) The typical symptoms associated with Guignardia leaf spot are roughly circular leaf spots with lighter centers and darker (purple-red) borders.(Required) true false 5) The Guignardia leaf spot pathogen commonly overwinters(Required) in soil in leaf litter from infected plants on woody branches of infected plants on pruning tools 6) Management of Guignardia leaf spot involves(Required) routinely thinning susceptible plants treating leaf litter from susceptible plants with fungicides planting resistant varieties of plant species prone to the disease removing and disposing of leaf litter from susceptible plants routinely applying curative fungicide sprays to foliage once symptoms are observed Δ
