Iris Severe Mosaic Quiz Iris Severe Mosaic 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: Iris Severe Mosaic Fact Sheet.Email(Required) 1) Iris severe mosaic affects a relatively narrow range of plants including irises, crocuses, and lilies.(Required) true false 2) Iris severe mosaic is caused by a(Required) bacterium fungus water mold phytoplasma nematode virus none of the above 3) Symptoms of iris severe mosaic can include(Required) pale green or yellow stripes blotchy flower color wilting plant stunting root decay no symptoms at all none of the above 4) The iris severe mosaic pathogen can be moved from plant to plant by aphids.(Required) true false 5) Pruning off symptomatic leaves, stems, and flowers is an effective management strategy for iris severe mosaic because the pathogen is not able to infect bulbs, corms, or rhizomes.(Required) true false 6) German bearded irises are more resistant to iris severe mosaic than Siberian irises.(Required) true false 7) Weed management is important in managing iris severe mosaic because weeds serve as a reservoir for the pathogen.(Required) true false Δ