Phytophthora Root and Stem Rot of Soybean Quiz Phytophthora Root and Stem Rot of Soybean 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: Phytophthora Root and Stem Rot of Soybean Fact Sheet.Email(Required) 1) Phytophthora root and stem rot can affect soybeans at any stage of development and can cause seed rot, seedling blight, and death of mature plants.(Required) true false 2) Phytophthora root and stem rot is typically lethal and can lead to severe yield and economic loss.(Required) true false 3) Phytophthora root and stem rot is typically more common where there is excessive moisture (e.g., in poorly drained areas in fields, when there is excessive rain or irrigation).(Required) true false 4) Phytophthora root and stem rot symptoms are very distinct from and unlikely to be confused with symptoms of other soybean diseases.(Required) true false 5) Soybean plants affected by Phytophthora root and stem rot tend to be scattered randomly in a field.(Required) true false 6) Phytophthora root and stem rot is caused by a(Required) bacterium fungus water mold phytoplasma nematode virus none of the above 7) The Phytophthora root and stem rot pathogen produces short-lived resting spores called oospores. These structures tend to disappear after soybean debris has decayed.(Required) true false 8) Recommended management techniques for Phytophthora root and stem rot include(Required) using crop rotation planting later in the summer planting earlier in the spring improving drainage using preventative foliar fungicide treatments using fungicide seed treatments using resistant varieties none of the above Δ
