Iowa Commercial Applicator License 1A
Exam 2025 Questions and Answers
Large Crabgrass - --CORRECT ANSWER--Annual
Ligule: membranous, short, jagged
Sheath: Hairy and flattened as plant developes
Barnyardgrass - --CORRECT ANSWER--Annual
Ligule: Absent
Leaf blade and sheath: Hairless
Leaf sheath: Flattened and purple near base
Woolly Cupgrass - --CORRECT ANSWER--annual
Ligule: short and hairlike
Leaf blade: Densely covered with short hair, one leaf blade crinkled
Witchgrass - --CORRECT ANSWER--Annual
Ligule: fringe of hairs
Leaf blade and sheath: densely hairy
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, Leaves had prominent midrib
Fall Panicum - --CORRECT ANSWER--Annual
Ligule: Hairlike
Leaf Blades: dull above, glossy below
Nodes on mature plants are swollen
Giant Foxtail - --CORRECT ANSWER--Annual
Ligule: Hairlike
Leafblade: Hairy on top, sparse on bottom
Yellow Foxtail - --CORRECT ANSWER--Annual
Ligule: hairlike
Leafblade: hairless except for very long, white hair on upper surface at base of
blade
Sheath: can be flattened and reddish near soil
Green Foxtail - --CORRECT ANSWER--Annual
ligule: Hairlike
Leaf Blade: finely veined with rough margins
Leaf sheath: hairless to sparsely hairy
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
Exam 2025 Questions and Answers
Large Crabgrass - --CORRECT ANSWER--Annual
Ligule: membranous, short, jagged
Sheath: Hairy and flattened as plant developes
Barnyardgrass - --CORRECT ANSWER--Annual
Ligule: Absent
Leaf blade and sheath: Hairless
Leaf sheath: Flattened and purple near base
Woolly Cupgrass - --CORRECT ANSWER--annual
Ligule: short and hairlike
Leaf blade: Densely covered with short hair, one leaf blade crinkled
Witchgrass - --CORRECT ANSWER--Annual
Ligule: fringe of hairs
Leaf blade and sheath: densely hairy
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, Leaves had prominent midrib
Fall Panicum - --CORRECT ANSWER--Annual
Ligule: Hairlike
Leaf Blades: dull above, glossy below
Nodes on mature plants are swollen
Giant Foxtail - --CORRECT ANSWER--Annual
Ligule: Hairlike
Leafblade: Hairy on top, sparse on bottom
Yellow Foxtail - --CORRECT ANSWER--Annual
Ligule: hairlike
Leafblade: hairless except for very long, white hair on upper surface at base of
blade
Sheath: can be flattened and reddish near soil
Green Foxtail - --CORRECT ANSWER--Annual
ligule: Hairlike
Leaf Blade: finely veined with rough margins
Leaf sheath: hairless to sparsely hairy
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2