Illinois Pesticide Applicator Turfgrass
Questions and Answers 2026/2027 With
100% Complete Solutions.
shepherd's purse - CORRECT ANSWER -winter annual; flowers are small and white;
with four petals set in shape of cross; rosette leaves
spotted spurge - CORRECT ANSWER -warm season annual; germination occurs in
really high temps; exude milky sap when broken; flowers very small and cup-
shaped
dandelion - CORRECT ANSWER -cool season perennial; reproduces by broken
taproot pieces; yellow
ground ivy - CORRECT ANSWER -perennial; minty odor when crushed; long
petioles and rounded, tooth margin
curly dock - CORRECT ANSWER -perennial; dark green leaves are wavy/curly
margins; inadequate maintenance
,common yarrow - CORRECT ANSWER -perennial; fernlike leaves are soft with
covered with hairs; flowers develop in flat-topped clusters
common mallow - CORRECT ANSWER -annual/biennial; leaves are heart-shaped
with rounded teeth; abundant white hairs
Canada thistle - CORRECT ANSWER -perennial; stems are 2-5 feet tall and grooved;
spineless and pink-purple flowers
buckhorn plantain - CORRECT ANSWER -cool season perennial; rings in flowerhead
bullet shaped; drier sites neutral/basic soils
broadleaf plantain - CORRECT ANSWER -cool season perennial; spreading upright
basal; leaves are twisted/curled and tips are sharp; flower stalks are 6-30 inches
tall
how do annuals grow - CORRECT ANSWER -by seed
, large populations of weeds are indications of? - CORRECT ANSWER -improper turf
selection, poor culture, insect/disease invasion, excessive traffic, unfavorable
growth environment
how to control perennials - CORRECT ANSWER -nonselective herbicides
esters - CORRECT ANSWER -oil based; more toxic to plants, more subject to vapor
drift
amine - CORRECT ANSWER -low volatility
turfgrass is brown and pulls up easy - CORRECT ANSWER -white grubs, billbugs,
ants, earthworms
turfgrass is brown but firmly rooted - CORRECT ANSWER -sod webworm,
greenbug, chinch bugs, leafhoppers
damage is primarily holes in turf - CORRECT ANSWER -insect feeding birds, green
June beetle
Questions and Answers 2026/2027 With
100% Complete Solutions.
shepherd's purse - CORRECT ANSWER -winter annual; flowers are small and white;
with four petals set in shape of cross; rosette leaves
spotted spurge - CORRECT ANSWER -warm season annual; germination occurs in
really high temps; exude milky sap when broken; flowers very small and cup-
shaped
dandelion - CORRECT ANSWER -cool season perennial; reproduces by broken
taproot pieces; yellow
ground ivy - CORRECT ANSWER -perennial; minty odor when crushed; long
petioles and rounded, tooth margin
curly dock - CORRECT ANSWER -perennial; dark green leaves are wavy/curly
margins; inadequate maintenance
,common yarrow - CORRECT ANSWER -perennial; fernlike leaves are soft with
covered with hairs; flowers develop in flat-topped clusters
common mallow - CORRECT ANSWER -annual/biennial; leaves are heart-shaped
with rounded teeth; abundant white hairs
Canada thistle - CORRECT ANSWER -perennial; stems are 2-5 feet tall and grooved;
spineless and pink-purple flowers
buckhorn plantain - CORRECT ANSWER -cool season perennial; rings in flowerhead
bullet shaped; drier sites neutral/basic soils
broadleaf plantain - CORRECT ANSWER -cool season perennial; spreading upright
basal; leaves are twisted/curled and tips are sharp; flower stalks are 6-30 inches
tall
how do annuals grow - CORRECT ANSWER -by seed
, large populations of weeds are indications of? - CORRECT ANSWER -improper turf
selection, poor culture, insect/disease invasion, excessive traffic, unfavorable
growth environment
how to control perennials - CORRECT ANSWER -nonselective herbicides
esters - CORRECT ANSWER -oil based; more toxic to plants, more subject to vapor
drift
amine - CORRECT ANSWER -low volatility
turfgrass is brown and pulls up easy - CORRECT ANSWER -white grubs, billbugs,
ants, earthworms
turfgrass is brown but firmly rooted - CORRECT ANSWER -sod webworm,
greenbug, chinch bugs, leafhoppers
damage is primarily holes in turf - CORRECT ANSWER -insect feeding birds, green
June beetle
