Alabama OTPC Pests & Weeds Exam Questions With All Correct Answers
2026 Latest Update!!!
1. Piercing-sucking Scales, mealybugs, aphids, whiteflies & lacebugs; Leave Sooty Mold or Honeydew
insects
2. Scales Most damaging pests of ornamental plants; feed on underside of leaves, appear
as bumps, prune out infested parts, use less susceptible plants when possible
3. Mealybugs Scale insects, Covered with white, waxy material, usually a houseplant problem;
replace badly infested plants
4. Aphids winged or wingless; tail pipes or bumps on rearend, reproduce rapidly; wash ott
with water or soaps/oils
5. Lace bugs azalaes and other shrubs; feed on underside of leaves; look for black grainy speck
of excrement
6. Thrips Feed on blossoms causing petals to become blotched, most abundant pest of
ornamental plants
7. Whiteflies Close relative of scales, feed under leaf surfaces
8. Chewing insects Bagworms, cutworms, grasshoppers & beetles
9. Leafminers Larvae of several kinds of insects; feed inside the leaves creating tunnels causing
discoloration
10. Borers Cause injury by burrowing into ornamentals and trees. Stressed plants more
susceptible
11. Brown Patch Most damaging disease of St. Augustinegrass in AL.
12. Spring Dead Spot Disease of Bermuda and intensively managed Zoysia and St. Augustine
13. Dollar Spot Caused by fungus; most common disease of AL turfgrasses in summer and early
fall
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, Alabama OTPC Pests & Weeds Exam Questions With All Correct Answers
2026 Latest Update!!!
14. Leaf Scorch marginal scalding or scorching of leaves
15. Fungi Cause 80% of plant disease
16. Gall disease that attacks azaleas
17. Anthracnose disease that attacks dogwoods and maples
18. Leaf Spot disease that attacks holly and other shrubs
19. Phomopsis disease that attacks juniper
20. Fireblight disease that attacks pear trees and photinia
21. Ground Pearls scale insects that live in the soil and feed on grass roots; problem in lawns and turn;
leave small, irregular area of dying or dead grass. No ettective insecticide
22. Billbugs grubs live in the soil and feed on grass roots; grass turns yellow then brown. Adult
is the snout beetle.
23. White grubs immature (larva) stage of beetles; feed on grass roots; do mechanical damage
when they move out of the soil
24. Mole Crickets most destructive insect pest on turf and lawns in AL.
25. Two-lined Spittle- have become grass pests in the South; adults have two red lines across their black
bugs wings
26. Fall Armyworms Annual pest on crops in SE
27. Large Crabgrass Summer annual; fibrous root system and roots at lower nodes; lower stems flat-
tened, pale green with hair sheaths that form unsightly patches
28. Goosegrass
2/5
2026 Latest Update!!!
1. Piercing-sucking Scales, mealybugs, aphids, whiteflies & lacebugs; Leave Sooty Mold or Honeydew
insects
2. Scales Most damaging pests of ornamental plants; feed on underside of leaves, appear
as bumps, prune out infested parts, use less susceptible plants when possible
3. Mealybugs Scale insects, Covered with white, waxy material, usually a houseplant problem;
replace badly infested plants
4. Aphids winged or wingless; tail pipes or bumps on rearend, reproduce rapidly; wash ott
with water or soaps/oils
5. Lace bugs azalaes and other shrubs; feed on underside of leaves; look for black grainy speck
of excrement
6. Thrips Feed on blossoms causing petals to become blotched, most abundant pest of
ornamental plants
7. Whiteflies Close relative of scales, feed under leaf surfaces
8. Chewing insects Bagworms, cutworms, grasshoppers & beetles
9. Leafminers Larvae of several kinds of insects; feed inside the leaves creating tunnels causing
discoloration
10. Borers Cause injury by burrowing into ornamentals and trees. Stressed plants more
susceptible
11. Brown Patch Most damaging disease of St. Augustinegrass in AL.
12. Spring Dead Spot Disease of Bermuda and intensively managed Zoysia and St. Augustine
13. Dollar Spot Caused by fungus; most common disease of AL turfgrasses in summer and early
fall
1/5
, Alabama OTPC Pests & Weeds Exam Questions With All Correct Answers
2026 Latest Update!!!
14. Leaf Scorch marginal scalding or scorching of leaves
15. Fungi Cause 80% of plant disease
16. Gall disease that attacks azaleas
17. Anthracnose disease that attacks dogwoods and maples
18. Leaf Spot disease that attacks holly and other shrubs
19. Phomopsis disease that attacks juniper
20. Fireblight disease that attacks pear trees and photinia
21. Ground Pearls scale insects that live in the soil and feed on grass roots; problem in lawns and turn;
leave small, irregular area of dying or dead grass. No ettective insecticide
22. Billbugs grubs live in the soil and feed on grass roots; grass turns yellow then brown. Adult
is the snout beetle.
23. White grubs immature (larva) stage of beetles; feed on grass roots; do mechanical damage
when they move out of the soil
24. Mole Crickets most destructive insect pest on turf and lawns in AL.
25. Two-lined Spittle- have become grass pests in the South; adults have two red lines across their black
bugs wings
26. Fall Armyworms Annual pest on crops in SE
27. Large Crabgrass Summer annual; fibrous root system and roots at lower nodes; lower stems flat-
tened, pale green with hair sheaths that form unsightly patches
28. Goosegrass
2/5
