Aquatic Herbicide Applicator Questions
2025/2026 Exam All Answers and
Illustrations Given
How many herbicides are registered in the USA? - 🧠 ANSWER ✔✔About
200
How many aquatic herbicides are registered in the USA? - 🧠 ANSWER
✔✔10
What are the absorption characteristic groups that herbicides are classified
by? - 🧠 ANSWER ✔✔Contact herbicides
Systematic herbicides
,What are the physiological processes groups that herbicides are classified
by? - 🧠 ANSWER ✔✔Cell division
Tissue development
Photosynthesis
Respiration
Nitrogen metabolism and enzyme activity
What are the selectivity groups that herbicides are classified by? - 🧠
ANSWER ✔✔Nonselective (broad spectrum)
Selective
List the aquatic contact herbicides - 🧠 ANSWER ✔✔Endothall
Diquat
Copper
List the aquatic systematic herbicides - 🧠 ANSWER ✔✔2,4-D
Dichlobenil
,Fluoridone
Glyphosate
Simazine
List cell division aquatic herbicides - 🧠 ANSWER ✔✔Dichlobenil
List tissue development aquatic herbicides - 🧠 ANSWER ✔✔2,4-D
List the photosynthesis aquatic herbicides - 🧠 ANSWER ✔✔Copper
Diquat
Fluridone
Simazine
List the respiration aquatic herbicides - 🧠 ANSWER ✔✔Endothall
List the nitrogen metabolism and enzyme activity aquatic herbicides - 🧠
ANSWER ✔✔Glyphosate
List the broad spectrum aquatic herbicides - 🧠 ANSWER ✔✔Copper
Diquat
Endothall
Glyphosate
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
, Simazine
Dichlobenil
Selectivity can be affected by... - 🧠 ANSWER ✔✔the amount of herbicide
applied
List the selective aquatic herbicides - 🧠 ANSWER ✔✔2,4-D
Fluridone
What weather conditions can affect herbicide appliaction? - 🧠 ANSWER
✔✔Rainfall, Wind, Temperature, Water movement, Soil chemistry, and
Water chemistry
Why does more rainfall affect herbicide application? - 🧠 ANSWER
✔✔Washes off foliar applied herbicide before it can be adequately
absorbed into the plant
How does less rainfall affect herbicide application? - 🧠 ANSWER
✔✔drought stressed plants are less likely to absorb both foliar and soil
applied herbicides
2025/2026 Exam All Answers and
Illustrations Given
How many herbicides are registered in the USA? - 🧠 ANSWER ✔✔About
200
How many aquatic herbicides are registered in the USA? - 🧠 ANSWER
✔✔10
What are the absorption characteristic groups that herbicides are classified
by? - 🧠 ANSWER ✔✔Contact herbicides
Systematic herbicides
,What are the physiological processes groups that herbicides are classified
by? - 🧠 ANSWER ✔✔Cell division
Tissue development
Photosynthesis
Respiration
Nitrogen metabolism and enzyme activity
What are the selectivity groups that herbicides are classified by? - 🧠
ANSWER ✔✔Nonselective (broad spectrum)
Selective
List the aquatic contact herbicides - 🧠 ANSWER ✔✔Endothall
Diquat
Copper
List the aquatic systematic herbicides - 🧠 ANSWER ✔✔2,4-D
Dichlobenil
,Fluoridone
Glyphosate
Simazine
List cell division aquatic herbicides - 🧠 ANSWER ✔✔Dichlobenil
List tissue development aquatic herbicides - 🧠 ANSWER ✔✔2,4-D
List the photosynthesis aquatic herbicides - 🧠 ANSWER ✔✔Copper
Diquat
Fluridone
Simazine
List the respiration aquatic herbicides - 🧠 ANSWER ✔✔Endothall
List the nitrogen metabolism and enzyme activity aquatic herbicides - 🧠
ANSWER ✔✔Glyphosate
List the broad spectrum aquatic herbicides - 🧠 ANSWER ✔✔Copper
Diquat
Endothall
Glyphosate
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
, Simazine
Dichlobenil
Selectivity can be affected by... - 🧠 ANSWER ✔✔the amount of herbicide
applied
List the selective aquatic herbicides - 🧠 ANSWER ✔✔2,4-D
Fluridone
What weather conditions can affect herbicide appliaction? - 🧠 ANSWER
✔✔Rainfall, Wind, Temperature, Water movement, Soil chemistry, and
Water chemistry
Why does more rainfall affect herbicide application? - 🧠 ANSWER
✔✔Washes off foliar applied herbicide before it can be adequately
absorbed into the plant
How does less rainfall affect herbicide application? - 🧠 ANSWER
✔✔drought stressed plants are less likely to absorb both foliar and soil
applied herbicides
