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level: HERBICIDES

Questions and Answers List

level questions: HERBICIDES

Question	Answer
SUPPRESS THE GROWTH OF THE WEEDS without affecting grass or crops Ingestion/accidental caused acute poisoning in humans= vomiting, BURNING OF THE MOUTH, ABDOMINAL PAIN, hypotension, MYOTONIA, coma, and worse death	Chlorophenoxy compounds o 2,4-dichlorophenoxyacetic acid (2,4-D)
FAST ACTING, nonselective contact herbicides Used to CONTROL BROAD LEAVED WEEDS, GRASSES AND PLANTATION, FRUIT ORCHARDS AND GENERAL WEED CONTROL cause ACUTE SYSTEMIC EFFECTS in LUNGS & KIDNEYS Symptoms of toxicity: nausea and vomiting, diarrhea, ULCERATION OF MOUTH & ESOPHAGUS, DECLINE OF RENAL FUNCTIONS	Bipyridyl compounds
Bipyridyl compounds derivative	Brand name: Paraquat (Derivative)
o Control HERBAL GRASSES AND BROADLEAF WEED in crops –(CORN, SOYBEANS, PEANUTS) Can be a probable human carcinogen	Chloroacetanilides -Alachlor, -Acetachlor and -Metachlor
Chloroacetanilides derivatives (Known human carcinogen/causes cancer)	1 Alachlor, 2 Acetachlor and 3 Metachlor
Used during the PRE EMERGENT CONTROL of BROAD LEAVE WEEDS • Causes low acute oral and dermal toxicity, and chronic toxicity	Triazines
• Causes LOW ACUTE ORAL & DERMAL TOXICITY, and CHRONIC TOXICITY • chronic toxicity - first manifestation: DECREASE BODY WEIGHT GAIN	Atrazine, Simazine, Propazine (derivatives) (Triazines)
Signs and symptoms: IMPAIRED RESPIRATION, NEUROLOGIC DISTURBANCE and cardiovascular effects GI effects o Used for POST EMERGENT CONTROL of ANNUAL & PERENNIAL PLANTS	Phosphonomethyl amino acids
Phosphonomethyl amino acids derivatives	1 Glyphosate 2 Glufosinate
• Mild: Results to TRANSIENT GI SYMPTOMS; • Moderate/severe: GI bleeding, hypotension, PULMONARY DYSFUNCTION and RENAL DAMAGE	Glyphosate (cause mild intoxication) (Phosphonomethyl amino acids)
(developmental toxic effects) = premature deliveries, abortion and death feature (stealth born)	Glufosinate (Phosphonomethyl amino acids)