This quiz works best with JavaScript enabled. Home > Crop > Weeds > Weed Management – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Weed Management Quiz 1 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is considered a biological method of seed control? A) Use of natural predators and pathogens. B) Use of organic mulch. C) Flaming weeds. D) Soil solarization. Show Answer Correct Answer: A) Use of natural predators and pathogens. 2. The weed that has entered into India with helicopter tyres is A) Parthenium. B) Tribulus. C) Wild oats. D) Xanthium. Show Answer Correct Answer: B) Tribulus. 3. What is the grass-like weed with yellowish-green foliage and a three-sided stem that grows in lawns and moist areas? A) Chicory. B) Mugwort. C) Buckhorn plantain. D) Yellow nutsedge. Show Answer Correct Answer: D) Yellow nutsedge. 4. Which one of the following plants is on Pennsylvania's noxious weed list? A) Oriental bittersweet. B) Japanese stilt grass. C) Garlic mustard. D) Purple loosestrife. Show Answer Correct Answer: D) Purple loosestrife. 5. Weed that propagate s by stem cutting is A) Leucas. B) Cuscutta. C) Striga. D) Xanthium. Show Answer Correct Answer: B) Cuscutta. 6. Which is NOT categorized under herbicide classification? A) Method of application. B) Mode of action. C) Chemical structure. D) Habitat. Show Answer Correct Answer: D) Habitat. 7. The use of antidotes to protect crop from herbicide damage A) Herbicide- insecticide interaction. B) Herbicide- fertilizer interaction. C) Herbicide safeners. D) Herbicide pathogen interaction. Show Answer Correct Answer: C) Herbicide safeners. 8. Weeds dispersed by man are called A) Arthrophte. B) Anthophtye. C) Anthesite. D) Awnthopyte. Show Answer Correct Answer: B) Anthophtye. 9. Disc like reduced vegetaive bud is seen in A) Wild onion. B) Lantana. C) Hydrilla. D) Pistia. Show Answer Correct Answer: A) Wild onion. 10. Which of the following statements about portable propane flamers is false? A) They eliminate perennial weeds. B) They cause plant cells to rupture. C) They cause weeds to wilt. D) Their effects are similar to vinegar and contact chemicals. Show Answer Correct Answer: A) They eliminate perennial weeds. 11. Which is NOT the disadvantage of herbicide A) Mammalian toxicity. B) Residue in soil environment. C) Herbicide tolerance. D) Increase production cost. Show Answer Correct Answer: C) Herbicide tolerance. 12. Weed that dessiminate due to stiff hair is A) Achyranthes. B) Cenchrus. C) Tribulus. D) Argemone. Show Answer Correct Answer: B) Cenchrus. 13. Which one is formula for herbicide independent effect A) 1 + 2 = 2. B) 1 + 1 = 2. C) 1 + 1 = 3. D) 1 + 1 = 1. Show Answer Correct Answer: A) 1 + 2 = 2. 14. The buds in hydrilla are called A) Sobole s. B) Turions. C) Nuts. D) Rhizome. Show Answer Correct Answer: B) Turions. 15. Post-emergence broadleaf herbicides are best applied: A) When daily temperatures are between 65$^\circ$ and 85$^\circ$. B) When temperatures are below 65$^\circ$. C) In the summer, when temperatures are above 90$^\circ$. D) In the fall, after several hard freezes. Show Answer Correct Answer: A) When daily temperatures are between 65$^\circ$ and 85$^\circ$. 16. A hoe works best when the weather conditions are: A) Warm and wet. B) Hot and dry. C) Cool and wet. D) Cold and dry. Show Answer Correct Answer: B) Hot and dry. 17. An exotic species whose introduction causes economic or environmental harm or harm to human life is the federal government's definition of a(n): A) Noxious species. B) Invasive species. C) Quarantined species. D) Weed species. Show Answer Correct Answer: B) Invasive species. 18. The product Preen can contain the herbicide: A) Trifluralin. B) Glyphosate. C) 2, 4-D. D) All of these. Show Answer Correct Answer: D) All of these. 19. Which one of the following weeds is a biennial? A) Ground ivy. B) Canada thistle. C) Garlic mustard. D) Dandelion. Show Answer Correct Answer: C) Garlic mustard. 20. Which major element is NOT contained in organic herbicide? A) Carbon. B) Ammonium. C) Nitrogen. D) Phosphorus. Show Answer Correct Answer: B) Ammonium. Next →Related QuizzesCrop QuizzesWeed Management Quiz 2 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books