c. corn c. PPI 18. Which of these crops are known to have potential allelopathic effects: a. sugarcane b. onions d. sorg

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C Corn C Ppi 18 Which Of These Crops Are Known To Have Potential Allelopathic Effects A Sugarcane B Onions D Sorg 1 (162.3 KiB) Viewed 34 times

c. corn c. PPI 18. Which of these crops are known to have potential allelopathic effects: a. sugarcane b. onions d. sorghum 19. The type of biological control in which an organism is imported from the area of origin is called a. augmentative b. classical c. conventional d. quarantine 20. Japanese dodder has which of these legal classifications? a. A b. B c. C d. Q 21. In which of the following situations would mowing be the most effective weed control method? a. controlling prostate weeds b. controlling horseweed c. controlling an erect broadleaf annual weed d. controlling grassy weed 22. Which of these herbicide application methods would need soil incorporation? a. Aerial application b. Postemergence d. Hack and squirt 23. Which of these may be an invasive weed that looks more like bamboo? a. Panda weed b. Koala weed c. Giant reed d. Johnsongrass 24. Redroot pigweed is an example of a: a. R species b. K species c. W species d. Q species 25. Which of these herbicides would you apply primarily as a pre-emergence herbicide: a. glyphosate b. gramoxone c. 2,4-D d. treflan 26. Which of these herbicides would you apply primarily as a postemergence herbicide: a. Treevix b. Alion c. Prowl d. treflan 27. The length of time from herbicide application to when the next crop can be planted without being injured by the herbicide residue in the soil is called: a. plantback-restriction c. herbicide reentry period b. crop rotation d. preplant period 28. Which of these herbicides would you use for broad-spectrum burndown? a. Paraquat b. Treflan c. Simazine d. Diuron 29. Yellow and orange colored herbicides belong to which of these groups? a. FOPS and DIMs b. SUS d. DNAs 30. An example of a synthetic auxin is: a. 2,4-D b. Goal c. Tyroxin d. Sethoxin 31. Imidazolinone (IMI's) are: a. cell membrane disruptors b. photosynthesis inhibitors c. ALS inhibitors d. ACCase inhibitors c. IMIS d. ACCase inhibitor 32. Lipid synthesis inhibitors are also known as: a. ALS inhibitors b. EPSP inhibitor c. DNA's 33. The crop with the most reported cases of herbicide-resistant weeds is: a. corn b. soybean c. cotton d. wheat