Chapter 2: Right of Way - OR Pesticide Safety Exam Questions with correct Answers

Scouting - Answer- Routine observation of the right-of-way to record pertinent information on desired & undesired species Suggested Scouting Times - Answer- Late Spring, Midsummer, Early Fall When scouting - Answer- Identify & record prevalent species on a mile by mile basis & make special note of noxious weed species. Record the approximate height of undesired vegetation. Indicate the presence of any "sensitive areas" that require different management strategies. Thresholds - Answer- Levels of infestation at which control practices are justified Drawbacks of Mechanical Control - Answer- Labor intensive, expensive & dangerous Mowing & brush Cutting methods - Answer- Flail, reel, sickle & rotary mowers Examples of Biological Control - Answer- Insects, animals, or pathogens Living organisms to control undesirable vegetation. Integrated Vegetation Management (IVM) - Answer- Practices relevant to right-of-way may include scouting, making maps, using thresholds & developing a unified program with few side effects Chemical Control - Answer- Includes the application of herbicides & plant growth regulators, both of which are considered to be pesticides. Competition - Answer- The interaction between plants for space, nutrients, moisture & light. Allelopathy - Answer- Occurs when one plant produces chemicals that inhibit the establishment and growth of others. Fire - Answer- Removes undesirable plants from ditch banks, roadsides & waste areas. Scotch Broom - Answer- Flower moth, seed weevil, twig miner Tansy Ragwort - Answer- Flea beetle, Seed fly, Cinnabar moth Dalmatian Toadflax - Answer- Flower beetle, foliage worm, capsule weevil, root-boring moth, root-galling weevil, stemboring weevil