Podcast
Questions and Answers
What is the primary function of a selective herbicide?
What is the primary function of a selective herbicide?
- To kill or retard the growth of unwanted plants (correct)
- To irrigate the turfgrass
- To fertilize desirable species
- To prune the turfgrass
What can excessive rates of 2,4-D cause to stressed turfgrass?
What can excessive rates of 2,4-D cause to stressed turfgrass?
- Kill all weeds instantly
- Promote healthy growth of turfgrass
- Injure the turfgrass (correct)
- No effect on turfgrass
What is the primary reason for herbicidal selectivity?
What is the primary reason for herbicidal selectivity?
- Environmental factors and application rates
- Herbicide structure and plant features (correct)
- Type of herbicide used
- Genetic changes in plants
What can induced selectivity be achieved through?
What can induced selectivity be achieved through?
What happens when too little herbicide is applied?
What happens when too little herbicide is applied?
What is the dynamic process that involves the interaction of the plant, herbicide, and environment?
What is the dynamic process that involves the interaction of the plant, herbicide, and environment?
What is the effect of applying 0.5 to 1.3 kg/ha of herbicide to the soil before sowing on the protein content of wheat?
What is the effect of applying 0.5 to 1.3 kg/ha of herbicide to the soil before sowing on the protein content of wheat?
Which of the following crops is sensitive to spray drift of 2,4 D?
Which of the following crops is sensitive to spray drift of 2,4 D?
What is the effect of applying amitrole at 10 to 100 ppm to tobacco or wheat?
What is the effect of applying amitrole at 10 to 100 ppm to tobacco or wheat?
What is the term used to describe the ability of a herbicide to kill or inhibit certain weeds without harming the desired crop?
What is the term used to describe the ability of a herbicide to kill or inhibit certain weeds without harming the desired crop?
What is the effect of simazine at 0.06 ppm on maize?
What is the effect of simazine at 0.06 ppm on maize?
Why can soil residues of herbicides affect germination of sensitive crops?
Why can soil residues of herbicides affect germination of sensitive crops?
What is the term for the phenomenon where plant species respond differently to different herbicides?
What is the term for the phenomenon where plant species respond differently to different herbicides?
What is the fundamental principle of herbicide selectivity?
What is the fundamental principle of herbicide selectivity?
What is one of the ways that differential absorption of herbicides can occur?
What is one of the ways that differential absorption of herbicides can occur?
Why are crops covered and grow below the soil limited in their ability to respond to herbicides?
Why are crops covered and grow below the soil limited in their ability to respond to herbicides?
What is a consequence of differential deactivation of the applied herbicide?
What is a consequence of differential deactivation of the applied herbicide?
