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Sample questions
When performing a cut stump treatment for difficult to control species like saltcedar, what is the recommended dilution?
- 10% dilution v/v in water
- 25% dilution v/v in water
- 50% dilution v/v in water or undiluted
- 75% dilution v/v in water
Show answer
The label states for cut stump treatments of difficult species, use a 50% dilution v/v in water or undiluted.🔗 Source
What is the maximum application rate for individual plant treatments (basal bark and cut surface) per acre?
- 2 quarts (2 lb ae of triclopyr) per acre
- 4 quarts (4 lb ae of triclopyr) per acre
- 6 quarts (6 lb ae of triclopyr) per acre
- 8 quarts (8 lb ae of triclopyr) per acre
Show answer
The label specifies a rate of 8 quarts (8 lb ae of triclopyr) per acre for basal bark and cut surface individual plant treatments.🔗 Source
When performing a Conventional Basal Bark treatment on stems less than 6 inches in diameter, how high should the herbicide be sprayed?
- 6 to 10 inches from the ground
- 12 to 15 inches from the ground
- 18 to 24 inches from the ground
- Up to the first branch collar
Show answer
For conventional basal bark, spray the basal parts of brush and tree trunks to a height of 12 to 15 inches from the ground.🔗 Source
For low volume applications, how much crop oil concentrate should be mixed with 4 to 6 gallons of Garlon 4 Ultra to make 100 gallons of spray solution?
- 1 to 2 gallons
- 2 to 3 gallons
- 4 to 5 gallons
- 5 to 6 gallons
Show answer
For low volume applications, mix 4 to 6 gallons of Garlon 4 Ultra and 2 to 3 gallons of crop oil concentrate to make 100 gallons of spray solution.🔗 Source
When treating root suckering species via basal cut stump, how should the herbicide be applied?
- Spray until runoff at the ground line is noticeable
- Apply only to the center of the stump
- Spray until thoroughly wet, but not to the point of runoff
- Apply only to the exposed cambium layer
Show answer
For root suckering species, spray the root collar, exposed roots, and stump sides until thoroughly wet, but not to the point of runoff.🔗 Source
Which of the following is a factor that may reduce the efficacy of the herbicide?
- Applying during winter months
- Applying to stems with smooth young bark
- Treatment during periods of moisture stress
- Applying to stems less than 6 inches in diameter
Show answer
The label notes that control may be reduced with treatment during periods of moisture stress, such as in late summer.🔗 Source
What is a requirement for mixing Garlon 4 Ultra with oil for conventional, low volume, or basal cut stump treatments?
- The mixture must be applied within 24 hours
- The mixture requires vigorous agitation to form an oil solution
- The mixture must be diluted with 50% water
- The mixture must be applied only in winter months
Show answer
The label states that mixing with oil requires vigorous agitation to form an oil solution.🔗 Source
According to the label restrictions, under what condition should you avoid applying the product?
- During periods of high wind
- When temperatures are below freezing
- To wet or saturated bark
- During periods of moisture stress
Show answer
The label explicitly states: 'Do not apply to wet or saturated bark as poor control may result.'🔗 Source
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