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Sample questions
Which of the following is a stated restriction regarding the use of Gemstar LC?
- Do not use on Bacillus thuringiensis (Bt) transgenic crop varieties unless prohibited due to refuge requirements
- Do not use on any organic production sites
- Do not apply via aerial spray in windy conditions
- Do not use on any vegetable crops containing nightshade
Show answer
The restrictions section states not to use the product on Bt transgenic crop varieties unless prohibited due to refuge requirements.🔗 Source
What is the Re-entry Interval (REI) for Gemstar LC?
- 4 hours
- 12 hours
- 24 hours
- 48 hours
Show answer
The label specifies a re-entry interval (rei_hours) of 4.🔗 Source
When using Gemstar LC for chemigation, how should the product be applied?
- Inject continuously over the course of irrigation
- Apply as a single heavy dose at the start of irrigation
- Apply only during the final stage of irrigation
- Mix with water and spray manually after irrigation
Show answer
The mixing notes state that for chemigation, you should inject continuously over the course of irrigation.🔗 Source
Under which of the following conditions should Gemstar LC be applied for effective control?
- When larvae are young (early instars) and actively feeding
- Only after extensive crop damage has occurred
- During the late instar stage of larval development
- When larvae are dormant or not feeding
Show answer
The label specifies that for effective control, it should be applied when larvae are young (early instars) and actively feeding.🔗 Source
Which piece of Personal Protective Equipment (PPE) is required for applicators and handlers of Gemstar LC?
- Waterproof gloves, long-sleeved shirt, long pants, and shoes plus socks
- Chemical-resistant apron and face shield
- Nitrile gloves and safety goggles only
- Full-body Tyvek suit and rubber boots
Show answer
The PPE section requires waterproof gloves, long-sleeved shirt, long pants, and shoes plus socks.🔗 Source
When preparing a spray mix, what is the recommended water pH range for Gemstar LC?
- Between 6 and 8
- Exactly 7.0 only
- Between 4 and 6
- Between 8 and 10
Show answer
The mixing instructions state that water pH should be between 6 and 8.🔗 Source
Which of the following pest groups is Gemstar LC specifically designed to control?
- Larvae of corn earworm, old world bollworm, and tobacco budworm
- Adult moths of corn earworm and tobacco budworm
- Aphids, mites, and adult bollworms
- Egg stages of cotton bollworm and tomato fruitworm
Show answer
The label states the product is designed to control the larvae of corn earworm, old world bollworm, and tobacco budworm.🔗 Source
According to the label, what is the application rate for Gemstar LC per acre?
- 4-10 fl. oz. per acre
- 10-20 fl. oz. per acre
- 2-4 fl. oz. per acre
- 1-5 fl. oz. per acre
Show answer
The application rate listed in the label is 4-10 fl. oz. per acre.🔗 Source
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