TriStar 8.5 SL Insecticide - Questions & Answers

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  • Asked by Katherine from Grosse Pointe Shores, Mi
    02/02/2014
    Q
    What is the application rate for mealy bugs on orchids when using TriStar?
    I have a stubborn mealy bug infestation on my small collection of orchids. How much should I use if I use a gallon sprayer? Can that amount be measured accurately with the measuring spout? Should I repeat the application, and if so, after what period of time?
    A
    When treating for mealy bugs with the TriStar you will use 7.5 ml (0.25oz, 1.5 tsp) per 3 gallons of water for effective control. The Tristar bottle will measure as low as 5 ml in the built in measuring reservoir. It is suggested that you mix a surfactant with the TriStar when treating for mealybugs for better control. You can use the Non-Ionic surfactant we carry at the rate of 1-2 teaspoons per gallon of water. Do not make more than 4 applications per year. Do not reapply more than once every 7 days. To determine if application is necessary, monitor pest densities.
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    9 of 9 people found this answer helpful.
  • Asked by Niki from Oh
    03/27/2014
    Q
    In preventing thrips in a greenhouse, would TriStar 8.5 SL be best used as a spray or drench?
    A

    TriStar 8.5 SL has mulitple modes of action, on contact, systemically, and through translaminar activity to control a wide variety of insects including thrips. The best treatment method would be to use a foliar spray. The label states that there should not be a soil drench application with the product.

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    5 of 5 people found this answer helpful.
  • Asked by Donna from Downey
    07/30/2017
    Q
    How much Tristar 8.5 SL should I use to treat Japanese beetles in my lawn?
    I would like to know how many teaspoons or tablespoons per gallon of water I should use.
    A

    You will use 0.125-0.253 fl. oz. of TriStar 8.5 SL per gallon of water for beetles, or 0.75-1.5 teaspoons.

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    2 of 3 people found this answer helpful.
  • Asked by Richard from Coventry
    09/02/2015
    Q
    Are there any heat restrictions on TriStar 8.5 SL?
    A

    TriStar 8.5 SL  like with most insecticides should be applied in the cooler times of the day. As far as shelf life, be sure to store in a cool dry area where temps do not freeze or go above 95 degrees. 

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    2 of 2 people found this answer helpful.
  • Asked by Joe from California
    06/09/2017
    Q
    I'm trying to get rid of root aphids and fungus gnat larvae in potted plants. How much TriStar 8.5 SL should I use?
    Would it still kill the aphids and gnat larvae in the pot if applied as a foliar spray? What rate do I use for foliar spraying?
    A

    Per the TriStar 8.5 SL instructions on the product label: For Aphids, use 0.04 per gallon of water.  Apply as a full coverage foliar spray with a nonionic spreader-sticker adjuvant. When mixing with surfactant treat a small area first to make sure the surfactant does not cause phytotoxicity. For Fungus gnat larvae, use 0.085 to 0.165 fl oz per gallon, ase the higher rate when insect pressure is high. Apply as a directed spray to thoroughly wet the upper 1/2 to 1 inch of soil media.

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    1 of 2 people found this answer helpful.
  • Asked by Dean from Charlotte Hall, Md
    09/01/2014
    Q
    How much TriStar 8.5 SL would you use in a 2 gallon sprayer for Aphid control on Crepe Myrtle?
    A
    TriStar 8.5 SL is labeled to be mixed at 4 fluid ounces per 100 gallons of water. There is a conversion chart on page 7 for smaller tank sizes.
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    1 of 2 people found this answer helpful.
  • Asked by Jean from Fairfield
    05/03/2019
    Q
    Is TriStar 8.5 SL harmful to wild birds?
    A

    TriStar 8.5 SL is safe when used as directed.  We would recommend applying when they are not in the area and would not be for at least a few hours after so evening is good.

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    1 of 1 people found this answer helpful.
  • Asked by Jennifer from Sevierville , Tn
    08/24/2020
    Q
    Is TriStar 8.5 SL Insecticide safe for succulents?
    I have stubborn Mealybugs in my succulents. I’ve used the Ortho Fruit , Flower and Vegetable product and it seemed to work . But I think there may be something in the inert ingredients of that product that is a little harsh on my succulents. I’d like to try this product since you mix just a small amount with water . Maybe it has less harsh inert ingredients. Acetamiprid is the best ingredient to kill Mealybugs based on my research because it also kills the eggs . If this product isn’t safe for succulents, which acetamiprid product do you recommend? Thank you !
    A
    Unfortunately none of the acetamiprid products that we carry are labeled for succulents.  You could potentially use

    Safari 20SG for containerized plants in a greenhouse to treat sucking pests like mealybugs.  We recommend contacting a Master Gardener in your area for recommendations on succulents since they may require different treatment than other ornamentals.

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  • Asked by Delmas from Timberville, Va
    12/16/2019
    Q
    Can I use TriStar 8.5 SL to control armoured scale on Christmas trees?
    It is cryptomeria scale on 10,000 canaan fir trees.
    A

    TriStar 8.5 SL is not labeled for use on Christmas trees, so we would not recommend this application. Safari 20SG is labeled for use on Christmas trees (including fir) for cryptomeria scale. You will use ¼ – ½ lb (4-8 oz) per 100 gallons of water and apply as a foliar spray, or use 0.2 – 0.4 oz per 1000 sq ft. For small areas, use ½ – 1 tsp per gallon of water. Make first application just before pest populations reach an economic threshold. If necessary, make a second application after 14-21 days. Tank mixing with a surfactant may improve control of scale. You could also use a horticultural oil or dormant spray such as Brandt TriTek for a foliar spray.

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  • Asked by Al from Eau Claire, Wi
    07/10/2013
    Q
    Correction to previous question
    that was 12 OZ - not 12 GAL - per thousand square ft. (conflicting data on TruGreen's work order slip)
    A
    Can you please let us know what question you previously submitted that this is in reference to? There is not enough data in this for us to pull up the other question and accurately answer you. Thank you
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  • Asked by Matt from Or
    05/31/2017
    Q
    Can TriStar 8.5 SL be used in a ULV fogger?
    A

    TriStar 8.5 SL is not labeled for fogging applications. Please take a look at our selection of ULV fogging concentrates here

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  • Asked by Jeff from Altoona
    02/28/2019
    Q
    Can TriStar 8.5 SL be used as a soil drench?
    A

    According to the TriStar 8.5 SL product label, this product should not be applied as a soil drench. 

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  • Asked by Marc
    06/03/2019
    Q
    TriStar 8.5 SL rate for Boxwood leafminer?
    A

    TriStar 8.5 SL is mixed at the rate of 21.0 – 25.3 oz per 100 gallons of water per the product label.  This breaks down to approx 0.21 to 0.253 oz per gallon of water.

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  • Asked by Ann from Jupiter Fl
    12/05/2013
    Q
    What is the rate for 1/100?
    My dosatron is set for 1/100 and I wanted to know how much Tristar I should use.
    A
    The amount of TriStar diluted with water would depend on what you are treating for. Below is the product label for more specific mixing instructions. Please let us know if you need anything else.
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    0 of 1 people found this answer helpful.
Displaying 1 to 14 (of 14 questions)