Criterion 75 WSP Systemic Insecticide - Questions & Answers

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  • Asked by Clark
    06/26/2011
    Q
    Can Criterion 75 WSP be used to control hemlock woolly adelgid?
    If so, how much of the product would I need to treat an 18" hemlock?
    A
    Yes, you can use Criterion to treat a hemlock for the woolly adelgid.  You should follow the soil drench instructions on the product label.  You should apply 1 pouch or 1.6 oz of criterion for every 24 to 48 inches of trunk diameter.  You should apply the pouch in at least 10 gallons of water to apply the drench.  It really does not matter how much water you use, it just matters how much product you are applying over the area.  The more water you apply it with the deeper the ground will soak it up.  Slightly less than 1 pouch should be used for an 18" wide hemlock.
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    23 of 25 people found this answer helpful.
  • Asked by Simka
    05/17/2011
    Q
    Can I use Mallet 75 WSP for aphid control on trees near the street?
    Can this product be used to make soil injections of the systemic insecticide to control tree aphids that secrete the sticky honey-dew substance? If so how do we apply to the tree? Is it safe for pets or kids roaming near a street tree? Do you recommend any alternative products? Thanks!
    A
    Mallet 75 WSP is no longer available as it has been discontinued by the manufacturer. We recommend Criterion 75 WSP which has the same active ingredient at the same concentration and pretty much the same label.   You can apply Criterion as a soil drench to control aphids but it will take time to see the results as the tree has to trans-locate the product throughout the foliage which can take some time. Immediately before or just after the soil drench you can simply use a strong stream of water from a garden hose to dislodge the aphids from the tree. Using Criterion on this tree will be safe for the children and pets as long as they are out of the area while the soil drench is being applied.
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    9 of 10 people found this answer helpful.
  • Asked by Luis from Miami
    03/18/2014
    Q
    Which provides longer residual control? A soil drench or foliar application?
    I have 300 linear ft of a 4ft tall podocarpus hedge infested with aphids. Which method will provide the longest residual effect and what would be the amount needed for this hedge?
    A

    A soil drench will provide a longer residual as it will soak into the plants inner system and last for typically an entire growing season up to 1 year. Foliar application can be somewhat systemic as well but would need to be reapplied after the weather wears away at it on the surface. Per the product label: For Aphid treatment on Shrubs: Soil Drench: Uniformly apply the dosage in no less than 10 gallons of water per 1000 sq/ft as a drench around the base of the shrub, directed to the root zone. Use 1.6oz (1 packet) Criterion 75 WSP per 24-48 ft of cumulative shrub height. There is not a way to mix up less than what the packet states at a time so unless you have a large tank (at least 100 gallons or so) you would be far better off using a liquid Imidacloprid product rather than the extremely hard to use Criterion.

    We would recommend Adonis 2F instead for the soil treament. To Apply: Most people use a 5 gallon bucket or a large watering can to apply Adonis as a soil drench. You will need 0.1 to 0.2 fl. oz. (3 to 6 mL) of Adonis 2F per foot of shrub height or 0.1 to 0.2 fl oz per inch of trunk diameter for trees. The amount of water that is used will vary depending on soil conditions and volumes that are easy for applicators to use. The minimum amount of water that should be used is 1 pint per foot of shrub height (or inch of trunk diameter for trees) but you may use 1 quart -1 gallon of water per foot of height (or inch of trunk diameter for trees) as well. Denser soils such as clay do not accept water as readily, so the lower volume of water is suggested.  Since sandy soils can accept more water, using the higher volume of water is preferred. After the soil drench has been applied you should water it in with at east 1/2 inch of water. Note: Water simply acts as a carrier and it is important that even distribution of the product is achieved. Thus, more water may be used if the applicator feels runoff will not occur and proper penetration of the root zone is achieved. Insecticides applied to the soil are taken up by the roots and translocated throughout the tree or shrub. Root/soil drenches offer the advantage of requiring no special equipment to apply (other than a bucket or watering can). However, surface layers of organic matter, such as mulch or leaf litter, can bind the insecticide and reduce uptake. Before applying drenches, it is important to remove or pull back any mulch or dead leaves so the insecticide solution is poured directly on the mineral soil. It is also important to keep the soil around the tree or shrub moist for the next 7-10 days after applications to encourage uptake.

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    9 of 10 people found this answer helpful.
  • Asked by Mel from Buckhorn, Ontario
    06/21/2016
    Q
    How do you apply Criterion 75 WSP Systemic Insecticide as a drench of turf for grubs?
    A

    You would need to mix 1.6 oz (1 packet) of  Criterion 75 WSP Systemic Insecticide in a sufficient amount of water to cover 8,250 to 11,000 sq feet. The amount of water used is not very important. The most import thing is that you evenly distribute the 1 packet over the recommended square footage. For optimal control, irrigation or rainfall should also occur within 24 hours after application to move the active ingredient through the thatch.

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    5 of 8 people found this answer helpful.
  • Asked by Harvey from Connecticut
    05/05/2013
    Q
    Can I spray Criterion on my hemlock trees?
    I HAVE A 100 FT ROW 10 FT HIGH HOW SHOULD I MIX IT
    A
    Yes, you can use Criterion to treat Hemlock trees.  You should follow the soil drench instructions on the product label.  You should apply 1 pouch or 1.6 oz of criterion for every 24 to 48 inches of trunk diameter.  You should apply the pouch in at least 10 gallons of water to apply the drench.  It really does not matter how much water you use, it just matters how much product you are applying over the area.  The more water you apply it with the deeper the ground will soak it up.  Slightly less than 1 pouch should be used for an 18" wide hemlock.
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    5 of 6 people found this answer helpful.
  • Asked by Steve from St. Maries, Idaho
    06/13/2013
    Q
    Looking for systemic insecticide to use on Maple and Conifer trees infected with aphids
    We have 15 trees of various size diameter and are concerned about the cost to treat them all.
    A
    You could Certainly use Criterion 75 WSP to treat Aphids in Maple and Conifer trees. Please refer to the product label for application instructions
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    3 of 4 people found this answer helpful.
  • Asked by Steve from Wabash,indiana
    05/09/2014
    Q
    What is the best product you carry for emerald ash borer?
    I have been using your Criterion 75 WSP on my ash trees as a drench. Showing mixed results.
    A
    Please see our Emerald Ash Borer treatment page. Criterion 75 would still be a top product to use. The down fall is that when treating Emerald Ash Borer, you have to retreat every year.
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    3 of 3 people found this answer helpful.
  • Asked by Luke
    09/30/2010
    Q
    Is Criterion 75 WSp the same as Crosscheck insecticide?
    A
    No. Criterion 75 WSP has imidacloprid as the active ingredient and works as a systemic insecticide. Crosscheck contains bifenthrin as the active ingredient and contains a fertilizer.
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    3 of 5 people found this answer helpful.
  • Asked by Pam from Honeybrook, Pa
    06/25/2013
    Q
    Can Criterion 75 WSP Systemic Insecticide be used on hardy hibiscus and if so what is the mixing ratio?
    A
    Criterion is not labeled for use on hibiscus. We recommend using Bonide Systemic Insect Control. Using a Systemic can take several weeks to trans-locate through trees. The exact amount of time depends on the species of tree, the size of the tree, how much water the tree is getting and of course the health of the tree. It is recommended that while you are waiting for the systemic product to trans-locate that you use a different product for an immediate kill of the pest insects such as Horticultural oil, Insecticidal soap or Talstar P. Systemic products last for 3-4 months in most cases.
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    2 of 2 people found this answer helpful.
  • Asked by David from Tulsa, Ok
    10/30/2014
    Q
    What is meant by "Cumulative shrub height" on the Criterion 75 WSP Systemic Insecticide label?
    A

    Cumulative feet of shrub height is the total height of all shrubs to be treated. This is determined by estimating the height of all individual shrubs in feet and totaling the sum. With this information, you can correctly mix the appropriate amount of Merit needed for the shrub or foliage plant application.

    Example: If you have two shrubs that are 2 feet in height and one shrub that is 5 feet in height you would have 9 feet of cumulative shrub height. Measure the Criterion 75 WSP according to the instructions above and apply to the individual shrub according to its own height. For instance if you decided to use 1 gallon of water per foot of shrub height, the shrub that is 5 feet in height would receive 5 gallons of diluted Criterion 75 WSP solution and the shrubs that were only 2 feet in height would receive 2 gallons each of the diluted Criterion 75 WSP solution.

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    2 of 4 people found this answer helpful.
  • Asked by Lynn from Florida
    04/30/2013
    Q
    How do I mix Criterion 75 WSP in my hose-end sprayer?
    I would like to treat my entire yard .. grass and shrubs.. and I would like to use a hose end sprayer that measures by tbsp per gallon of water... it looks like I would need to use 1 full packet to cover all the grass and shrubs.. but what would I set the hose end sprayer to..
    A
    Criterion 75 WSP cannot be used in a hose end sprayer as it is in pre-measured packets and must be pre-mixed in large batches. Instead you should consider using a liquid such as Dominion 2L which will allow you to use smaller amounts to treat your lawn and shrubs in smaller amounts. You will use 0.46 to 0.6 fl. oz per 1,000 sq ft for broadcast applications in whatever amount of water it takes you to cover that area. (Water only acts as a carrier so the exact amount of water used is not important.
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    2 of 3 people found this answer helpful.
  • Asked by Ingrid from London, Uk
    10/25/2018
    Q
    Is Criterion 75 WSP Systemic Insecticide a powder mixed with water for using?
    In what quantities?
    A

    Criterion 75 WSP Systemic Insecticide does need to be mixed with water.

    The coverage area of 1 envelope of Criterion 75 WSP will depend entirely on the type of pest you are treating and the area that is being treated.  Here are some general guidelines:

    • There are 4 x 1.6 oz water soluble packets in each envelope.
    • For Turf-grass: 1.6 oz. (1 packet) per 8,250 sq. ft. to 11,000 sq. ft.
    • For Foliar applications of Trees & Shrubs: 1.6 oz. (1 packet) per 300 gallons of water
    • For Systemic applications of Trees: 1.6 oz. (1 packet) per 24 - 48 cumulative inches Trunk Diameter
    • For Systemic applications of Shrubs: 1.6 oz. (1 packet) per 24 - 48 cumulative feet Shrub Height
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    2 of 3 people found this answer helpful.
  • Asked by Marc from Boca Raton, Fl
    08/25/2011
    Q
    What is the mix rate of Criterion for Ficus?
    I have a very full 6 foot ficus shrub comprised of about 30 plants. How would I apply the product to treat a thrip infestation. Specifically, how much product in how much water to drench the roots?
    A
    For systemic root drench applications of shrubs: 1.6 (1 packet) per 24-48 cumulative feet shrub height. The minimum amount of water that should be used is 1 pint Criterion  per foot of shrub height but you may use 1 quart -1 gallon of water per foot of height as well. Denser soils such as clay do not accept water as readily, so the lower volume of water is suggested.  Since sandy soils can accept more water, using the higher volume of water is preferred.
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    1 of 4 people found this answer helpful.
  • Asked by Price from Eagle Point, Or
    08/26/2011
    Q
    Will Criterion 75 WSP Systemic Insecticide help control tent caterpillars in my large American Elm trees?
    Will this product help control tent caterpillars in my large American Elm trees?
    A
    Criterion 75 WSP is great for preventing tent caterpillars in the spring when they are not as active.  You should use Criterion as a soil drench around the root system of the tree.  For issues you have right now, you should use Talstar from a powered sprayer directed at the tree limbs and the webbing from the tent caterpillars.
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    1 of 2 people found this answer helpful.
  • Asked by Rusty from Fresno Ca
    06/26/2014
    Q
    Criterion 75 WSP Systemic Insecticide kill ants?
    A
    Criterion 75 WSP Systemic Insecticide is not labeled for ants. It works more for kicking sucking insects off trees and shrubs. Please visit out Ant Control Page.
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    1 of 2 people found this answer helpful.
  • Asked by Bryan from Ohio
    07/06/2016
    Q
    Can Criterion 75 WSP Systemic Insecticide be used to treat grubs?
    A

    Criterion 75 WSP Systemic Insecticide can be used for grub control following the instructions on the product label: 1.6 oz (1 packet) per 8,250 to 11,000 sq ft in sufficient water to uniformly and accurately cover the area being treated.

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    1 of 4 people found this answer helpful.
  • Asked by Dennis from Linesville, Pa.
    07/08/2014
    Q
    Can I use Criterion 75 WSP safely for fire ant mounds at the base of my plum trees?
    Will the fruit be affected? Is there a safer, more organic method or insecticide available?
    A
    Criterion 75 WSP is not labeled for fire ants.  It is a systemic and would be absorbed by the roots of the plum tree and is not labeled to be applied to this type of tree.  For Fire Ants we would recommend the Extinguish Fire Ant Bait. Extinguish is a food product that the ants will be attracted to.  Although the label states to not use it near fruit bearing trees, you can apply it away from the trees in the yard and when the fire ants are out foraging for food they will find the extinguish granules and take them back to the nest
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    1 of 1 people found this answer helpful.
  • Asked by Ij from Arvada, Colorado
    05/09/2017
    Q
    Can I use Criterion 75 WSP for kermes scale?
    A

    While the Criterion 75 WSP is not labeled specifically for kermes scale, it is labeled for soft scale species in general and should yield good results especially if caught in the early life stages of the scale. For trees, use 1 packet per 24-48 inches of trunk diameter in no less than 10 gallons of water per 1000 sq/ft and apply uniformly as a drench around the base of the tree and directed into the root zone. 

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    1 of 1 people found this answer helpful.
  • Asked by Fred from Grantville
    11/15/2016
    Q
    Do you sell Xytect for ash borer?
    A

    We apologize, we do not sell Xytect. Criterion WSP is the most popular choice for emerald ash borers.  You need 1.4 level teaspoons per inch of diameter. This is the highest rate and should be used for all boring insects. The amount of water that is used will vary depending on soil conditions and volumes that are easy for applicators to use. The minimum amount of water that should be used is 1 pint per inch of tree diameter but you may use 1 quart -1 gallon of water per inch as well. Denser soils such as clay do not accept water as readily, so the lower volume of water is suggested.  Since sandy soils can accept more water, using the higher volume of water is preferred. Treatments should begin in May or June and should be done every year to protect trees from the EAB.

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    1 of 1 people found this answer helpful.
  • Asked by Bette from North Fort Myers
    04/29/2014
    Q
    Is this a white powder?
    I'm looking for a white powder form of Imidacloprid that is water-soluble, and reasonably priced. Would this be my best bet?
    A
    The Criterion 75 WSP Systemic Insecticide is a light brown to tannish powder that has imidacloprid as its active ingredient. Keep in mind that the appearance of the product is not as important as verifying the product you need is labeled for the problem you have.
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    1 of 1 people found this answer helpful.
Displaying 1 to 20 (of 42 questions)