We would first have to know what is causing the black mildew on the Crepe Myrtles. The substance you are seeing could be from insects or a fungus therefore, we would recommend contacting your local Cooperative Extension Office in your county for obtaining a positive id of what is causing the black mildew.
We apologize that Acephate 97UP Insecticide is not labeled for use in irrigation systems.
Yes, Acephate 97UP Insecticide is absorbed by plant roots as a drench and foliage when sprayed directly
Acephate 97UP Insecticide is not labeled to control browntail moths so we don't know if it would be effective, or what use rate would be needed for control. That species seems to be localized only to certain areas of Maine where you are located and are not specifically listed on labels. Maine has multiple websites and resources surrounding browntail both control, local arborist in your area that can make pesticide applications for you, etc. None of the info we looked through indicates a specific insecticide they suggest for it, most of the control is most effective when done manually to burn or remove the webs during winter months.
We did find 2 helpful articles by the Maine Dept of Agriculture, the Browntail Moth Management Resources and Knockout Browntail Brochure Article.
For specific information, please contact 211 Maine directly at 207-874-221, text your zip code to 898-211 or email at [email protected]
No, Acephate 97UP Insecticide is not labeled for bark beetles. The best product for bark beetles is Permethrin SFR 36.8%. The mixing ratio is 1 2/3 fl. oz per gallon of water. It is recommended that you spray the bark on the tree but not to the point of runoff. The biggest key with this insect is timing to ensure the infestation doesn't get out of hand. Once the tree is infested there isn't much you can do other than chop down the tree and burn it to try and prevent the current live ones from getting into any neighboring trees.
Acephate 97UP Insecticide is not intended or formulated to be applied as a paste application therefore would not be recommneded.
You should be mixing Acephate 97UP Insecticide with water in a handpump or backpack sprayer and applied as a spray application. You can review the full product label, including disposal directions, here.
Acephate 97UP Insecticide is not labeled to control brown tail moths. Since brown tail moth is an invasive pest only in a very small portion of the country, we are not aware of any products that actually call it out on the product label (this requires a lengthy testing and review process).
We suggest using a residual insecticide such as Talstar P to treat any infested trees, shrubs, ornamentals, etc (excluding edibles). This has a residual of about 30 days outdoors, and you can use 0.5 - 1.0 oz per gallon of water when spraying for ornamental pests like moths.
Take a moment to review this helpful article by the Main State Government and Forest Service on how to control this pest (including non chemical methods as well as additional FAQs here for more information.
Per the product label, certain ficus plants are known to be sensitive to Acephate 97UP Insecticide. For this reason, we do not recommend using this product for whitefly control on this plant without testing a small area for tolerance first. For small applications, you would use 1/3 tsp per gallon of water or 1 oz per 25 gallons of water applied as a foliar spray for whiteflies.
Imidacloprid is the active ingredient most used to systemically control whitefly on your ficus. You can use Imidacloprid 2F for a soil drench applications for whitefly infestations. It can take a few weeks for the product to translocate through taller plants, and you will most likely continue to see whiteflies in that time period. Application rate for soil drenching is 0.1 - 0.2 oz per foot of shrub height, per shrub in sufficient water volume to thoroughly saturate the root zone beneath the canopy.
While you are waiting on the imidacloprid to translocate you should treat the foliage with a product such as Talstar P or with insectidical soap or insecticidal oil. Talstar P is the most popular choice for foliage application on ficus for white fly.
Please view our How to Apply Systemic Root Drench Video for a quick tutorial on the soil drenching process.
We would suggest contacting the manufactuer of the Acephate 97 UP directly to find out how long you would need to wait and if there are any measures you can take to break the product down in the soil. You can reach United Phosphorous Inc at 800-438-6071.
No, Acephate 97UP Insecticide is only labeled for soil drench treatments when treating for fire or harvester ants. The products that are generally recommended for tent caterpillars and webworms are only foliar treatments, such as Conserve SC.
Per the product label on Acephate 97UP Insecticide the ground application rate for aphids is 0.5 lb per acre. Apply at 3 day spray intervals to maintain control. Spray individual juvenile or non-bearing trees for coverage with total application not to exceed the specified rate in lbs. per acre. Length of residual activity will depend upon spray coverage and the amount of moisture following application.
The application rate and timing with Acephate 97UP Insecticide will vary depending on what pest you need to treat for and where you need to treat. Please consult the product label to find what rate will be appropriate for your needs.
Acephate 97UP Insecticide is not labeled for indoor use.
Acephate 97UP Insecticide can be applied to roses without open flowers as this could cause damage. We recommend reviewing the product label for complete mixing and application instructions.
