The product label for the Ultra-Pure Oil Horticultural Insecticide, Miticide and Fungicide will give rates per Acre since it is designed for commercial applications. If you are treating a smaller area, than you would need to calculate the correct amount of concentrate for the area that you need to treat, and then use sufficient water for your application. If you only have a few trees to treat, we do sell several other horticultural oils that may be easier to measure. Monterey Horticultural Oil comes in several different sizes, and you would use 2.5 to 5 ounces per gallon of water to treat Apples.
Unfortunately we cannot give advice on Ultra-Pure Oil or any other product on cannabis unless it is in a product label. We recommend you check with your local department of agriculture to see if they have released of a list products that can now be used on cannabis. We do know that state of Washington has compiled a list for cannabis and other states are starting to do so as well.
If you are using another fungicide that’s absorbed foliarly and it’s labeled to treat for diseases other than what Ultra-Pure Horticultural Insecticide, Miticide and Fungicide is labeled for, it would be fine to use both. The Ultra-Pure Oil is mostly used to smother anything on foliage for labeled insects, and mites so we would recommend to use the other fungicide first and then make the application with Ultra-Pure Oil Horticultural Insecticide, Miticide and Fungicide a day later.
From your description it sounds like your pecan tree may be quite ill. When several species of insects have taken over a tree or plant, that is usually a sign of distress. We highly recommend you seek guidance from your local cooperative extension office to help you definitively identify each pest to insure the correct treatment is being used. We will recommend horticultural oil for the scale. We apologize we could not be more helpful at this time!
Ultra-Pure Oil Horticultural Insecticide, Miticide and Fungicide will tree for Wooly Adelgid. You want to mix 1-2.5 oz per gallon water.
Ultra-Pure Oil Horticultural Insecticide, Miticide and Fungicide is not labeled for use on established turf lawns - just for use on ornamentals, trees, shrubs, and crops. Please find our fungicide selections here.
Yes, when applying Ultra-Pure Oil Horticultural Insecticide, Miticide and Fungicide the manufacturer states to use equipment with agitator as directed on the product label for applications to the following: Greenhouses, Nurseries, Container Gardens, Bedding Plants, Christmas Tree Farms, Ornamental Trees and Shrubs, Flowering and Foliage Plants, Field Crops, Fruit and Nut Crops, Vegetables and Herbs.
Ultra-Pure Oil Horticultural Insecticide, Miticide and Fungicide is labeled for use on plants in greenhouses. However, dahlias are not listed specifically on the product label. For this reason, we recommend testing a few plants before treating all of them since the flowers may be sensitive to this product.
The dilution rate for most flowers on the label is around 1 gallon of Ultra-Pure per 100 gallons of water, which breaks down to 1.28 oz per gallon of water.
You may consider Safari 20SG for whitefly control on flowering plants in greenhouses. For mite control, you may consider miticides such as Sultan Miticide or a total release product such as Beethoven TR.