As long as the desirable roots on the pine trees are not contacted by the Ferti-lome Brush Killer and Stump Killer, it would not harm them. The active ingredient does not leach into the soil so it should only kill the stumps you treat.
Typically something that is more of a tree rather than a grass/weed requires a more specific chemical than Roundup. You need to use something like Fertilome Brush & Stump Killer or Crossbow and apply it undiluted to the freshly cut stumps/roots and then use it at either full strength or the highest dilution on any shoots that are coming up around the main stump. This will penetrate further into the root system to kill it out. You may have to cut back new shoots from time to time in the beginning as the Crossbow and Stump Killer products will only kill what has already emerged from the ground, not prevent the new seedlings still below the surface from sprouting up. Over time the stump and root system should die out and eventually break down in the soil.
Keep pets out of the area where you plan to spray Ferti-lome Brush Killer and Stump Killer and while you treat, and until the surfaces sprayed are dry. Once dry you and your pet can resume normal activity in the treated area.
Fertilome Brush Killer and Stump Killer can be used at any time unless the temperatures are freezing. If the product is used as intended, the tree should be cut down and applied to the stump to prevent sprouting with a paint brush or sprayer to completely cover the freshly cut surface. Do not reuse the paint brush. Wrap in several layers of newspaper and discard in the trash.
Fertilome Brush Killer and Stump Killer will not affect nearby plants or move through the soil if it is applied directly to cut stumps. If you are applying the product as a spray, then you should be careful to avoid spray or over-spray onto desirable ornamental plants such as shrubs or trees, or their root systems.
According to the manufacturer if you used Fertilome Brush Killer and Stump Killer as directed on the product label, and you did not get any product on the soil, you can replant right away. Fertilome Brush Killer and Stump Killer does persist in the soil so if you did treat the soil the manufacturer recommends that you wait 6-8 months before you replant anything in the area.
Whether the Stump Killer kills the shoots or the trees or both would depend on how its applied and how close they are to each other. If you are not wanting to kill the cherry trees you will want to keep the stump killer outside the dripline of the trees. If you have shoots coming up near the trees root zone you can carefully snip the top of the shoot to expose a raw cut and then paint on or very carefully apply a directed spot spray to the shoot being sure to not get it into the soil if possible. If the shoots are far away from the trees and are not next to any other desireable vegetation then you could use it to treat those areas without issue.
Fertilome Brush Killer and Stump Killer is designed to target woody brush, shrubs, trees and broadleaf weeds. It is not chemically designed to target or harm grasses. That being said, any heavy amount of any herbicide that is used in a concentrated area will always have the potential for harming non target plants directly within the vicinity of the treatment area depending on how and where it is used. If there is grass under the plant you wish to kill, you can try making small cuts into the plant and applying the product at the highest concentration or undiluted with a paint brush on the freshly cut surface. This will reduce the risk of it getting on any other desireable vegetation nearby.
When applying Ferti-lome Brush Killer and Stump Killer as a foliar spray, you will use 4-8 oz in 1 gallon of water at a rate of 1 gallon of solution per 500 square feet, being sure to wet all leaves thoroughly.
Fertilome Brush Killer and Stump Killer is designed to target woody brush, shrubs, trees, and broadleaf weeds. It is not chemically designed to target or harm grasses. A great product to use would be Ferti-lome Over the Top II Weed Killer. It is labeled to kill Bermudagrass and can safely be applied to pears.
Fertilome Brush Killer and Stump Killer is not labeled to control bamboo, so it would not be recommended. You can use Round Up QuickPro at the highest listed usage rate to help eliminate bamboo. You will be required to cut the bamboo down to a short stump and then apply the Round Up QuickPro. It can take several applications to achieve the desired results. We also recommend that you contact your local cooperative extension office and speak to the master gardener on staff for further advice. Bamboo can be VERY difficult to eliminate, but the master gardener may have some helpful tips for you.
We are not aware of a product that would kill violets that would not harm irises if sprayed. We would just recommend care when spraying around desirables or pulling out the violet by hand. Something like Fertilome Brush Killer and Stump Killer could be an option for spot spraying
Ferti-lome Brush Killer and Stump Killer is not labeled for Japanese Knotwood. We recommend that you use a combination of products together to try to control this weed. Using Roundup QuickPro in a tank mix with Crossbow herbicide has shown pretty good results for several of our customers. Japanese Knotweed is definitely a very hardy weed and is tough to control, even with the best products, but this combo should help.
According to the SDS for Ferti-lome Brush Killer and Stump Killer it is an amber liquid, which would be similar to other comparable products that contain the same active ingredient, it does not contain dye.
Ferti-lome Brush Killer and Stump Killer is very effective for stump removal, by applying the product undiluted with a dedicated paint brush and completely covering the freshly cut surface of the stump. If applied as directed on the product label, there should be no ill effect to insects in the area, unless one were to land on the treated area while it was still wet.
