Grass Out Max (Clethodim Herbicide) is a great choice for killing annual blue grass (poa annua) in ornamental beds as long as the non-target plants are well established. Per the product label, be sure to use a non-ionic surfactant with at least 80% active ingredient, although crop oil surfactants are not recommended around flowers to prevent sensitivity. Please review the product label before application. If you are only experiencing problems in planters, then you may need to examine whether weeds are coming up from the ground below them, in which case you should move and/or add a barrier under or inside the planters. Transplanting or changing the potting soil would also ensure no new growth of unwanted plants.
Grass Out Max (Clethodim Herbicide) would not harm ground covers like Mondograss and Euonymous when used as directed on the product label. It is not labeled to kill zoysiagrass so we cannot recommend it for this use. Typically a glyphosate based product would be used to control it in these areas with care being taken to avoid contact with desirables.
Grass Out Max is a non selective grass killer, meaning it will kill your KGB as well. A better option would be use Q4 for everything but the quackgrass and the poa annua. Unfortunately there is not an herbicide that would kill the quackgrass nor poa annua without damage cool season turf, such as Kentucky Bluegrass. If only a small area of the lawn is affected by the outbreak, spray only the affected area with RoundUp Quick Pro. If the problem amounts to no more than a few spears of quackgrass in an area of your lawn, paint the individual spears with diluted RoundUp QuickPro. Becareful to avoid getting the product on desirable grass. If most of the lawn has been affected by quackgrass, the only sure fire way to get rid of it is to spray the entire lawn with Roundup. Spray when the lawn is growing actively, preferably in the spring. The treatment will kill the lawn grass as well as the quackgrass. After about two weeks, you may begin the replanting.
We do not recommend storing Grass Out Max or any other insecticide where there are extreme temperatures. Store products in cool, dry place for the most effective results. If it hs been frozen, we suggest getting fresh product.
Grass Out Max is a grass killer that will kill the centipede. Certainty Herbicide could be used for suppression or partial control of quackgrass in centipede.
Per the product label, Grass Out Max is safe to apply around vinca.
Grass Out Max (Clethodim Herbicide) is labeled to control field sandbur aka sandspurs in ornamental areas only.
Grass Out Max (Clethodim Herbicide) is safe to use around animals if applied according to the instructions on the product label. Animals must be kept out of the treated area during application and until everything is dry.
You will need to use 0.2-0.4 fl oz of Grass Out per 1,000 sq ft area. Like most other herbicides the exact amount of water you use is not important, it is just important to make sure you get the specified amount of product over a 1,000 sq ft area. For ease of mixing/measuring you can add the specified amount of product to 1 gallon of water to apply to a 1,000 sq ft area.
The Grass Out Max is labeled for controlling Tall Fescue and would be safe sprayed over the top of broadleaf plants such as clover. While the product is not an insecticide, it would be recommended to avoid spraying when bees are active or foraging, such as very early in the morning or very late at night. We would also recommend not applying when clover is in bloom as this is when they would be most active.
Grass Out Max (Clethodim Herbicide) is not labeled to be used in home lawns so we would not recommend using it there nor are there directions for this use. With glyphosate based products you can reseed after 2 weeks from the last application.
Grass Out Max is safe to use in jasmine ground cover and will kill grassy weeds. It will not kill your zoysia grass in the lawn unless you spray it directly.
Grass Out Max is a grass killer and would likely kill the bermuda along with the poa annua. To target poa anuua in bermuda, you may want to consider using Certainty Herbicide instead as it will not harm the bermuda grass.
Grass Out Max is not labeled as safe to be used on Centipede lawns nor is it labeled to target torpedograss. Bonide Grass Beater Over the Top Grass Killer, however, is labeled for use on centipedegrass and will target bermuda and torpedograss, as well as many other grass species.
GrassOut Max should be applied where and when the bees are not foraging.
Grass Out Max would not harm clover but it is currently only labelled for use on clover when used in the states of Idaho, Oregon, and Washington. Arrest Max contains the same active ingredient but does not have any state restrictions for clover.
Grass Out Max (Clethodim Herbicide) lists asparagus fern as a tolerant species on the product label. To see whether it may be safe for other species, we suggest contacting the manufacturer directly to see what they recommend. You can reach Agrisel at 877-247-4735.
Grass Out Max (Clethodim Herbicide) is not labelled for Canadian & Bull Thistle. Tenacity Herbicide is labelled to treat Canadian Thistle, but doe does not list Bull Thistle. Herbicides containing glyphosate like Roundup QuickPro can effectively control bull thistle. Mowing may need to be repeated throughout the season to prevent reflowering
Grass Out Max will not kill sedge. We would recommend using a product like Dismiss instead.
