Used Snapshot pre-emergent. Perennials are dying.
Lynn in Parkton, Maryland
5 years ago
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hydrangeahead Central WI 4b
5 years agodavidrt28 (zone 7)
5 years agolast modified: 5 years agoRelated Discussions
Accelerating planting time after pre-emergent
Comments (5)The spreading of a good quality compost is always recommended to inject organic matter into the soil which, when carried out as a spring program, will encourage moisture retention, worm production, and good overall soil which grass seed will grow much better. Pre-emergent is, what it means....a means to prevent the germination of seeds which come from weeds, et al, It is usually applied at a specified time when the weeds are going to seed. Pre-emergent then is a weed seed killer. It is therefore, also a killer of any kind of seed---including grass. I believe a minimum time of interval between application of the pre-emergent and seeding a lawn, is about 6 weeks. This is the reason why the pre-emergent is applied when the weeds are sprouting their seeds which will deny germination of the vast majority ---but not all--of them. The company that did the application of the pre-emergent should have known when you can safely carry out a seeding program. Give them a call....See MorePre Emergent Plan - Help
Comments (15)>>I've been doing some research on pre emergents and I've settled on Tenacity, unless anybody has a good reason not to use it. If the expense doesn't bother you, go for it. Not that it's really all that expensive, I'm still using the small bottle I bought three years ago. It should last another five, and doesn't seem to weaken with age so far. It's a very short-term pre-emergent, however! One month. After that, reapplication will be required. Since your new sprouts will be too new for any other pre-emergent that touches the Poa genus, Tenacity would be your only choice. >>The only thing I don't like about it is that it's not granular. I'm worried about applying it evenly. I don't want to overapply or miss areas. Any advice or tips on this? (Or perhaps an alternative product with the same traits that does come as a granular) Tenacity is currently rather unique, although rumor has it that there are others in the pipeline (not yet available to us common folk). To my knowledge, there is no solid form as of yet. Great care when spraying is your only choice here. If you miss, you miss--Tenacity is also good as a post-emergent, so you always have the option and opportunity to kill it after it sprouts. I have the best luck killing P, annua and P. trivialis with Tenacity either moderately late in fall (October for me) or moderately late in spring (May). It may not actually kill it outright, but it weakens it very, very badly just before conditions get bad (winter or summer). That takes it right out....See MorePre emergent recommendation for SF Bay?
Comments (2)You need to understand that pre-emergent herbicides have NO effect on any existing weeds. These will either need to be removed manually or treated with a post emergent herbicide like RoundUp or any lawn weed killer. Pre-emergents only prevent seeds from germinating or fully developing after germination. And different pre-emergents typically address different types of plant seeds. One of the most effective pre-emergents for crabgrass control are herbicides that contain pendimethalin as the active ingredient. Or look for dithiopyr (Dimension) which offers both pre-emergent and some post emergent crabgrass and broadleaved weed control. Trifluralin is also registered for Bermuda grass, so that is an option as well. Follow directions on the label as to rates and frequency of applications. You may not have sufficient time for three applications before you plan to replant but the good thing about pre-emergents is they will have no impact on fully developed plants you will be including in September. So completely safe (except the dithiopyr) to apply after planting or later in fall or next spring....See MorePre-emergent rate of application (Prodiamine)??
Comments (2)On the first question, you are right - limit it to the lower number so as not to harm the KBG & rye. On the second question, some people like to apply Prodiamine twice a year. Once in early spring & again in fall. If you choose to apply only one time a year, you can use the 4.8 lbs regimen in one application....See Moreken_adrian Adrian MI cold Z5
5 years agomxk3 z5b_MI
5 years agoLynn in Parkton, Maryland
5 years agoGarden Jenny llc
3 years agodavidrt28 (zone 7)
3 years agolast modified: 3 years ago
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