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pre-emergent and other weed control advice

Discussion in 'Pesticide & Herbicide Application' started by mrshanno, Jan 24, 2012.

  1. mrshanno

    mrshanno LawnSite Member
    Messages: 16


    I have a lawn of centipede in NC that's about 1.25 years old. One side of the house is relatively weed free, and the other side has weeds such as (I believe) poa annua, florida betony, wild onion, carolina geranium, dandelion? and maybe some more I haven't identified.

    I've been trying to get a healthy stand of grass as a first line of defense...still working on that. I haven't put any herbicides on the grass but am now considering to do so.

    I'd like to start using a pre-emergent. I realize that I probably should have applied some back in October/November. Now I'm planning to maybe use some barricade/prodiamine in late February/early March and then again in Oct/Nov of this year.

    I'd also like to try using a post-emergent herbicide to control the weeds that are there already. I'd appreciate it if you'd entertain a few questions:

    1- Does my plan of using pre-emergents sound ok? I was thinking the barricade/prodiamine since it sounds like it lasts fairly long. I assume they'll have an application rate for centipede on the label?

    2- I was thinking of using barricade 0-0-7 0.38% barricade as I saw it online for $13 for a 20lb granular bag (I prefer granules if possible). Another option I saw but haven't researched were stonewall. Will using the 0-0-7 in Feb/March mess anything up (I didn't think so since it doesn't have Nitrogen)?

    3- Is it ok to spray Image for centipede (atrazine) as a post emergent right now while the centipede is dormant and within a month or so of using a preemergent? or use roundup to spot treat?

    I really appreciate any information or tips you can give!

  2. Dave Stuart

    Dave Stuart LawnSite Member
    Messages: 98

    Posted via Mobile Device

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