heathcoerracin Posted September 29, 2006 Report Share Posted September 29, 2006 im planting the rest of my food plots tommorow and they have a few weeds on them. I was wondering if i sprayed roundup on the plot then threw out the grass seed would that kill or effect the seeds growth? Thanks Quote Link to comment Share on other sites More sharing options...
OJR Posted September 29, 2006 Report Share Posted September 29, 2006 Re: need some info... Yes it will! You will need to wait before you plant anything if you use Roundup! If you use something that is not so potent, then you could plant right away! Quote Link to comment Share on other sites More sharing options...
heathcoerracin Posted September 29, 2006 Author Report Share Posted September 29, 2006 Re: need some info... [ QUOTE ] Yes it will! You will need to wait before you plant anything if you use Roundup! If you use something that is not so potent, then you could plant right away! [/ QUOTE ] any ideas on something not as strong??? Quote Link to comment Share on other sites More sharing options...
OJR Posted September 29, 2006 Report Share Posted September 29, 2006 Re: need some info... Not off hand! Check with the garden section at Wal-Mart or some nursery! Quote Link to comment Share on other sites More sharing options...
dogdoc Posted September 29, 2006 Report Share Posted September 29, 2006 Re: need some info... RoundUp is a post emergent herbicide--it actually has no affect of pre-emergence so technically it will not harm the seeds or prevent seeds from germinating. I would probably still want to wait 24 hours though before broadcasting--but I really think if you sprayed your roundup and waited a few hours for it to dry then broadcasted your seed you would be just fine. If you just have a few weeds then I'd just just spot spray the weeds--wait a about an hour for the roundup to dry then broadcast. Now if you're planning on discing the plot then you need 72 hours after spraying for the roundup to reach the roots of the weeds you are trying to kill. If you spray then immediately disc you might still get some weed regeneration from the roots. todd Quote Link to comment Share on other sites More sharing options...
wtnhunt Posted September 30, 2006 Report Share Posted September 30, 2006 Re: need some info... [ QUOTE ] RoundUp is a post emergent herbicide--it actually has no affect of pre-emergence so technically it will not harm the seeds or prevent seeds from germinating. [/ QUOTE ] While I would normally never go against what Todd says, I do question this due to first hand experience with planting too soon after spraying. The labelled directions on the brand of glyphosate I use suggest not planting within I think it is 3 days to a week depending on what you are planting. I have tried planting stuff in the garden one season too soon after spraying roundup that most of my plants ended up dying, and the only thing that could have led to them not making it in my opinion was the roundup. I lost my tomato and pepper plants and my beans and peas never came up right. Think I had planted like 3 days after spraying. Maybe it was something else that caused them to die and to not germinate, but we did not have any frosts or any other reason for the plants to die. I now wait a minimum of a week. Quote Link to comment Share on other sites More sharing options...
LETMGROW Posted September 30, 2006 Report Share Posted September 30, 2006 Re: need some info... Todd's information is correct, however, "IF" you sprayed an excess of Roundup which hit the soil and the soil never dried " MAYBE " it could affect new growth. Like anything, there can be exceptions to every rule, but for the most part 3 days should be sufficient. I like to have at least one or two hot days between spraying and planting to be sure the herbicide has dried. Unless you are on a stringent timetable why not wait anyway? That way you can be sure. Quote Link to comment Share on other sites More sharing options...
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