The common lawn pre-emergents (prodiamine, pendimethalin, and dithiopyr) work to help reduce the germination of certain seeds… Mostly grasses and only a handful of broadleaf weeds. The labels will list which weeds are targeted. To prevent more broadleaf weeds, a specialty broadleaf pre emergent like isoxaben is required.
Pre-emergents work by preventing the germination of seeds of the target species. So in order to be effective, a pre emergent needs to be applied BEFORE those seeds germinate. For winter annual weeds (annual weeds that are present in the fall, winter, and spring, like poa annua), a pre emergent needs to be applied in the fall before soil temps fall below 70F. In order to prevent summer annual weeds (like crabgrass), a pre emergent needs to be applied in the spring before soil temps reach 55F. (In very southern areas, timing can be more closely tied with periods of higher moisture AND climbing soil temps. Consult your state extension service for more specific guidance)
Pre emergents will not kill existing weeds. Pre-emergents alone will rarely control a weed problem. Pre-emergents are tools to **reduce** the need for post-emergents. They rarely eliminate the need for post emergents.
The labels of pre emergents have many important instructions and use restrictions. ALWAYS READ THE ENTIRE LABEL. For example, you are limited to 2 applications of each active ingredient per year.
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AlbatrossAndy
Sorry this is at Lowe’s !
DrDuckling951
I guess it’s locally discounted. It’s still full price at my local Lowe’s.
VeryRealHuman23
Dang, that seems like the price was leftover from the winter clearout
Ih8rice
This was my Lowe’s price late last year. Now it’s back to full price again. Luckily I got two bags.
slasher0739
I just grabbed a bag Wednesday, great deal. Probably gonna wait a week or two before putting it down. I should go get a bag of the 30-0-10 tomorrow too.
Status_Discipline_16
Also SE Michigan. The Lowe’s by me has a ton of Lesco clearance left and I’m hoping they do another price reduction. I saw some posts in the fall that some Lowes’s dropped it down to $10.
Fd2devil
I’m looking to fertilize for the first time and this is on sale as well at my Lowe’s in SoCal but it is 0-0-7 is it worth it to put down on my tall fescue?
8 Comments
The common lawn pre-emergents (prodiamine, pendimethalin, and dithiopyr) work to help reduce the germination of certain seeds… Mostly grasses and only a handful of broadleaf weeds. The labels will list which weeds are targeted. To prevent more broadleaf weeds, a specialty broadleaf pre emergent like isoxaben is required.
Pre-emergents work by preventing the germination of seeds of the target species. So in order to be effective, a pre emergent needs to be applied BEFORE those seeds germinate. For winter annual weeds (annual weeds that are present in the fall, winter, and spring, like poa annua), a pre emergent needs to be applied in the fall before soil temps fall below 70F. In order to prevent summer annual weeds (like crabgrass), a pre emergent needs to be applied in the spring before soil temps reach 55F. (In very southern areas, timing can be more closely tied with periods of higher moisture AND climbing soil temps. Consult your state extension service for more specific guidance)
Pre emergents will not kill existing weeds. Pre-emergents alone will rarely control a weed problem. Pre-emergents are tools to **reduce** the need for post-emergents. They rarely eliminate the need for post emergents.
The labels of pre emergents have many important instructions and use restrictions. ALWAYS READ THE ENTIRE LABEL. For example, you are limited to 2 applications of each active ingredient per year.
*I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/lawncare) if you have any questions or concerns.*
Sorry this is at Lowe’s !
I guess it’s locally discounted. It’s still full price at my local Lowe’s.
Dang, that seems like the price was leftover from the winter clearout
This was my Lowe’s price late last year. Now it’s back to full price again. Luckily I got two bags.
I just grabbed a bag Wednesday, great deal. Probably gonna wait a week or two before putting it down. I should go get a bag of the 30-0-10 tomorrow too.
Also SE Michigan. The Lowe’s by me has a ton of Lesco clearance left and I’m hoping they do another price reduction. I saw some posts in the fall that some Lowes’s dropped it down to $10.
I’m looking to fertilize for the first time and this is on sale as well at my Lowe’s in SoCal but it is 0-0-7 is it worth it to put down on my tall fescue?