Sempervivum and Jovibarba forum: How to kill off Slugs & Snails (really!!) without pesticides

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Name: Kate
NEKingdom of Vermont (Zone 3a)
[url=www.LabourofLoveLandscaping.co
Charter ATP Member I was one of the first 300 contributors to the plant database! Plant and/or Seed Trader Sempervivums Tropicals Garden Ideas: Level 1
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LabourofLove
Aug 16, 2011 5:15 PM CST
Believe it or not, this comes from the University of Hawaii and was discovered by accident while trying to do something else entirely.

COFFEE KILLS SLUGS & SNAILS. Make very strong caffeinated coffee. Mix half and half with water and put into a trigger or compressed-air sprayer. Spray on plants and the ground that snails & slugs travel on. As they move over the treated areas, they take up the caffeine through their pseudopod (foot) and it gives them heart attacks in 72 hours.

Cheap coffee works as well as the more expensive sort. I use espresso because it's more finely ground (works better in my machine). I also run the water through the grounds more than once to extract as much as possible - I'm filling a 4 gallon backpack sprayer.

My snail problem is worse in my daylily field than anywhere else, but the Hostas look better this year for this solution, too. Cheers for an elegant and simple solution to nasty critters.
Kate Kennedy Butler
Glover, Vermont

life without music would be a mistake Nietzsche
[Last edited by valleylynn - Aug 16, 2011 3:03 PM (+)]
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Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
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valleylynn
Aug 16, 2011 8:08 PM CST

Moderator

Wow, Kate I had not heard about that before. That is amazing. And thank you for starting a new thread with that tip, that way we won't lose it.
Name: Chris
Ripon, Wisconsin
Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Sages Forum moderator Garden Ideas: Master Level Plant Database Moderator
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goldfinch4
Aug 19, 2011 6:55 AM CST

Moderator

Kate, thanks for that great tip! You should post it in the hosta forum too.
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Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
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valleylynn
Aug 19, 2011 8:55 AM CST

Moderator

She also submitted it to Tips. Hurray!
Name: Chris
Ripon, Wisconsin
Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Sages Forum moderator Garden Ideas: Master Level Plant Database Moderator
Seller of Garden Stuff I sent a postcard to Randy! Sempervivums Sedums Region: Wisconsin Hosted a Not-A-Raffle-Raffle
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goldfinch4
Aug 19, 2011 10:22 AM CST

Moderator

Great idea!
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Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
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valleylynn
Aug 19, 2011 11:56 AM CST

Moderator

Well I found this little guy out in one of my semp beds. I see he is after one of the dreaded slugs. Slugs are a big part of this type of snake's diet. Encourage these little guys to move into your gardens, they will definitely help keep the slug population down.

Northwestern Garter Snake (Thamnophis ordinoides)
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Name: Chris
Ripon, Wisconsin
Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Sages Forum moderator Garden Ideas: Master Level Plant Database Moderator
Seller of Garden Stuff I sent a postcard to Randy! Sempervivums Sedums Region: Wisconsin Hosted a Not-A-Raffle-Raffle
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goldfinch4
Aug 19, 2011 12:31 PM CST

Moderator

Big Grin Pretty strange colored semps!
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Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
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valleylynn
Aug 19, 2011 12:44 PM CST

Moderator

You should recognize them Chris, you sent them to me. I love the bright blue/green color. Can't wait until they start making offsets.
I also love my new garden garter snake companion. I do have to warn DH that it is out there lest it might scare him. Rolling on the floor laughing
Name: tabby
denver, colorado zone 5
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tabby
Aug 19, 2011 12:54 PM CST
I've always had good results with Sluggo (Iron Phosphate) and it breaks down into things the plants can use.
Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
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valleylynn
Aug 19, 2011 1:26 PM CST

Moderator

I have used Slugo with good results also Tabby. But I sure like have a back-up plan, especially in our rainy season. Thumbs up
Name: Chris
Ripon, Wisconsin
Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Sages Forum moderator Garden Ideas: Master Level Plant Database Moderator
Seller of Garden Stuff I sent a postcard to Randy! Sempervivums Sedums Region: Wisconsin Hosted a Not-A-Raffle-Raffle
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goldfinch4
Aug 20, 2011 1:06 AM CST

Moderator

Yes, wouldn't want your DH to hit it with anything! Hilarious! If they start making offsets, I want to know!
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Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
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valleylynn
Aug 20, 2011 9:08 PM CST

Moderator

I will definitely send you some if they do that Chris. Whistling
Name: Chris
Ripon, Wisconsin
Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Sages Forum moderator Garden Ideas: Master Level Plant Database Moderator
Seller of Garden Stuff I sent a postcard to Randy! Sempervivums Sedums Region: Wisconsin Hosted a Not-A-Raffle-Raffle
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goldfinch4
Aug 22, 2011 12:51 AM CST

Moderator

Rolling on the floor laughing Rolling on the floor laughing Thanks!
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Name: Evan
Pioneer Valley south, MA, USA (Zone 6a)
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eclayne
Sep 2, 2011 6:19 PM CST

Plants Admin

In past I've found research which indicates this is only minimally effective. As I recall it the research was also conducted on Hawaii. Will try and find.
Evan
[Last edited by eclayne - Sep 2, 2011 1:34 PM (+)]
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Name: Kate
NEKingdom of Vermont (Zone 3a)
[url=www.LabourofLoveLandscaping.co
Charter ATP Member I was one of the first 300 contributors to the plant database! Plant and/or Seed Trader Sempervivums Tropicals Garden Ideas: Level 1
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LabourofLove
Sep 2, 2011 6:41 PM CST
I have hundreds of thousands of small snails in my daylily field (smaller numbers in other parts of the nursery). It absolutely works for me. But it must be VERY strong coffee to start with.

The original research was trying to find a way to shut up certain of the tree frogs and serendipitously discovered that it works on snails (but not the tree frogs).
Kate Kennedy Butler
Glover, Vermont

life without music would be a mistake Nietzsche
Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
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valleylynn
Sep 2, 2011 7:19 PM CST

Moderator

Thank heavens it doesn't work on the tree frogs. Hurray!
Name: Chris
Ripon, Wisconsin
Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Sages Forum moderator Garden Ideas: Master Level Plant Database Moderator
Seller of Garden Stuff I sent a postcard to Randy! Sempervivums Sedums Region: Wisconsin Hosted a Not-A-Raffle-Raffle
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goldfinch4
Sep 3, 2011 6:47 AM CST

Moderator

I agree I love those cute little frogs. Smiling
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Name: Marti Nelson
96 Royal Lane Somerset, KY 4 (Zone 6b)
Peace and long life
Charter ATP Member Region: California I was one of the first 300 contributors to the plant database!
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marti
Sep 18, 2011 4:05 PM CST
I been spraying my mini-roses with garlic water and not only have the afrids stayed away, but so has the rose worm, snails and slugs and ants. I just but crushed garlic in a jar from the store, put it in a gallon bottle, fill with water and let stand for a week. Occasionally I give it a shake or 2. Than I strain it into a spray bottle and spray the roses. No bugs.
Tahlmorra lujhala mei wiccan
(The fate of a man rests always within the hands of the gods)
Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
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valleylynn
Sep 18, 2011 4:18 PM CST

Moderator

Wow, wonder if that will keep racoons, squirrels and possum away?
Name: Andrew
Arkansas (Zone 8a)
Container Gardener
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Irrelephant
Apr 12, 2013 7:59 PM CST
If i get tired of hand killing them all, I put sliced potatoes out around the plants that I know they feed on. I go back after an hour or two (at night of course) and kill the dozens of slugs that feast on the potato.
It also works with a thin layer of beer.

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