JOIN NOW LOG IN
iVillage GardenWeb iVillage GardenWeb THE INTERNET'S GARDEN & HOME COMMUNITY ADVERTISEMENT
Blogs Forums Photo Galleries Ask The Experts Tools & Directories        
Return to the Organic Gardening Forum | Post a Follow-Up

 o
Diatomaceous Earth in veggie garden?

Posted by ckbozeman 7b/8a (My Page) on
Wed, May 20, 09 at 15:54

Hi all,
I'm a first time poster to this forum. Just recently joined gardenweb.
I use DE in my hosta beds to keep the dreaded slugs at bay. I also braodcast it in the yard for fleas.
I have planted my first vegetable garden this year (I know nothing about veggie or organic gardening. Getting lots of good info from this site.) I was thinking of spreading DE in the garden because fire ants are becoming noticible. Will the DE harm the beneficial critters? On another thread I saw mention of molasses to control fire ants. Where would I find this product, and under what name?
Thanks for your wisdom :)


Follow-Up Postings:

 o
RE: Diatomaceous Earth in veggie garden?

DE is great in the garden to control slugs. I have never had fire ants here in NY so I don't know if it's effective against those. My experience has been that it work well for large bodyed insects, because it is like microscopic razor blades that cut them apart and cause them to bleed out. As fas as the molasses . . . use the stuff from the supermarket!

Ron
The Garden Guy
http://www.TheGardenGuy.org
May Article: "Sucession Planting" plus
ongoing garden journal & interactive message boards!


 o
RE: Diatomaceous Earth in veggie garden?

The best place to learn about Imported Fire Ant control is at the Texas A & M web site from which everyone else I have seen with anything about them copies from. While I have seen some reports that Diamotaceous Earth has helped I have seen just as many that it does nothing to control those buggers. The molasses is a bait, by itself it does nothing except feed the ants, you need to add something else to the molasses if you are to use it to control them.

Here is a link that might be useful: Fire Ant Control


 o
RE: fire ants

By Pat Ploegsma, reprinted from Native Plant Society of Texas News
Summer 1999

Have you ever started planting in your raised beds and found fire ant highrises? Are you tired of being covered with welts after gardening? Put down that blowtorch and check out these excellent organic and non-toxic solutions.

Malcolm Beck1, organic farmer extraordinaire and owner of Garden-Ville Inc., did some experiments that showed that molasses is a good addition to organic fertilizer (more on fertilizer in the next issue). When using molasses in the fertilizer spray for his fruit trees he noticed that the fire ants moved out from under the trees. "I got an opportunity to see if molasses really moved fire ants. In my vineyard, I had a 500 foot row of root stock vines cut back to a stump that needed grafting. The fire ants had made themselves at home along that row. The mounds averaged three feet apart. There was no way a person could work there without being eaten alive! I dissolved 4 tablespoons of molasses in each gallon of water and sprayed along the drip pipe. By the next day the fire ants had moved four feet in each direction. We were able to graft the vines without a single ant bothering us."

This gave him the idea for developing an organic fire ant killer that is 30% orange oil and 70% liquid compost made from manure and molasses. The orange oil softens and dissolves the ant’s exoskeleton, making them susceptible to attack by the microbes in the compost, while the molasses feeds the microbes and also smothers the ants. After the insects are dead, everything becomes energy-rich soil conditioner and will not harm any plant it touches. It can be used on any insect including mosquitoes and their larvae.

Break a small hole in the crust in the center of the mound then quickly!!! pour the solution into the hole to flood the mound and then drench the ants on top. Large mounds may need a second application. Available at Garden-Ville Square in Stafford, it has a pleasant lemonade smell.

According to Mark Bowen2, local landscaper and Houston habitat gardening expert, fire ants thrive on disturbed land and sunny grassy areas. "Organic matter provides a good habitat for fire ant predators such as beneficial nematodes, fungi, etc.

Other conditions favoring fire ant predators include shading the ground with plantings, good soil construction practices and use of plants taller than turfgrasses." He recommends pouring boiling soapy water over shallow mounds or using AscendTM. "Ascend is a fire ant bait which contains a fungal by-product called avermectin and a corn and soybean-based grit bait to attract fire ants. Ascend works slowly enough to get the queen or queens and it controls ants by sterilizing and/or killing them outright."

Malcolm Beck also did some experiments with Diatomaceous Earth - DE - (skeletal remains of algae which is ground into an abrasive dust) which confirmed that DE also kills fire ants. He mixes 4 oz. of DE into the top of the mound with lethal results. According to Beck, DE only works during dry weather on dry ant mounds. Pet food kept outdoors will stay ant free if placed on top of a tray with several inches of DE

1Beck, Malcolm. The Garden-Ville Method: Lessons in Nature. Third Edition. San Antonio, TX: Garden-Ville, Inc., 1998.
2Bowen, Mark, with Mary Bowen. Habitat Gardening for Houston and Southeast Texas. Houston, TX: River Bend Publishing Company, 1998.

**** I remebered this post and copied it for U. I have heard a lot of refernces to the orange oil - so it is worth a try. Maybe try white vinegar too I think that may work as well. ****

Please post if any of it helps!

Maddie


 o
RE: Diatomaceous Earth in veggie garden?

Once Diamotaceous Earth gets wet, ala mixing it into soil, it is ineffective. Also there is DE mixed in many of the foods you eat to aid in controlling thingys such as the grain moths.


 o
RE: Diatomaceous Earth in veggie garden?

Ron/organicguy,
You've never experienced the joy of fire ants??? I'd be happy to send you mine! ;-p

Thank you all for the info.


 o
RE: Diatomaceous Earth in veggie garden?

ckbozeman,
Thanks, but I will pass on the ants! Would you like a few dozen squirrels? :-)

Ron
The Garden Guy
http://www.TheGardenGuy.org
May Article: "Sucession Planting" plus
ongoing garden journal & interactive message boards!


 o
RE: Diatomaceous Earth in veggie garden?

Is Diatomaceous earth that is sold for swimming pool filters the same as is used in the vegetable garden? Thanks, Ena Louise.


 o
RE: Diatomaceous Earth in veggie garden?

Ena, no. Pool grade Diamotaceaous Earth is not the same as food grade which is what you want.


 o
RE: Diatomaceous Earth in veggie garden?

Never use pool grade diatomaceous earth in your garden. It has qualities that are not safe to eat. If you are using diatomaceous earth around things you will be eating, make sure it is the food grade version.

Here is a link that might be useful: Diatomaceous Earth


 o
RE: Diatomaceous Earth in veggie garden?

Can you tell me why pool-grade DE is not safe in a garden? The link was more like an advertisement with no comparables. I've used pool-grade in my garden, but not in vegetable area.


 o
RE: Diatomaceous Earth in veggie garden?

borderbarb, pool grade DE has undergone physical and chemical treatments that make it suitable for filtering, but useless for pest control. It is also considered highly hazardous to handle as it has a high percentage of free silica (70% or so).

Horticultural/food grade DE is a broad spectrum pesticide and should be used accordingly. Never apply widely or indiscriminately as it can cause real problems for important beneficials, such as bees and ladybugs, etc.

Also, DE does not become INeffective when it becomes wet, just less effective.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Organic Gardening Forum
 
 


iVillage GardenWeb: The Internet's Garden & Home Community  
  iVillage Home & Garden Network