Black Walnut Trees Produce A Natural Insecticide

The black walnut tree manufactures a substance that is a natural insecticide according to experts at the Texas State University in Austin.

American black walnut tress contain a tannic acid chemists call juglone. The reddish yellow substance leaches from leaves, and some believe exudes from roots, or transfers from branches and foliage to the roots. Tree physiologists agree that roots of other plants that come in contact with those black walnut tree roots die--even other black walnut seedlings.

Juglone is sometimes washed out of the still green walnuts during late summer or even autumn rains. The growth of plants 60 to 80 feet away are inhibited by the juglone. The substance affects plants of various families. Studies have found that tomatoes, alfalfa, potatoes, apples, blackberries, rhododendron, mountain laurel and pine trees are all affected.

According to a professor and extension forester at Iowa State University, juglone is known to repel various garden insects. Just by placing branches of the tree around the house and under furniture dog and cat owners are amazed to find that their pets have fewer fleas.

For more information on natural flea control:

http://www.apluswriting.net/onlynaturalpetstore/fleacontrol.htm

For more information on natural garden products:

http://www.apluswriting.net/garden/gardensalive.htm

REQUIREMENTS FOR REPRINT: You have permission to publish this article free of charge in your e-zine, newsletter, ebook, print publication or on your website ONLY if it remains unchanged and you include the copyright and author information (Resource Box) at the end. You may not use this article in any unsolicited commercial email (spam).

You may retrieve this article by:

Autoresponder: juglone@getresponse.com

Website: http://www.apluswriting.net/articles/juglone.txt

Copyright: 2005 Marilyn Pokorney

Please leave the resource box intact with an active link, and send a courtesy copy of the publication in which the article appears to: marilynp@nctc.net

------------------------------------------------------------

Author: Marilyn Pokorney Freelance writer of science, nature, animals and the environment. Also loves crafts, gardening, and reading. Website: http://www.apluswriting.net

---

Butterfly Gardening

Butterfly gardening is not only a joy, it is one way that you can help restore declining butterfly populations. Simply adding a few new plants to your backyard may attract dozens of different... Read More

You Say Tomato I Say Mosquito

Gathering tomatoes or other fruits of the garden might not sound like a dangerous occupation, but with terrorism running rampant these days, even a walk thru the garden can require pre-emptive measures. In... Read More

The Flower Garden in August

Our flower garden in August can be brimming with activities we can do at this time of year, as we can for most of the year. We have some flower gardening tips to... Read More

Earthworm Friends in the Garden

Earthworms are a gardener's best friend.Research has shown that earthworm excrement, also called castings or vermicompost, improves the aeration, porosity, structure, drainage, and moisture-holding capacity of soil.Many studies prove that when compared to... Read More

High Intensity Discharge Grow Light (Generic)

HID lamps are categorized in three groups :Mercury Vapor , Metal Halide, and Pressurized Sodium. For plant cultivation, Metal Halide (MH) or Pressurized Sodium (HPS and LPS) are the ones commonly used in... Read More

What is the Right Plant and Where Do I Put It?

Know if your plants are disease-susceptible. Your choice of plants used in your garden is as important as the soil that you put those plants in. Select plants that are disease resistant and... Read More

Starting Seedlings Indoors

Unless you have access to a greenhouse, or something like it, those living in cooler climates will have to start seedlings indoors if they are to take full advantage of their growing season.Here... Read More

How and When to Plant Roses

When spring comes and the ground is thawed, it is time to start planting your rose garden. Roses have been a cherished aphrodisiac since biblical times. They have been around for over 3000... Read More

Fall Pond Cleaning

Doing a full pond cleaning during the colder winter months can be very stressful on your fish. However, if the pond is really dirty and full of 'muck' - then you may want... Read More

Organic or Chemical Feeding of Plants - Whats Best

A fundamental question in vegetable gardening is - what is the proper use of organic and/or chemical materials? Let's determine the truth of the matter, with four basic principles and a few brief... Read More

Drying Roses

There are many reasons why you might want to dry your roses. Some people just want to keep a memento of a special moment. Perhaps they are a part of a wedding that... Read More

The Difference Between Large and Small Ponds

If you think that a large pond is simply a small pond that "grew up", you're in for some pond maintenance problems. Let's start off my defining the terms that we'll be using... Read More

Sleeping Beauties: Porches For Dreaming

There's something magical about sleeping outside, drinking in the night sounds of crickets, frogs and wind chimes, watching fireflies and stars, and feeling the cool night breeze. You'll find children giggling long past... Read More

Cat Repellent or How to Keep Cats Out of Your Garden

Do cat repellents work? How to stop a cat from using garden as litterbox? Tell me how to keep cats out of my garden. These are common questions of concern to all gardeners... Read More

Bird Baths in Your Yard

HOOOOOOOOOOOEEEEEEEEEHas summer come in with a bang!Heat waves everywhere.And where is the rain?Yolanda is at camp this week.She gets so excited.She can remember that camp is a fun time for her, yet she... Read More

Ladybugs, Ladybugs, Come to My Garden

Ladybugs, also called lady beetles or ladybirds, can be a gardener's best friend. The ladybug's bright coloring brings welcomed cheer to the garden, as well as helping with pest control. Since medieval times,... Read More

Tranquility in Your Own Back Yard

A garden fountain can add beauty and serenity to you yard or garden. It's long been known that running water can aid in relaxation. The addition of a water fountain can not only... Read More

Funniest Pond Stories-Part 1, May 2004

Get ready for some gut-wrenching, laugh out loud hilarious pond stories from all over the world...(Continued from May Issue of PondStuff!)We had some hilarious, truly gut wrenching, laugh out-loud stories sent in by... Read More

Kirengeshoma palmata

Kirengeshoma palmata Sometimes known as yellow waxbells, Kirengeshoma palmata is a late-flowering rhizomatous perennial up to 1.2m high with arching stems and is native to the woods and mountain lowlands of Korea... Read More

How to Grow Hydrangeas

Whether you call them Hydrangea Macrophylla, House Hydrangea, French Hydrangea,, or Mopheads, growing Hydrangeas in the home garden can be an enjoyable experience. They are lovely, whether used as single plants or in... Read More

What Is One Flower Benefit That You Know Of?

The biggest flower benefit of all is the fact that flowers make you happy.Research has proven this.Flowers actually make you happy.When you are down, look at a flower arrangement and you will be... Read More

Gallica Roses

Very soon stocks of new season's roses will be arriving in the garden centres, if they're not already there. Indeed, to be sure of getting the most sought after varieties it... Read More

Bottle Gardening or Terrarium - Design and Maintenance

Women take pride in home decoration and gardening and want some unique and prized possessions that are not part of the neighboring dwellings. Gardening offers opening as there is no end to creativity,... Read More

The Garden As Healer

The word for 'paradise' comes from the Persian word for a garden and has always meant the same thing in every culture. It is representative of 'paradise on earth' and is our opportunity... Read More

Release Some Tension...Spend Some Time In Your Garden

Gardening can be one of the most rewarding and relaxing hobbies that you can engage in. Picture a beautiful spring day, the sweet smell of grass in the air and you get to... Read More

How To Check If Cut Flowers Are Fresh

Fresh flowers should feel crisp or firm. Before you buy, run your hand under the flower heads from stem to petal tip. Proceed gently under the petals so as not to bruise them.If... Read More

A Storage Bench Provides Much Needed Outdoor Space

If you are like most of us, there are two things that you cannot get enough of: storage and outdoor seating. What if I told you that I have the perfect solution to... Read More

5 Secrets to Growing Beautiful Roses

A rose is a rose is a rose - and there are few things in the garden more beautiful. There are 5 secrets I want to share that will help you to grow... Read More

y, Fun Garden Plants

I have a love for funky, fun and unique garden plants. Here's one to try. It's called Sea Holly, and it's actually in the thistle family.Sea Holly is a perennial garden plant, which... Read More