

Only since 1800, in the last 0.1% of the history of Homo sapiens, has the human population shot into the billions. Now at nearly 6.7 billion, with 9 billion looming 40 years away, few environmentalists seem to care.
Yet the population-environment link is clear. Our environmental impact, as gauged by total resource consumption for a country or the world, is the product of population size and the average person's consumption.
Today's crumbling environment, racked by climate change, mass extinction, deforestation, collapsing fisheries and more is evidence our total consumption has gone too far. We are destroying our life-support system. In ecological terms we are in "overshoot" of Earth's "carrying capacity" for humans, our demand exceeding the planet's absorptive and regenerative capacities.
~ Return of the Population Time-Bomb || Too many People: Earth's Population Problem ~As for motherhood — the fertility of the human race — we are getting to the point where you simply can't discuss it, and we are thereby refusing to say anything sensible about the biggest single challenge facing the Earth; and no, whatever it may now be conventional to say, that single biggest challenge is not global warming. That is a secondary challenge. The primary challenge facing our species is the reproduction of our species itself.
How the hell can we witter on about tackling global warming, and reducing consumption, when we are continuing to add so relentlessly to the number of consumers? The answer is politics, and political cowardice.
It is time we had a grown-up discussion about the optimum quantity of human beings in this country and on this planet. This is a straightforward question of population, and the eventual size of the human race.
~ Global over-population is the real issue: Population, Politics & Political Cowards || Humanity’s Choice: A Series of Exits—Not a Fork in the RoadI have had a chance to observe quite a few companies in the U.S. from the inside, and have spotted a certain constancy in the staffing profile. At the top, there is a group of highly compensated senior lunch-eaters. They tend to spend all of their time pleasing each other in various ways, big and small. They often hold advanced degrees in disciplines such as Technical Schmoozing and Relativistic Bean-counting. They are obsessive on the subject of money, and cultivate a posh country set atmosphere, even if they are just one generation out of the coal mines. Ask them to solve a technical problem — and they will politely demur, often taking the opportunity to flash their wit with a self-deprecating joke or two.
~ Surviving Peak Oil & Economic Collapse: Post-Soviet Lessons for a Post-American Century.. ~

Ball Point Wren
The Worm Man
Not long after my fire ant column, "Go Away! Ant That Means YOU" made it into the San Diego Union-Tribune I received a phone call from a reader, a Mr. George Hahn.
After our initial confusion (I thought he was an editor--he thought I was a reporter) Hahn explained that he owns California Vermiculture, the company that produces Wormgold earthworm castings.
My disappointment at not being hired as a columnist was great, but I got over it. Besides, Hahn's subject matter was pretty entertaining.
For those of you who don't know, worm castings are a polite way of saying worm POOP. And Hahn was on the phone to tell me he has the organic solution to California's recent fire ant invasion: worm poop.
The Enzyme
According to Hahn, worm castings contain an enzyme called chitinase. Insects avoid chitinase because it dissolves chitin, the main ingredient in their exoskeletons. If a plant contains a high level of chitinase, Hahn says insect pests like aphids, spider mites and whiteflies shy away from it. He claims they won't walk on it, either.
In other words, when a plant absorbs chitinase with other nutrients from the soil, it makes them taste bad. Insects may take a bite but will say "blech!" and go looking for better tasting chow. If they step on chitinase, they'll cry, "Aieee!" and hurry off to a chintinase-free zone.
To be honest, at first I thought Mr. Hahn was just another overeager salesman and I wished I had thought to pay Pac Bell for an unlisted number. But his enthusiasm was hard to resist and the information he faxed me was interesting.
In addition to general product information about Wormgold (Hahn's brand of castings), he included a copy of a letter written to him by Randall Ismay, Horticultural Consultant for Water and Landscape Consultants of Laguna Niguel.
The Fire Ants
In this letter, Ismay states that he reluctantly yielded to Hahn's prodding and distributed a one-inch thick layer of castings over several dozen confirmed RIFA mounds. To Ismay's astonishment, he observed that, "literally all visible ant activity ceased completely. In every single instance, without even one exception."
Ten weeks after Ismay's initial tests, the fire ants did not reappear in the treated areas.
The Whiteflies
In Hahn's information packet there was also a clipping of a Los Angeles Times article dated Saturday, May 27, 2000 by garden writer Julie Bawden Davis.
Davis wrote that she had been battling whiteflies on her hibiscus plant for over two years without success. But one month after spreading a one-inch layer of worm castings around the base of the hibiscus, she noticed "that the whitefly population had dwindled. Three weeks later there were absolutely no whiteflies on the plant. It's now back to its healthy self and producing lots of blooms."
The Suits
Hahn says he called the California Department of Food and Agriculture to tell them worm castings might be a non-toxic solution to the RIFA dilemma, but was immediately accused of illegally promoting an insect repellent without authorized government approval. They warned him that such claims could result in prison time.
"Heck," Hahn says he told them, "you're going to send me to prison because I tell people to spread worm poop in their back yards? It's already sold everywhere as a fertilizer!"
This is true. Worm castings have long been known to be an excellent organic fertilizer and are sold in countless nurseries all over the world. The stuff doesn't burn and is odor-free, unlike other manure products.
The Professors
Nevertheless, I wanted an expert opinion. I forwarded Hahn's packet of information to the horticultural department at two California universities to ask some experts what they thought about all this.
Dr. Robert Rice from Cal Poly San Luis Obispo was kind enough to send me this response:
I haven't seen any data to support Mr. Hahn's claims in the scientific literature. Mr. Hahn repeatedly refers to scientific evaluation yet does not cite the published sources. . . there are too many variables and the whitefly could have gone away for a completely different reason which coincided roughly with the application of the earthworm castings. So, I am not discounting the possibility that the castings have some repellent properties but until it was evaluated under controlled conditions I am skeptical.
An opinion from another California university was more blunt:
If this stuff really worked we (entomologist, PCA's and people in horticulture) would be recommending the material. Personally, I think he is trying to make money. There is a sucker born every minute! The worm industry was in its heyday a few years ago and people lost money in the "worm business." I believe in biocontrol but it doesn't work in every situation. A lot of claims without any documentation.
Hahn admits he needs scientific research, not just anecdotal evidence to back up his claims. Currently, he says his worm castings are being used in a study at the Quail Botanical Gardens Pinetum in Encinitas, California. And in anticipation of receiving government approval of his worm castings as an insect repellent, he has also applied for a patent.
The Hardhead
Being the hardhead that I am, I decided I'd like to see for myself if this stuff works. While we don't have fire ants in our neighborhood yet, most of San Diego is suffering from an overabundance of Argentine Ants and whiteflies.
I purchased Wormgold worm castings and spread it over an area in my yard where Argentine Ants are a serious problem (I refrained from applying it in my kitchen).
With my neighbor Sophie's permission, I also spread the stuff under her hibiscus plants, which are dying a slow death from whiteflies, as are most hibiscuses in the San Diego area.
I made note of my experiences in a log, but summarized the results of my experiment here.
You might want to experiment in your yard, too. Follow the instructions for using worm castings and let me know what happens. If you give me permission, I'll print your experience on this site.
Remember, Hahn is not claiming worm castings will kill fire ants or other insect pests. Rather, he is saying the castings will repel them.
If it works as Hahn says, when we treat our yards with castings, we should observe insect pests moving to a chitinase-free area, like the neighbors' yards. If so, this might upset the neighbors, but so what? Tell them to get their own worm poop.
The Disclaimer
- I am not receiving any compensation (not even a free bag of poop!) from George Hahn, California Vermiculture, or any other agency.
- I am not a gardening expert. I am, however, a mom who prefers to use natural solutions for her insect pest problems. (See "Babies on Board.")
- You want a truly scientific opinion on this topic, go talk to a scientist.
Source: BallPoint Wren

by George Hahn, California Vermiculturist
Worm Castings have been known as the best item possible to make all plants to grow better. New applications have been researched by several universities and have been field tested for confirmation. Any landscape or growing application will benefit immensely from the use of worm castings.
Improved Growth: Extensive university testing has been performed by Ohio State, Cornell University, UC Davis, and the Australia SIRO to prove the results with worm castings. These tests have shown improved flower size, bloom quantity, quality, and color. Fruit and vegetable tests have resulted in yield improvements from 15% to 57% as well as improvements in taste and appearance.
100% Organic: The general public has come to correctly support non-chemical answers. Worm castings have been known since the time of Charles Darwin's research as the best way to healthy soil and healthy plants and 100% organic. A common cry is for solutions that are not chemical based so we don't risk potential health problems.
Non-Toxic: The skull and cross bones found on agriculture chemicals is absent on worm castings because they are non-toxic. Parents do not need to fear for their children or pets with worm castings.
Can't Burn: Since worm castings are 100% organic they don't have the salts found in synthetic fertilizers. The absence of these salts means that there is no possibility that plants can be damaged using worm castings.
Odor-Free/Odor Elimination: Worm castings are the only animal waste that does NOT have a manure odor. Worm castings have the fragrance of rich healthy soil.
Odor Elimination: Testing has shown that worm castings are very quickly effective at odor elimination. Mix 20% worm castings with composted dairy manure, horse manure, chicken manure, or compost and all objectionable odors are eliminated within eight hours. You can now use these effective organic fertilizers without offending odors. Worm castings are more efficient and cost less than half than activated charcoal.
Fungus Control: Four major university research projects and testing has shown that the complete soil food biology found in worm castings will quickly control fungus problems. Within a few weeks plants suffering from fungus problems will show significant improvement that lasts. All ground fungus is quickly brought under control. Nitrogen is released in the fungus control process providing added plant growth. (This is published research information and can be given to buyers in a generic form).
Insect Repellency: Testing has shown that several microorganisms found in worm castings stimulate the organisms in plants that work as repellants for a large array of insects. The repellants increase to a level that the insects find the plant nectar distasteful. The insects then leave. The effectiveness has been seen for aphids, white fly, and other bugs that feed on the plant juices. Plants tested included but are not limited to: begonias, various citrus, hibiscus, various house plants, morning glory, roses, solanum, and zylosma. The number of individuals who have successful applications now exceed 1,500. This research is on-going. A patent application is in process as well as a bio-pesticide registration.
Fire Ant and Common Ant Repellency: Ants can detect the natural repellency organisms when they walk over worm castings. They find the worm castings highly objectionable. An immediate negative reaction can be seen by ants when worm castings are applied. The ants leave areas covered with a ‡ inch layer but will begin to walk across the layer after a few weeks. Apparently some change happens to the top layer. Red fire ants will leave their nests within 24 hours of a single application. We are working with the top research scientists for the application on red fire ants. The ant revulsion has many applications.
How Does the Insect Repellency Work?
My best understanding and explanation is:
The relationship between the enzyme chitinase and insect repellency is well documented from academic research. (Extensive research work is now being done to genetically alter plants to produce a high level of chitinase). Using worm castings is a non-toxic, and organic methd of doing the same without genetic alteration.
The enzyme chitinase will dissolve chitin and chitin makes the exoskeleton of a bug. If the level is below detection then it is not toxic to the bug and they can NOT detect it. Increase the level of chitinase above this level and the bug is repelled by the nectar of the plant rather than attracted to it. The bugs reaction to chitinase is similar to our reaction to sour milk. One drop of sour milk mixed into a glass of sweet milk and you will drink the glass with no negative reaction. However, mix in three tablespoons and no one has to convince you to not drink the milk.
Using worm castings triggers the chitinase production level. At this point I can't name the trigger organism. I have a theory that I am researching. I should be able to name the organism soon. Applying the worm castings to the soil at a 10% - 20% mix results in the level of internal chitinase increasing. The 10-20% mix comes from research by Ohio State, Subler, Edwards, et al, regarding the optimum mix for optimum plant growth. Applying a ‡ inch layer to the top of a plant equates to 10%. A 1 inch layer to 20%.
The detection level for the bug is in the range of 1 million cfu/dwg. We have tested plants covered in white flies. The level of chitinase producing organisms is usually less than 300,000 cfu/dwg. One particular hibiscus tested at 260,000 cfu/dwg prior to application. This 10 foot tall hibiscus was covered in white flies. Three months after application the white flies had left the plant totally. The chitinase level had increased to 670,000,000 cfu/dwg.
The speed of repellency is in direct relation to the size of the plant. Spider mites will leave house plants in about two weeks. Aphids will leave roses in less than two months and it will take about three months for all of the white flies to leave a ten foot tall hibiscus.
It appears that this mechanism works for nearly every plant. I have included a list of the plants tested. All of the plants listed were tested by 11 nursery managers/staff and two garden writers. All tests to date have shown success. (These tests were NOT performed by California Vermiculture). We have performed our own tests and shown efficacy have relied on tests by others as support data. Nearly every one of these testers scoffed at the possibility of worm castings being able to repel insects.
The manager of Steven's Nursery told me that he could not accept insect repellency. I agreed that the idea sounded outrageous but offered samples for his personal testing. He had Joseph Coat roses that had been plagued with aphids for over six years. He said that there was not a single spot on these roses bigger than the size of a dime NOT covered in aphids. He applied a 1 inch layer in the watering basin. In less than two months, all aphids were gone. He has now applied worm castings to all of his roses. He now has not a single aphid anywhere.
Nursery managers have asked their clients to apply worm castings and observe the possible pest repellency effects. The number of people who have seen success in their own tests exceeds 1,000. I have asked how many of their clients have complained of no positive results. Not one complaint for lack of results has been made to date except for Gina Wright.
You read the article by Gina Wright in Decor & Style. You need to know the whole story. In a later article, Gina reported that her aphids were all gone but the white flies were still evident though greatly reduced on her hibiscus and abutilon. I contacted her to do some testing to determine why she still had white flies. She reported back that she had spoken too soon. All white flies are now gone.
I have registered the use of worm castings for insect repellency as a patent. The patent search shows no one else has made this claim. Dr. Scott Subler says he is familiar with the industry and no one else has tied together this effect. Dr. Subler also did Not believe my radical reports but now says this is the first ever, organic, non-toxic method to provide for insect repellency. Dr. Subler are working together to assmble the needed academic documentation. We should have several research projects underway before the end of the year.
I am working with the EPA Biopesticides to get registration as both a fungicide and a pesticide. The director and his staff are very supportive. I should have registration for non-food applications before the end of the year. Food applications will take longer.
Source: Hidden Valley Nature Arts



I am amazed by the thought process of some survival authors who go to great lengths to convince readers that raising a garden is not a viable survival strategy. After all, having a garden makes you a target, hungry people want food and will rob you of your harvest.
I love building useful things from junk, like this
Gardening is hard work, all the bending, stooping, pulling, planting, picking, plucking, composting and other chores can leave you exhausted by the end of the day. In a survival situation, time will be at a minimum and energy should be conserved if possible.










