With the growing evidence that chemical pesticides are harmful to human health, many gardeners are looking for smart, organic solutions for pest control. Most problem pests can be controlled naturally, eliminating the need for toxic pesticides or harmful chemicals. We provide the information – and experience – to help you maintain a beautiful, chemical-free yard and garden that’s healthy for you, your family and the environment.
Long term natural pest control is the most cost effective approach to managing insect pests. This method provides stable, continuous suppression of pests by promoting their natural enemies. The long term approach is also the least toxic method of controlling insects. Chemicals, used only as a last resort, are normally not needed.
Why not just spray?
Most chemical insecticides have very poor aim: they cannot target a particular kind of insect, but blast everything in their path, killing not just the pests but their predators as well. The white flies will go, but so will the ladybugs which feed on them. This means, ironically, that these products are effective for only a limited time (see The Pesticide Problem). Because they cut such a broad swath through the insect kingdom, they leave a “hole,” an ecological niche, into which the pests can easily return–unless you spray again, and again. Toxic insecticides, therefore, are a tactic of limited use. (more…)
Semaspore Bait, a Persistent Biological, and EcoBran for Quick Knockdown
How To Use
Modern baits provide lasting protection from grasshoppers one which:
- Kills grasshoppers at their source — the hatching beds — where they are concentrated, before they can migrate to your crop.
- Persists throughout the hatching and growing season and at least through the following year.
- Provides quick-kill of any survivors from the hatching beds or migrants from other areas which might threaten your crop.
Semaspore Bait (the Nosema locustae protozoa attached to wheat bran) is the bait which is applied to the hatching beds — grassy areas, particularly those with southern exposure and more-sandy soil. This biological agent is only toxic to grasshoppers, killing about half those in the hatching area, and infecting most of the remainder. These infected survivors (which eat little and lay few and infected eggs) are necessary to infect new hatchlings and migrants, through cannibalism — this provides the persistent protection. The disease also carries-over to the next year via the infected egg cases and infected cadavers which overwinter. (more…)
The more we discover about synthetic pesticides, herbicides and insecticides the more we learn how unhealthy they are for the environment and the people and animals that live in it. Pesticides can create more problems than they solve.
Spraying garden chemicals to get rid of bugs and weeds not only cause health risks, they often aren’t even that effective. Initially, they will kill off a lot of pests, but eventually these pests can develop resistance to the pesticide and come back even stronger. Another problem is the side effects many synthetic pesticides can have on unintended targets (think of DDT and birds).
The best plan is to avoid the need to use pest control in the first place by starting with healthy fertile soil, matching your plants to the soil type, ensuring proper sunlight levels and watering conditions, and using appropriate organic fertilization and pruning, when necessary. But, if that doesn’t work there are many alternatives to chemical pesticides that can reduce pests while leaving a healthy environment for your plants, pets and family. (more…)
The Problem with Pesticides, Herbicides and Fertilizers
At one time garden chemicals were championed as the panacea for agricultural shortages and deficits. Pesticides, it was said, were the technological answer to dealing with insects, weeds and other intruders that nature sent the farmer’s way. Herbicides increased yields by decreasing weeds. And chemicals kept soils fertile, making for more vigorous, more productive crops. Over time, we’ve learned that these claims are exaggerated if not completely false.
But these synthetic products have a down-side, one that threatens the environment and the very future of food production. Chemical fertilizers, herbicides and pesticides poison our waters, our soils, other living creatures and our own bodies. Their effectiveness, touted by big budget, corporate-driven marketing plans, isn’t all it’s cracked up to be. In light of these trade-offs, and the fact that healthy and potentially more effective organic alternatives exist, why should we risk our soils, our water and the health of our children? (more…)
Predators, Parasites and Pollinators — oh my!
Attracting or importing beneficial insects — “the good bugs” — into your yard or garden is a great way to reduce the number of detrimental insect pests without having to resort to toxic pesticides or insecticides.
There are four categories of beneficial insects:
Predators are generally larger than their prey and consume many pest insects throughout their lifetime. They are often considered general feeders, which means that they eat a variety of insect species. Unfortunately, some predators, like the voracious praying mantis, will eat just about anything in its path, including other beneficial insects. Both immature and adult predatory insects consume garden pests and some feed on pollen and nectar at various stages of their life-cycle. (The picture here shows a ladybug larvae feeding on aphids.) (more…)
Bacillus thuringiensis (Bt) is a natural occurring, soil-borne bacteria that has been used since the 1950s for natural insect control. It consists of a spore, which gives it persistence, and a protein crystal within the spore, which is toxic. That toxic protein differs, depending on the subspecies of Bt producing it, yielding a variance of Bt toxic to different insect species (or none at all). When the bacteria is consumed by certain insects, the toxic crystal is released in the insects highly alkaline gut, blocking the system which protects the pest’s stomach from its own digestive juices. The stomach is penetrated, and the insect dies by poisoning from the stomach contents and the spores themselves. This same mechanism is what makes Bt harmless to birds, fish and mammals whose acidic gut conditions negate the bacteria’s affect.
Recently, Bt has been questioned because of its inclusion in Monsanto’s genetically modified corn and cotton. The difference between the Bt used by organic farmers around the world and that genetically inserted into Monsanto’s corn is dramatic. Naturally occurring Bt is contained within the bacterium. The Bt gene inserted into genetically-modified corn contains only the final toxin without its containment. (more…)
Unlike plants grown in the ground, potted plants enjoy a relatively pest-free environment. In most cases, they are potted in quality soils or soilless mixes, and are often grown closer at hand, so they are inspected more frequently. As a result, they tend to have fewer problems with insects and disease.
With that said, there’s no predicting what could attack your plants. Just because they are confined to pots does not mean that they will be excluded from pest problems. Insects can creep into any garden and fungal spores are present in the air at all times. While the chances of potted plant pests are much smaller with container gardens, you still need to take precautions. (more…)
Stop Next Season’s Plant Disease… Now!
Of all the mistakes I’ve made growing vegetables — and I’ve made plenty — the biggest (or right up there) has to do with not taking the time for a good fall garden cleanup. I can barely bring myself to tell you.
One year, like most years, a fall frost hit the garden and I didn’t bother to get it covered. It withered squash vines and wilted the late plantings of lettuce and spinach. I should have been out there right away, removing all the dead vines, pulling the spinach (some of the lettuce made it back) and not given disease a chance to get a hold in the weakened plants. But I didn’t. And then, after a wet snow, I just let it all go, not putting the garden to bed until well into November. I didn’t know it yet, but by then my lack of action guaranteed that my spinach and chard crops for the next year would be compromised and keeping my squash vines growing would become a battle. (more…)
According to Reuters, Scotts Miracle-Gro company will be fined $12.5 million for illegally including pesticides in bird food products. The company pleaded guilty in February to the charge that it violated the federal law governing the use of pesticides. The fine includes $2 million that will be spent on “environmental projects.” The penalties, according to the Justice Department, are the largest in the history of the Federal Insecticide, Fungicide and Rodenticide Act. A company spokesman says Scotts has taken full responsibility.
Truth-Out.org reports that the company voluntarily recalled products that it treated with pesticides. Why Scotts treated the bird seed with the knowledge that those pesticides were toxic to birds, fish and other wildlife is the central question. Scotts says that the pesticides were added to the bird seed to prevent insect infestations. The Audubon Society reports that Scotts falsified pesticide registration documents and distributed pesticides with misleading and unapproved labels. Scotts reportedly sold more than 70 million units of the bird food, branded as Morning Song and Country Pride, between 2005 and 2008. (more…)
August is often the make or break month for potatoes. No doubt, if you’ve planted a few rows (or a lot) of potatoes, you’ve already dug a few plants for new potatoes which are usually ready two weeks or so after the plants blossom. But if you’re waiting until the first frost so you’ll have big tasty tubers for winter storage, now’s the time to be on alert. Warms days with high consistent humidity encourage blight, as does wet weather. The problem with potato blight is that once it starts, it’s nearly impossible to make it disappear completely. Still there are things you can do to prevent and impede potato disease. The ultimate goal is to keep them from the tubers. (more…)