No Farms No Foods: Is Organic Farming Always Sustainable?

The more we learn about what our foods go through to be bigger, better and stay fresh, the more convincing it is for us to buy organic. However, due to high social and economic costs, organic certification is not always a viable option for small-scale farmers. In this blog I want to address a popular question, how do we support local farmers and still make healthy and environmentally conscious decisions?

To do so, I would like to introduce you to a family of pecan farmers who are health and environmentally conscious, but not certified organic.

I first met George and Becky this summer at the Auburn, Alabama Farmers Market. What caught my eye was their pecan honey granola. Before taking some home, I inquired if their products were organic. Here is what they told me:

“We prefer to use the word sustainable…”, George kindly explained. He added that they don’t feel that there is anything wrong with organic farming, but the costs of starting and keeping a certified organic farm are steep; these costs are often unrealistic for small-scale farmers. Instead, George and Becky explained to me, the sustainable farming practices they follow allow farmers to make a living while being as environmentally sound and as healthy as possible. Let me give you an example.

www.samswildbees.com

Becky and George started with a pecan farm. They did not want to use chemical fertilizers to keep the soil rich for their pecan trees, so they came up with a sustainable solution, planting clovers! Clovers provide nitrogen to the soil; therefore these plants serve as a natural fertilizer (the biology of this is a little more complicated). But the story does not end there. Clovers do not grow without pollination. To use clovers as fertilizers, Becky and George decided they would need a healthy population of bees. Conveniently, Ben, the head of the local beekeepers association, was able to help them start a small beekeeping operation. Now, not only do they have a fertilizer-free pecan harvest, but honey as well. 

The story is more complicated still. Wild grasses often take over in fields, meaning clovers have trouble growing alongside them. The easy way to get rid orchards of grasses is to use a weed killer. Instead, Becky and George looked for a sustainable solution. This time it was cows, which roam through their orchard while foraging (and cleaning up) the wild grasses. Since these farmers do not spray with pesticides, they also produce pesticide-free, grass-fed beef.  I’ll stop here because Becky and George’s story goes on, but, in a nutshell, this is what they meant by sustainable farming.

After hearing this story, I asked, if you are so careful to practice environmentally sound farming, why don’t you advertise as organic?

C. Leopold (Flickr)

George explained to me that although they do their best to be sustainable, there are still many challenges for farmers. For pecan farmers it is the “pecan scab”. Pecan scab is a hard-to-control fungus that attacks pecan trees with the potential to decimate entire pecan harvests. For now, these farmers spray pecan trees once a year to protect trees from this pest. If these farmers were to become organically certified, they would be required to have a pesticide-free farm for minimum three years (among other hurdles). Because there is no effective organic control of pecan scab, trying to go ‘organic’ may mean drastic losses on their orchard and drastic losses means big hits to their income.

Although Becky and George would like to eliminate all use of pesticides one day, for now they are satisfied with sustainable small-scale farming. As Becky told me, sustainable cannot only be defined in relation to the environment, there has to be something in it for farmers too. If not, there is little motivation to continue these practices.

Although I talk about pecan farming here, this story is not unique to George and Becky. After speaking with many farmers on this topic, I’m encouraged to look a little further past a label in order to best support innovative and sustainable farming practices.

Certified organic is an excellent choice when we are trying to reduce the amount of chemicals in the environment. But, there are many benefits to buying local as well, including supporting small-scale farmers engaging in environmentally-sustainable practices. As always, the best way to find out more about the food you eat is by talking to the people who grew it.

A great way to meet them is by purchasing your vegetables at farmers markets or through Community Supported Agriculture (CSA) networks. Here are a couple links that allow you to search for farmers markets near you in Canada or in the U.S.A. 

For more information on the health and environmental effects of pesticides: 

DAVID PIMENTEL (2005). ENVIRONMENTAL AND ECONOMIC COSTS OF THE APPLICATION OF PESTICIDES PRIMARILY IN THE UNITED STATES Environment, Development and Sustainability, 7, 229-252

What is Causing Honey Bees to Disappear?

Honey Bees (Apis Mellifera)

After my recent blog on the environmental benefits of honey, readers have asked about global reports of bee declines. Among these reports is the case of the honey bee – one of many species of bees. This is different from the bumblebee (Bombus spp.), which you will probably have observed in your garden or eating pollen from wild flowers. In fact, there are hundreds of species of bumblebees. As for the honey bee, there are also many species, but the most common domesticated species used for honey production is Apis mellifera.

In 2006 people began to observe large numbers of honey bees vanishing from their hives. As you may know, less bees means less pollination of many of our crops. Without bee pollination, many foods can not be produced. For example, almonds would cease to exist if it weren’t for bees. Before I promise any answers, I should make clear there is no straightforward answer to what is causing honey bee deaths and their entire colonies to collapse. That’s why people have called this mysterious phenomenon “Colony Collapse Disorder”.  Here, I talk a little about what this means. 

Stacked White Boxes = 1 Bee Hive

My first real experience with honey bees occurred only recently. A few weeks ago, I introduced myself to Ben McGehee at the farmers market out of a curiosity regarding his work, and my love of honey. I asked if I could tag along on a day in the life of a beekeeper. When six-thirty am rolled around, and I was all suited up in my bee-gear, I went out with Ben, and his beekeeping student Mollie, to talk about bees and find out why colonies are collapsing.

Colony collapse is the loss of many adult worker bees from a single hive in a short time span. It does not necessarily affect all of the hives in one area, as Ben explained, but one day you may go out to find one or a few beehives absent of their adult bees. To give you an idea of what that means, a healthy hive can contain from 55, 000 – 70, 000 bees.  So, losing one hive is a devastating loss for beekeepers. As Ben, as well as researchers report, the cause, or causes, of colony collapse are not fully understood. 

So, what do we know?

Ben and Mollie Working at the Hives

Causes of colony collapse are thought to be multiple and interrelated. Pests and pathogens may be among the most important factors related to colony loss (Ratnieks and Carreck 2010).  One of these pests is the bee mite (Varroa destructor).  Mites alone however, cannot account for all the losses in bees.  In fact, the mites arrived to North America in the 80’s, but recently has it been suggested that they play a role in transmission of viruses that affect honey bees.  As Ben explained, the Varroa mite was first found on the honey bee in the USSR in the 60’s and appeared in the USA in the late 80’s. Although mites are believed to be important in the mystery of colony collapse, they are also problematic in general.  Most beekeepers have to treat for the mites no matter what, and this involves chemicals.  Ben has a few tips for natural ways of handling mites.  One is to dust the bees with powdered sugar. As the bees naturally groom themselves to rid themselves of sugar, they will hopefully clean off the mites too.  Natural ways of controlling for mites exist, but as Ben pointed out, they are less effective and involves a significant time investment for beekeepers.

Brood Comb Where the Queen Bee Lays Eggs

Mites and pathogens are probably not something most of us think about, however, there is one factor thought involved in colony collapse that will make us think twice…Pesticides. Pesticides, intended to rid fields and home gardens of insects other than bees, may also play a part in colony collapse. Honey bees forage during the day, collecting nectar and pollen from wild flowers or the flowers of agricultural crops. In doing so, they are subject to the harmful chemicals sprayed on crops or grasses. Honey bees are insects too, and just because they aren’t the target of pesticides doesn’t mean they aren’t harmed by them. If we continue to spray our fields with pesticides or support these practices by buying foods that are farmed with the use of pesticides, we may play more of a role in colony collapse than we would like to believe.  Although pesticides may not the primary cause of the collapse, it appears they are an important part of the puzzle. 

While out with Ben and Mollie, pesticides were mentioned to be a large concern for his 35 hives. Ben’s hives are placed in different agricultural fields, such as cotton and peanut, to help pollination (farmers hire him to complete this essential process). Spraying anywhere around these field can directly affect the foraging honey bees.

In sum, from what we know so far, a combination of agents are likely responsible for colony collapse.  These may include, pests and pathogens (mites, viruses), pesticide use, poor weather conditions that affect a bee’s ability to work, a lack of food, among other stressors. Although here I’ve described threats to domesticated honey bees, similar factors affect wild bumblebees (click here for a summary).  Unlike honey bees, bumblebees must make their own nests and suitable sites can become harder to find in fragmented habitats. Bee declines are indeed complicated, but what is good for the bees does not seem unreasonable. I know I prefer living near pesticide-free farms and landscapes that support flowers and nests for the bees.

Sources:

Ratnieks, F., & Carreck, N. (2010). Clarity on Honey Bee Collapse? Science, 327 (5962), 152-153 DOI: 10.1126/science.1185563

Goulson, D., Lye, G., & Darvill, B. (2008). Decline and Conservation of Bumble Bees Annual Review of Entomology, 53 (1), 191-208 DOI: 10.1146/annurev.ento.53.103106.093454