Are We Overcomplicating Weed Control?

Electric Weeders Present a Simple Solution

Pest management is top of mind on the farm as summer gets into full swing. Electric weeders are presenting a simple and affordable solution for farmers looking to eradicate resistant varieties. Summer is a critical time for weed free crop development, and also a time when farmers reassess management decisions as emergent weed issues become fully apparent. The question of how and when to combat pesky weeds continues to expand beyond chemical formulation selections into integrated pest management strategies. 

All farm decisions are about to prove successful, or not. Current data suggests electric weeders could work their way to the forefront of pest management protocol due to their effectiveness at targeting weeds, their minimal impact on environmental health and the fact that they are a relatively affordable option for farmers looking to shift strategies. 

Will electrocution become the simplest and most universally adopted pest management strategy?

How Do Electric Weed Zappers Work?

The concept of using electricity to kill a plant has been around for a long time. High volts of electricity explode cell walls, killing a single plant down its roots. Unlike herbicide which tends to suppress weed growth, electrocution has proven to eradicate weeds, even preventing seed development. For farmers currently working to be regulatory parameters and fit in a second round herbicide application, using electricity presents an interesting option.

The option becomes more interesting when we consider that, across the globe, nations are working to combat chemical resistant weeds that threaten some of our most important commodity crops. If electrocution is as effective as suggested, it could be a fairly simple solution to a complex agricultural conundrum. Electricity has proven to be 95% effective for above canopy weeds and it has shown to decrease seed viability by between 54 and 80%.

On the farm, the process and the equipment have continued to become more efficient. Whether at soil level or canopy height, the latest machinery can target weeds without touching income producing crops. Modern technology has also moved electric weed zappers into the self propelled category. 

Are Electric Weeders Safe for the Environment?

Defining crop protection success is formulaic but also unique to individual operational goals. Farmers are always weighing the quality and quantity of a harvest in relation to the financial investment of production methods. Modern farming also requires farms to consider how they prioritize nutrient retention, resource management, wildlife habitats and the health of plants, soil and water as they work to achieve predictable profit margins. As robotics, data driven precision tech, and non chemical strategies hit the market, destroying weeds while protecting crops has become a very complex pursuit.

Electric weeders could simplify the situation. Using electricity as weed control is appealing because so far, the method has had minimal negative effects on the environment. Unlike chemicals that can leave harmful residue in soil or water, electricity leaves no toxins behind. Plant electrocution also has little effect on soil microbes and insects suggesting it could be the most sustainable method of weed control available. Farmers might not have to choose between water health and predictable crop yields.

Even in terms of energy usage electric weeder machinery proves easier on the environment since it leverages mechanical energy to create electricity. Farmers are not consuming more energy by utilizing this method than they would be to plant cover crops or deliver multiple rounds of herbicide. In fact, manufacturing and transporting herbicides requires far more energy if we examine its full life cycle of each option.

Can Farmers Afford Electric Weeder Equipment?

The most promising attribute of electric weeder equipment might be its affordability. The machinery presents a cost saving solution to many farm operations from organic to conventional.

Organic farms paying laborers to weed by hand can pay as much as $20 an hour. It would take a single person moving at a moderate speed between 50 to 200 hours to weed just one acre by hand, depending on the type of crop and the density of weeds. It's easy to see how daily wages can create a hefty pest management expense column. Electric weeders would eliminate the need for laborers while still allowing an organic farm to protect crops without chemicals or environmental destruction.

But conventional farmers have begun to favor electricity for its money saving attributes as well. The cost of a new machine can run between $80,000 for a boom to attach to an existing tractor to $305,000 for a self propelled tractor with an extra long boom. Farmers who can cut the cost of fuel and chemicals by using an electric weeder say they can pay off equipment investments in five or less years depending on the model. And, for organic farmers the timeline is even shorter.

Minimal chemical usage means farmers could be paying less for water filtration systems, soil cleaning and pest resistant seed varieties. In theory, every year the farm should have fewer and fewer weed problems. Farms would experience all the benefits of weed eradication without the current side effects of chemicals. 

Why Aren’t More Farmers Buying Electric Weeders?

One of the primary reasons farmers don’t purchase electric weeders is that current options lack versatility. Though machinery has come a long way, most options still target canopy weeds and therefore, electrocution is viewed as a rescue strategy rather than a preventative model of pest management. The more fine tuned this equipment becomes, the more we could see electricity used sooner before weeds reach canopy levels. Similarly, equipment could evolve to become crop specific and in turn, the more efficient choice for farmers.

Electric weeders have specifically targeted the organic sector, seeing an opportunity to reduce production costs for growers looking to bring cheaper goods to market. From this perspective we are reminded that while electric weeders are a smart choice because they have minimal negative impacts, they might only truly win consumers who operate in a niche market. Organic farmers stand to gain the most by switching to electric pest control followed closely by farmers battling chemical resistant weeds. Beyond that, farmers are likely considering electricity as one of many tools used to protect crops and boost yields.

Yet, electricity is a well recognized and simplistic form of weed control. It's one that could continue to progress in popularity as it leverages modern technological advancements, becoming an increasingly efficient pest management tool. Farmers who find integrated pest management strategies too complex to build could return to tried and true methods. Will we see a reversal of trends, where electrocution is used as a primary weed control strategy and chemicals become a secondary rescue option?