At an expert committee of members of the European Union on Wednesday, debate raged over whether or not to extent the European license for the herbicide glyphosate — the vote was postponed because the committee could not reach a majority. The next meeting is likely to take place at the beginning of November.

Without a majority vote by the EU member states on the license renewal by December 15, glyphosate will be banned in the EU starting in 2018.

EU branches have been divided over the future of the controversial weed killer. While some segments of the public argue that glyphosate causes cancer, the agriculture lobby says this isn't so — and that anyway, agriculture without glyphosate is too much of a hardship.

The European Commission, the executive branch of the EU, previously recommended a renewal of 10 years — but walked this back when the European Parliament on Tuesday called in a non-binding decision for glyphosate to be phased out by 2022.

The commission is now seeking a five to seven year renewal for the glyphosate license.

Observers say the outstanding decision by the EU members' expert committee could go either way. But if it decides to ban glyphosate in the long run, what would this mean for farmers — and for consumers?

Before planting new crops, farmers kill weed with herbicides so they don't need to plough up the fields

Read more - EU fails to agree on glyphosate license renewal

Less work with glyphosate

Glyphosate is the world's most widely used herbicide. In Germany alone, farmers treat about 40 percent of arable land with it.

The herbicide, marketed by Monsanto under the brand name RoundUp, is a powerful tool in modern agriculture — it's very effective in killing weeds, thus saving farmers a lot of time.

Before sowing, farmers spray glyphosate on their fields to kill unwanted vegetation. Plants absorb the poison via their stems and leaves, and then die.

Especially controversial is when farmers apply the herbicide in preparation for harvesting. This kills all weeds, allowing only the crops to survive. This makes the harvesting process simpler.

Without glyphosate, farmers would need to manually till their land to remove weeds. That would catapult them back into agricultural methods of the 1970s and 1980s, said Michael Lohse, a spokesman of the German Farming Association.

"Glyphosate enabled the revolutionary step to non-plough tillage — which saves time, protects the groundwater and avoids soil erosion," Lohse told DW. "A ban would mean a competitive disadvantage for European farmers compared to farmers in, let's say, South America who are still allowed to use it."

A Danish farmer alleged that glyphosate caused his piglets to be born with deformities

Yet, the German Farming Association is aware of fears that glyphosate may cause cancer, and says it's also in the farmers' interest to clarify possible health threats.

A 2015 study from the World Health Organization's (WHO) International Agency for Research on Cancer found that glyphosate was "probably carcinogenic." But the next year, the European Food Safety Authority and the European Chemicals Agency said the substance was not likely to cause cancer in humans.

The studies used two different approaches, and their results — and sources — continue to be debated.

But right now, Lohse doesn't see any alternative. "There's no other herbicide that is as effective as glyphosate. Farmers would need to use a mix of other herbicides — and who knows whether that would be any better," he added.

Mechanical weed killing more expensive

Where are the grassland butterflies? Broken wings The grassland butterflies that once fluttered over European meadows are disappearing. According to the European Environment Agency (EEA) destruction wild grassland areas has forced butterfly populations down by 50 percent.

Where are the grassland butterflies? Wildflower wilderness Grasslands are rich in wildflowers, such as daisies or wild mustard. Here, you will find butterflies like the Orangetip, the Common blue and the Lulworth skipper. They each feed on different species of plants and flowers. Some prefer to rest on patches of bare ground while others seek the safety of leaves and petals to conceal themselves from predators.

Where are the grassland butterflies? The Common Blue The Common Blue (Polyommatus icarus) was once found across Europe, North Africa and Asia. It can live in low fields near rivers or up high in mountain meadows. But even with its ability to adapt, it has been unable to survive as its habitat disappears - replaced by farms and residential areas.

Where are the grassland butterflies? Intensive farming Intensive farming practices, including the use of powerful fertilizers and pesticides, have made many areas within the European Union too toxic for the grassland butterflies. The EU does include protection of the grasslands in its Common Agricultural Policy, but the guidelines are unclear and the incentives for farmers are too low.

Where are the grassland butterflies? Domino effect The disappearance of the butterflies also affects birds and other creatures that need them for food. There is evidence that when butterfly populations disappear, a domino effect is triggered and animals further up the food chain also start to die off.

Where are the grassland butterflies? Colorful survivor The Orange Tip (Anthocharis cardamines) is rare but has managed to survive the boom in agriculture that has killed of many of its cousins. They are named for the brightly colored wings seen on male specimens. The butterflies live off wild flower nectar and can also drink from open water.

Where are the grassland butterflies? Missing pollinators Researchers studied 17 butterfly species over two decades, tracking their populations, breeding habits and food sources. They warn that butterflies are essential because they help pollinate flowers and serve as a food source for animals. Like the bees, their disappearance is cause for alarm.

Where are the grassland butterflies? Inching along Butterflies often lay their eggs at the tip of grass stalks or flowers, or in protected high grasses. The caterpillars need a place to feed and later cocooned pupa need a place to develop during the cold winter months.

Where are the grassland butterflies? Lonely legacy Two grassland butterfly species have actually seen a slight increase in population size in Europe. The Red-underwing Skipper or Spialia sertorius (pictured) and Mazarine Blue (Cyaniris semiargus). Bt they are not immune to harsh agricultural practices - in the early 1900s the Mazarine Blue disappeared from Britains fields completely.

Where are the grassland butterflies? A chance for survival The Common Agricultural Policy (CAP) may eventually have the power to save these fluttering insects. CAP is currently being revised and if a wider definition of grasslands is included in its regulations, farmers will get direct payments for leaving wild grassland intact. A revised policy is currently being negotiated. Author: Sella Oneko



Researchers agree that no herbicide currently available on the market could replace glyphosate — but some believe that farmers can do fine without it.

"Fundamentally, agriculture can manage without glyphosate," said Hella Kehlenbeck from the Julius Kühn Institute in Germany.

In her research, she estimated the possible costs of a glyphosate ban for German agriculture and found that farming without herbicides "doesn't have to be more expensive in all cases." If the field conditions aren't ideal, however, the costs could be higher than they currently are.

Agricultural economists at the University of Göttingen found that without glyphosate, farmers could lose 4 to 15 percent of crop yield per hectare. The researchers analyzed a crop rotation of rapeseed, wheat and barley.

Among the public, worry over the pervasive substance runs high. A recent citizen's initiative turned in 1.3 million signatures demanding a full ban on glyphosate to the European Commission — enough to require an official response.

But would these consumers also be willing to pay higher prices for non-glyphosate produce?

The German Farming Association is doubtful. "I cannot imagine that supermarkets would pay more for field crops," said Katja Börgermann, a pesticide expert at the association.

But conventional farmers could learn from organic farming. Organic produce is farmed without chemical herbicides, products are branded as organic, and higher costs are passed along to the end consumer.

In places like Germany, the organic sector has been booming.

Although more time consuming, weed control without herbicides secures habitat for wild herbs

Can a glyphosate ban boost the economy?

Biodiversity has decreased massively over past decades — in regions such as Germany, this is due largely to modern agricultural practices, including overuse of pesticides and herbicides. "Plants, insects and birds have their natural habitat on farmland. This diversity has been strongly affected by the use of herbicides such as glyphosate," said Jörn Wogram from the German Environment Agency.

This loss of biodiversity amounts to a large sum, ecologically and economically.

Beyond that, authorities regularly control compliance with limits on herbicide and pesticide residues in groundwater, rivers and lakes. Herbicides often contaminate groundwater, resulting in higher costs for water treatment.

If all those costs are considered, it "can be said that a ban of glyphosate and other herbicides could overall be cheaper," said Wogram.

The environment agency is currently analyzing all so-called external costs of chemical herbicides, including costs for farmers and consumers becoming ill as a result of exposure.

The results of the study will be published next year. "Then we will see the overall picture of chemical herbicides, and be able to draw conclusions on where we can save money," Wogram concluded.