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Invasive Weed Threatens Carrot Crops in France

Vegetable producers in the Manche region warn that the aggressive spread of nutgrass is devastating local harvests and threatening the survival of family farms.

By 3 min read

Vegetable growers in the Manche department of France are facing a severe agricultural crisis due to the rapid proliferation of an invasive weed known as nutgrass. The persistent plant is overrunning crop fields, particularly carrot plots, and severely damaging yields across the region. Local farmers warn that without immediate and effective intervention, several agricultural operations could be forced to shut down permanently.

During the current growing season, fields that should typically display vibrant green vegetation are instead heavily choked by the intrusive weed. Romain Corruble, a farmer based in Créances, explained how the plant severely stunts crop growth. Pointing to starkly contrasting vegetables he harvested from his land, he stated that the weed has suffocated the crop and prevented proper development. Over a third of his fields are already lost, resulting in financial damages totaling 75,000 euros.

Originally native to the Mediterranean region, nutgrass has successfully colonized the local dunes and spreads at an alarming rate. Each individual plant is capable of producing more than a thousand seeds annually, making eradication extremely difficult. Corruble described the plant as endless in its reproduction, noting that cutting or weeding the fields does nothing to stop it, and it manages to thrive even under drought conditions.

Agricultural experts have debated the best approach to halt the invasion, with some recommending thorough cleaning of farming equipment to prevent the transfer of bulbs between different fields. However, local agricultural technicians argue that machinery is no longer the primary driver of the spread. Dominique Diaz, a technician with the Vegetable Producers Group of Manche, stated that focusing on cleaning harvesters misses the broader reality of the crisis, noting that the situation has progressed far beyond that stage.

Many local farmers point out that the weed did not pose a significant commercial threat prior to the regulatory bans on certain pesticides suspected of being potentially carcinogenic. Consequently, agricultural representatives are strongly demanding new protective measures. Philippe Jean, former president of the Vegetable Producers Group of Manche, emphasized the urgent need for chemical solutions to ensure the economic viability of small farming structures, stating that alternative methods simply are not working.

The environmental challenge is also expanding geographically. While the infestation initially impacted specific coastal areas, farming operations across Normandy that were previously unaffected have now detected the presence of the weed. The invasive plant has steadily widened its footprint, stretching from the northern Cotentin Peninsula all the way down to the bay of Mont Saint Michel.

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