Japanese knotweed commands attention!
Japanese knotweed commands attention with its mesmerizing biological vigor and a prowess unmatched in nature's survival arena. It looms above its diminutive rivals, throwing shade and thwarting their quest for sunlight. But that's not all—its leafy debris unleashes chemical warfare, cunningly stunting the growth of neighboring plants. And here's a surprising twist: while knotweed won't crack solid concrete or topple buildings, it ingeniously sneaks through minuscule crevices in bricks, concrete, and even roads. As winter descends, its foliage is shed, baring brown canes that resemble withered bamboo fingers. Yet, come summertime, knotweed undergoes a remarkable metamorphosis, adorning itself with leaves resembling lovable cartoon hearts, surpassing the size of a human hand. And just before autumn's arrival, clusters of delicate cream-colored flowers grace its splendid presence.
Enter the world of knotweed warriors, where one man truly danced to the rhythm of the seasons. Allow me to introduce Bowes, an unwavering member of the Caerphilly council. When I caught up with him in February, he chuckled, "I'd check my phone after a few hours, and maybe find two voicemail messages. But come May Day, I'd be bombarded with 25 voicemails, all reporting sightings of knotweed."
From the sun-soaked days of summer to the vibrant hues of October, Bowes would be out in the field, rain or shine, even sacrificing his weekends and holidays. Equipped with glyphosate, he would wield his spray, keep a watchful eye on treated areas, and embark on missions to investigate worrisome new infestations.
With a mischievous glint in his eye, he let slip a humorous secret, confessing, "We even skipped the day of the Queen's funeral. You see, the herbicide sprayer's petrol engine tends to make quite a racket, and we didn't want to be disrespectful." Although missing out on a pristine spraying day was a twinge of regret, they made amends by embracing a battery-powered sprayer fit for a regal coronation.
Bowes' job was far from a leisurely stroll—it demanded relentless perseverance and physical exertion. Just imagine Bowes, clad in protective gear—overalls, gloves, and chest-high waders—struggling under the weight of a hefty 20kg tank of glyphosate on his back as he navigated treacherously steep riverbanks to reach the knotweed-infested stretches along the shallow riverbeds.
As for Bowes' weapon of choice, glyphosate, it has not escaped the storm of controversy despite its widespread use. Extinction Rebellion vehemently rallies for its prohibition, the World Health Organization labels it as "probably carcinogenic to humans," and Monsanto, the manufacturer, has faced legal battles concerning its potential health impacts. Yet, the US Environmental Protection Agency remains steadfast in its belief that glyphosate is unlikely to be a cancer-causing agent.
Approaching the topic cautiously, Bowes highlighted the remarkable effectiveness of glyphosate compared to other options. This powerful herbicide seeps through the leaves and canes, finding its way to the rhizome and putting a stop to the knotweed's growth. With repeated applications, the knotweed eventually enters a dormant phase. Bowes emphasized the dire environmental and biodiversity consequences of leaving knotweed untreated. On a sunny day, a quick spritz of glyphosate on a knotweed leaf dries up in a matter of minutes. He described the perfect spraying conditions as a delicate balance of dryness and calmness, ensuring the herbicide stays put without being carried away by the wind or evaporating before absorption.
During stormy weather, Bowes sought refuge in his office, meticulously analyzing satellite images in search of that distinctive burst of lime-green that indicated a knotweed invasion. Once he identified a potential sighting, he ventured into the field to confirm it as knotweed before adding it to the extensive inventory of mapped and memorized knotweed locations in Caerphilly. "We could easily spend an entire week driving around, pointing out knotweed," he mused. "It could be overwhelming, tempting one to give up. But I firmly believe that persistence is the key."
Throughout the years, Bowes has forged an extraordinary connection with his green adversary.." Despite nearly two decades of grappling with this mighty plant, it still eludes his complete mastery, leaving him in awe and cautiously alert. It's a reminder that we often fall into the trap of thinking we have a firm grasp on the natural world, believing we possess more control than we truly do. However, our illusions of grandeur are inevitably shattered: knotweed engulfs nations, viruses escape from unsuspecting markets, and forests burst into uncontrollable flames. In those humbling moments, we confront our profound ignorance head-on. But to remedy the dire consequences of our ignorance, we must summon the courage to once again challenge nature and exert our will upon it.