According to the latest forecast and analysis, Beijing is about to enter its first peak period of catkin dispersal, primarily from female white poplars, with the central urban area within the Fifth Ring Road being the key affected zone. The swirling white fluff in the air causes many people to experience itchy noses, red eyes, and constant sneezing.
Willow and poplar catkins arrive punctually every year, and various claims circulate online. Let’s now debunk these common misconceptions one by one and uncover the truth.
What are the common misconceptions about willow and poplar catkins?
Misconception 1: The flying fluff is the flower of willow or poplar trees.
The “true identity” of the flying fluff is seeds, not the tree’s flowers as many believe. In spring, after the female tree’s inflorescences are fertilized, they produce small seed capsules. When these capsules mature and split open, the white down enveloping the seeds inside is released and carried by the wind, creating what we see as willow and poplar catkins.
Misconception 2: Since willow and poplar catkins are a nuisance, we should just cut the trees down.
Willow and poplar trees have not been indiscriminately cut down because they possess significant advantages such as fast growth, excellent shade provision, strong carbon sequestration, and low cost. In the past, when urban greening resources were limited, these trees became the absolute mainstay of planting due to these benefits, providing ample shade for pedestrians in summer.
It is stated: “We cannot conduct large-scale, one-time felling of all mature willow and poplar trees. For example, poplar trees with a trunk diameter of 30 centimeters are typically over thirty or forty years old. If we plant new saplings with a diameter of 5-6 centimeters, it would take at least another thirty to forty years for them to grow into mature trees with a trunk diameter of 30-40 centimeters. During this period, the ecological benefits of the trees, including soil and water conservation functions, cannot be quickly replaced. In the process of renewal and renovation, we will gradually replace old, weak, diseased, or female trees.”
Misconception 3: Willow and poplar catkins cause allergies.
“There is currently no research indicating that catkins themselves cause allergies. However, their surfaces easily adsorb allergenic substances like pollen and dust. When sensitive individuals come into contact with these, it may trigger symptoms such as skin itching, rhinitis, or even asthma.” It is recommended that individuals with allergies take comprehensive protective measures when going outdoors, take anti-allergy medication in advance if necessary, and seek timely medical attention if persistent discomfort occurs to identify allergens.
Misconception 4: It’s no big deal to set willow catkins on fire.
Catkins contain about 90% fiber and oil. Their surface down fully combines with oxygen in the air, making them highly flammable upon contact with an open flame, with fire spreading extremely rapidly. Experiments show that a significant blaze can form in just 3-5 seconds. In one incident, two individuals resting outdoors ignited poplar catkins. Sparks instantly set dry grass ablaze, and the fire burned approximately 80 square meters of grassland within 30 seconds. Ultimately, one person was placed under administrative detention, and the other was criticized for failing to stop the act promptly.
How to effectively protect yourself during catkin season?
Personal protection during catkin season can be summarized in six words: Avoid, Cover, Sweep, Check, Clean, Prevent.
Avoid: Try to avoid going outdoors between 10 AM and 4 PM. Opt for early morning, evening, or times after rain.
Cover: Wear masks, protective goggles, long-sleeved clothing, and hats to minimize skin and mucous membrane exposure.
Sweep: Promptly sweep away accumulated catkins indoors and outdoors to prevent them from lingering.
Check: Inspect window and door screens, air conditioner filters, etc., to prevent catkins from entering indoors through gaps.
Clean: Wash your face, rinse your nasal passages, and change outer clothing after returning home. If catkins get into your eyes or contact your skin, rinse with clean water; do not rub or scratch.
Prevent: Do not play with fire, do not discard cigarette butts carelessly, stay away from areas where catkins accumulate, and strictly guard against fire hazards.
