1、 Distinction

1. Different sources: Poplar catkins grow from poplar. They belong to the seeds of poplar. They will fly out after the poplar flowers mature and crack. Poplar flowers have no dense glands and cannot secrete nectar to lure insects to spread pollen. They can only spread pollen by wind. They belong to wind-driven flowers. Catkins grow from willows. Although they are very similar, they come from different sources. They are the seeds of willows. Willow belongs to unisexual flower, which has no perianth, but has nectary. It can attract insects to spread pollen through nectar. It belongs to insect mediated flower

2. Appearance time is different: Yang Xu usually appears first and can last for a week. Willow catkins appear later, usually after Yang catkins

3. The texture is different: the floc is more cohesive and can be agglomerated. It feels like cotton. The fiber of catkins is delicate, dispersed and gentle

4. The propagation distance is different: most of the Yang catkins are in groups, which is heavier and the propagation distance is shorter. Catkins are lighter and can travel farther with the wind

2、 How to suppress flying catkins

After the emergence of Yang Xu and Liu Xu, it will have a certain impact on people's life. To solve the problem of flying catkins, you can directly cut down and plant other trees without flying catkins. It can also be injected with medicine, which can inhibit them from producing seeds and avoid the emergence of flying catkins. You can also plant only male trees, so that there are no seeds and no catkins