Reel mower seed propagation

[frose]

In the last two years I switched from a rotary lawn mower to a trimmer reel. This year I have had an explosion of spurge and water grass in my Bermuda lawn which I can't explain, as the only change in my routine is switching to a reel mower. My neighbor has no such problem and only takes minimal care of his lawn. My question is, does a bagged rotary mower suck the seeds and capture them in the bag, compared to a reel which spreads them to the open catcher and air?

 

[Mr_Yan]

Yes a bagging mower will catch seeds. Some people say to mow a lawn with a bagging mower to remove seeds for things like crab grass.

But the mower won't spread seeds that weren't there already.

 

[DirtMechanic]

Or chips of plants like dichondra which can propogate from cuttings.

 

[Mr_Yan]

...can propogate from cuttings.

Now if I only had the problem of perennial rye sprouting from cuttings after I mow with my reel mower

 

[DirtMechanic]

Now if I only had the problem of perennial rye sprouting from cuttings after I mow with my reel mower

You would think the seed companies might frown on that type of grass.