dry or poison - Crocosmia

Hi - I look after a garden bed, which actually belongs to the flats in which I live.
I like to garden organically, and without poison.
Recently the garden group did some work including putting poison in some areas.
I was assured this was not put on my Crocosmia, that they naturally dry up at this time of year - however, I don't remember it looking like this.
What do you think?
I like to garden organically, and without poison.
Recently the garden group did some work including putting poison in some areas.
I was assured this was not put on my Crocosmia, that they naturally dry up at this time of year - however, I don't remember it looking like this.
What do you think?

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I have some pics of moss too which I'm wondering if it has been poisoned?
When you say they used "poison", do you know what it was ?
Don't think anything else would have been spilled in that area.
I wasn't sure if t he brown bits weren't poisoned.
thanks for your time and thoughts.
no, I don't know what it was.
it's good to have your views.
It was just curious synchronicity after I know poison was sprayed around the garden, and definitely along the grass coming along from the bed.
I so wish they wouldn't insist on this management strategy - there is so much that can be done successfully without poison.