Laravel 5.0 destroy method

I can figure out why i am not accessing me destroy method. Blade:

@foreach($advertisements as $advertisement)
<form class="form-horizontal" method="delete" action="advertisements/{{ $advertisement->id }}" accept-charset="UTF-8">

                <div class="form-group">
                  <h2> {{ $advertisement->title }}</h2>
                    {{$advertisement->city}} {{ $advertisement->type }}
                        <input class="btn-danger" type="submit" value="Delete add">
                </div>
        </form>

Controller:

public function destroy($advertisements)
{
    Advertisement::find($advertisements)->delete();

    return redirect('advertisements');

}

route:list | DELETE | advertisements/{advertisements} | advertisements.destroy | App\Http\Controllers\AdvertisementsController@destroy

via Chebli Mohamed