Hi Horst ,
What a nice photo of the fruit and decorated for the season
Yes, the moth must be very active here because all yuccas bloom here but not all produce seed pod. Some tree yuccas bloom in the spring, summer or late fall.
Non-trunking yuccas here produce the most fruit.
* Whats the winter weather like where you live Horst? The United States has had very mild temps for this time of year but looks like an arctic plunge will rush into the central part of the country from canada and it will be cold in most southern states except their coastal areas.