How to export only send effect with automated on/off?

Hello guys, firstly I´m sorry if I miss something simple and obvious.
What I´m doing is this:
I have a vocal track. I need to apply a delay on it, but only here and there, for a last word of a phrase typically. In other words, the delay should be off for most of the duration, but for a few specific moments, it should turn on, and after a few seconds to turn off as well.
How I´m doing it:
I have an FX track, delay is on its insert effect section. On the vocal track, this is routed as a send effect.
In the delay plugin (waves h-reverb), I have the dry/wet control on 100% wet . I turn this on/off during the track by automating bypass switching on/off. Up to this point all is good. But:
I need to export just the wet signal, with no dry signal present in the exported audio file. When I export only the fx track, it exports always the dry signal too: for the parts, when the delay is bypassed, there is dry vocal, and when the bypass is deactivated/delay is activated, I get my desired wet signal. But how do I get rid of the dry signal coming to the export?
I realise, that as the dry/wet control is bypassed like this too, it makes sense that it doesn´t apply, however, I cannot figure out anythig else that would make a difference - tried to route vocal track to a different group than the fx track, trying to automate different parameters in the delay, like the delay output knob… nothing helps. Tried on Cubase 10.5 and 12. Any advise please?

Automate the send

You can set the send to pre-fader and then turn the volume of the track containing the dry material to silence.
Do this just for the export, then restore the previous settings.

Zip and Johny_Moneto - guys, tried both your advises and both work like charm! Thank you very very much, feel silly now, but foremostly happy and grateful. Appreciated!

No need to feel silly, to get these kind of answers is what the forum is for.
Feel free to remove the “issue” tag from your thread and mark zip’s answer as the solution.