You don't want to bleach out the ecru to white....I would do the old salt and lemon and boiling water trick...stretch the stain over a bowl, moisten with lemon juice, sprinkle salt on it and pour boiling water through it from a height.
It's cotton....the boiling water won't hurt it.

I have soaked many vintage linens In Biz. It’s very good at getting stains out

Biz is an enzyme cleaner and only works on organic protein based stains...not stains resulting from "dye" like ink and colors that ran....and I suspect the berry stain falls into the dye category.

But ti's worth a try!

I think the boiling water trick worked! I did it a good 4 times, and was still not sure it was gone. I was out of time, with having to finish Easter prep, so I hung it to dry in the pantry, and used another cloth instead of this one, my favorite.

This morning (Monday), I looked, and I think it’s gone! Though I still have to look in better light. At least my favorite one is not ruined!

Now I wonder what else this might work on?! I have a huge, full size crocheted one, also ecru, I bought for a song in a resale shop going out of business. It has what looks like coffee or tea spots all over it.

Will this work on colored crocheted knits without removing color? Thanks!

Some older crocheted items may have been colored by placing them in tea until the correct color was achieved then the color was set with vinegar. Was popular both during the depression and in the 60/70's. Not crochet but I did it to muslin to achieve the color I wanted before turning the cloth into items.

And I have done it in spots when I was over zealous removing a stain....and not very successfully might I add!

Hanging stained linens to dry in the sun usually helps, IMPE.

maifleur, I remember my Mom dying some of my grandmother's crochet work in tea when Grandma couldn't get the shade she wanted in crochet cotton. I did it myself not long ago when a wonderful large tablecloth had 2 rows on the end that had been done in a lighter shade. It was challenging to tint just that part and not have the color move into the larger part that was already a good color. I used part tea and part colored water from cooking beets.

Sun? What's that? I have a badly stained piece with panels of rough woven linen interspersed with strips of ecru crochet I've been trying the sun trick on. I've tried everything else for that one. I plan to turn it into a simple blouse, a sleeveless shell, if I'm successful. 2 summers in a row I've tried to remember to put it in the sun.

Supposedly that "sun thing" is a strange golden thing in the sky that casts warmth and happiness over all the earth. I think I remember witnessing it a very very long time ago. I can only imagine what it must be like....

I see it! I see it! Oh, wait, that's a reflection from my ceiling light on the glass!