פירוש על סוכה 3:2

נקטם ראשו פסול – But the Halakha is not according to the anonymous Mishnah, but rather according to Rabbi Tarfon who said further on (Tractate Sukkah, Chapter 3, Mishnah 4), that even if all three [of the myrtles/Hadasim] were broken off, they are valid.

A stolen or withered hadas is invalid.
One [that came from] an asherah or a condemned city is invalid.
If its tip was broken off, or its leaves were detached, or its berries were more numerous than its leaves, it is invalid. But if he diminished them it is valid. But he may not diminish them on the festival.
This mishnah deals with the hadas, the myrtle. Many of the details of this mishnah are the same as those in yesterday’s mishnah concerning the lulav. I will comment only on aspects of the hadas that differ from those of the lulav.
Sections one and two: See sections one and two of yesterday’s mishnah.
Section three: The first two rules of this section are the same as that in section three of yesterday’s mishnah. The third is unique to the hadas. Some hadasim have berries attached to them. While hiking last week I think I actually saw a wild hadas that had many berries (I’m not a botanist, so I’m not sure it really was a hadas). They weren’t really berries as much as little black things that looked liked capers. In any case, too many of these berries renders the otherwise valid hadas invalid. However, the hadas is invalid only if the berries are still on the branch. If he removes the berries, the hadas again becomes valid. Finally, the mishnah states that he may not remove the berries on the festival itself. This is because it is forbidden to “make a vessel” on a festival or on Shabbat and by making an invalid hadas valid, he is making a vessel.

ענביו – the fruit that is upon it that is similar to grapes.

מרובות מעליו פסול – they did not teach other those which are black or red, but if they are green, it is a species of the myrtle/Hadas and it is valid.

ואין ממעטין אותן ביו"ט – that he should have repaired them.