Questions & Answers about Стигла малина — з нового врожаю.
It is simply understood. In Ukrainian, the present-tense linking verb бути (to be) is often omitted, especially in short statements, labels, headlines, and advertising-style phrases.
So Стигла малина — з нового врожаю is understood as something like:
Ripe raspberries are from the new harvest / new crop.
English usually needs is/are, but Ukrainian often does not.
The dash helps mark a pause and shows the connection between the two parts of the sentence when the verb is is omitted.
So the structure is roughly:
- Стигла малина = the subject/topic
- з нового врожаю = what is being said about it
In short, the dash is doing some of the work that English is would do. It also gives the sentence a neat, sign-like, promotional feel.