To arabs there is a big difference between Jewish and Muslim soil. Most of them will refuse anything grown on it due to the Palestinian conflict. So will the orthodox Jewish community if the land is not kosher, but then it is for religious reasons. The arabs have political reasons. The Morrocan merchant in Marakech had a booming business during Ramadan due to the delicious Israeli dates, his collegues who refused to sell them, saw their business declining, but they stuck to their political views rather their financial status.
Yemen's Houthi rebels commit to peace plan in letter to UN chief, BBC reports (Haaretz)
from the article: U.S. demands Israel crack down on illegal Iranian pistachio imports