The Greek citron variety of citrus medica (Hebrew: אתרוג קורפו or יְוָנִי) was botanically classified by Adolf Engler as the "variety etrog". This is remarking on its major use for the Jewish ritual during Sukkot, due to its supposedly extraordinary natural beauty. It was also called Pitima, or the Cedro - Citron with a Pigolo - a Pitom, because its usually persisting pitom (carpel). The last does not only enhance its character, but also adds Halachic promotion.
Those specific promotional characteristics were considered a threat to other varieties, resulting in more conflicts and controversies than any other ritual species.
Role as Etrog 
The variety was initially cultivated at the Ionian Islands, of which Corfu is the most prominent one, and that's why Jews sometimes call this the Corfu Etrog. While citron trees are still found on Corfu, and in Naxos, the citron is no longer exported from Greece for the ritual purpose. The Crete citron growers sell it for the candied peel, which is called succade, and in Naxos it is distilled into a special aromatic liqueur called kitron.
According to the Romaniotes this variety of citron was in their hands since the times of the Second Temple or earlier, and was always used by them for the religious ritual. Afterwards it was appreciated by the Sephardim who settled in Italy, Greece and Turkey, after their exile from Spain in 1492.
Historically speaking, the citron is considered by numerous writers, to be introduced to Europe by the troops of Alexander. It was also described by Theophrastus who succeeded Aristotle as the curator of the Botanical garden in Athens, although it is not certainly clear if they had this specific variety. We don't find a clear illustration of it until the year 1708, when Johann Christoph Volkamer illustrated it with engraving and text in his Hesperides 1708, and applied to it the name Juden-Citronat. He was probably the first to associate this variety wearing a Pitam to the religious rite, and this is indicating that the variety was already used by Jews in Italy at that time.
In Ashkenazi hands 
When the Corfu started to be imported into the rest of Europe in 1785, the communities adherent through Ashkenazi tradition to the Genoese variety were very skeptical about it. The Ashkenazim assumed that since the Greek is so much different from the Genoese, it might have been grafted or hybridized. At the beginning of the 19th century, when the Yanova Esrog was ceased due to the battles of Napoleon I of France, it really started to dominate the market.
Rabbi Ephraim Zalman Margolis in his responsa Bet Ephraim (volume 1;56) confirmed that time, that no grafted citron trees are found on the grounds of the Corfu Island. He argues that even if we cannot verify if the plant were propagated by cuttings of grafted plants since the tradition lineage is missing, it should still be considered kosher. Therefore he is concluding that in case no nice, clean and kosher "Yanove Esrog" is to be found, the Corfu Etrog may be used instead. This certification as well as the lenient position of many other authorities, eventually opened doors for the permission of this Etrog.
While the Greek market expanded, citrons were also imported from the shores of Greece itself, especially from the regions of Parga, Rapiza and Agia. Now the conflict was if those plantations are in the same state of kashrus each to another, and to the ones of the Corfu Island.
This controversy started in 1846 when Alexander Ziskind Mintz, an Ashkenazi merchant, started claiming that only those from Parga, the origin of his etrogs, are kosher. He claimed that one could not be sure whether those picked at other places, from newly planted trees, were grafted or not—at least without careful tree checking upon picking. The local Sephardic rabbis in head of Judah Bibas the Chief Rabbi of Corfu, kept arguing that all of them are kosher, and that not one grafted tree is to be found on the island of Corfu as well as at the other regions of cultivation. Their position was supported by the great Rabbi Chaim Palagi the chief rabbi (Hakham Bashi) of İzmir in neighboring Turkey.
The dispute ended up with Rabbi Shlomo Kluger banning all sources including, those of Mintz, which were said to be from Parga, and Rabbi Joseph Saul Nathanson permitting all sources, if they bore a certification from the local rabbis.
The Monopoly and its Break 
This controversy did not significantly decrease the abundance of the Corfu since its natural beauty was still able to survive a lot, and the good luck of the Corfu influenced the cultivators that whatever will happen, their citron will proceed...
In 1875 they incorporated themselves into a cartel and drastically raised the price of each single etrog to six florins, assuming that the Jews would have no choice and pay the price.
There was an underlying illusion that there is a belief by the Jews that whoever doesn't reveal a Corfu Etrog for Sukkot will not survive the next year.
However, this was not the case. The rabbi of Kovno, Rabbi Yitzchak Elchanan Spektor intended to stop this record breaking monopoly, and banned the Corfu Etrog until the prices would be lowered, and the status of kashrus clarified. Even the rabbi of Corfu certified in a letter that there were already many grafted trees in the region, and the certification process was very complex. The ban was further supported with signatures of many leading rabbi's throughout Eastern Europe.
The preferred etrog was now the Balady citron of Israel, which just started being imported, but they placed even the Corsican citron above the Corfu, while the most respected Genoese citron was very hard to get.
Each Jewish etrog merchant committed himself to his local rabbi that he would not buy any etrog from the Greek farmers, since this would result in a record breaking expense for the Jewish community, which was impossible for them to pay. This was a great sacrifice from the local Jewry in Corfu, which remained with no income for the year.
This act severely affected the Greek planters and dealers, and caused them to remain with the high costs and no salary, forcing them to stop to monopolize the prices.
The Blood Libel and Pogrom 
In fifteen years later at the pre-Pesach season of 1891, an unidentified female body was found on a street neighboring the Jewish Ghetto. The Greek Etrog growers called the police with a claim that this was the work of the Jewish fellows.
The local Church officials on Corfu (as well as on the other Ionian Islands) maintained a deliberate neutrality during the anti-Semitic events and did not support the government's efforts to reestablish order, unlike the high echelons of the Church who took measures to limit the anti-semitic mood. Similarly the Greek press played a role in publicizing the unfairness of the accusations. The culprits were never prosecuted however.
After several days of violence, a short investigation found that the victim was Sarda, a member of a famous Jewish family on the Corfu Island, who was killed in sexual violence. The discovery was too late for the total of 139 dead, and this composed the Jewish saying "Rather should the etrog have a "blatt-flaw" (a flaw caused by a scratch from a leaf), but not in any case a "blood-flaw", referring to the blood spill in Corfu.
Partial decline 
As a result the Greek citron drastically declined in the eastern European communities that switched to the Balady etrogs, but was still doing well in the western European and Hungarian communities, especially with the Hungarians. (Jews from Hungary customarily used the Greek etrog, considering it beautiful, and wouldn't accept an etrog without a Pitam.)
After World War II, when all who remained with their lives through the Nazi Concentration camps settled eventually in Israel or the United States, some still continued using the Greek for at least two decades.
From then on he realized that no Etrog could be picked off the tree without a careful inspection, which he was allowed and able to do.
By the Greek, in contrary, the planters didn't let any Jewish merchants to visit their orchards, neither to check their trees, and only sold etrogs in the Island of Corfu. This forced many Satmars to switch back to the traditional Yanova Citron, even not wearing a Pitam. The cultivation of the Greek citron is from now on concentrated in Halki, Naxos where there is a small production for distillery.
Introduction to Israel 
|Citrus • Succade • Hybrid • Grafting • Chimera • Etrog • Sukkoth • Four Species
The Greek citron would have been completely lost, if something would not happen, which established it in another part of the world, namely Israel.
At about 1850, Sir Moses Montefiore was instrumental to establish etrog plantations in the Holy Land, in order to help the Jewish settlers to survive. As the Balady had minor chance for success being not so great in shape, color etc., with a persistent style ratio as low as 1;1000 – the Sephardic settlers who were always positive about the Corfu, planted its seeds at coastal region of Israel, especially in region of Jaffa. The transplantation was witnessed as kosher by the local Sephardic Rabbi Yehuda Halevi.
Arab farmers imported cuttings from Greece, which they budded onto lemon rootstock for longer life. The Corfu variety, which they called Kubbad abu Nunia (-the citron with persistent style), did not acclimatize well in Israeli land, so growers started grafting on a large scale.
The great scholar and kabballist Rabbi Aaron Ezrial of the Beit El Synagogue, still certified some ungrafted citron orchards in Jaffa by eliminating the plants he found to be grafted. The Greek-Jaffa citron was also promoted by most of the Sephardic and even some Ashkenazic rabbis who saw a great future in those beautiful and Pitamed citron. The permission was based upon inspection each and every tree prior to pick, just like it is practiced today in Calabria. The major Ashkenazic authorities in Jerusalem at that time were Rabbi Meir Auerbach and Rabbi Shmuel Salant, who permitted only the Balady plantations.
In the following time the Balady was no longer able to compete with the much nicer Greek Citron, and went off the market. In reaction, the Jaffa Rabbi Abraham Isaac Kook, who founded and headed the "Atzei Hadar" union for kosher etrog cultivators and marketers, very much promoted intraspecific grafting upon Balady citron rootstock, which is permitted by Halacha.
The act lead to the establishment of a beautiful variety in Israel, yet kosher, and saved the economy of Israel for decades. As of today it is the leading variety in Israel, and is a very important article in international trade.
Although the graft of Greek citron upon Balady rootstock was a great idea from practical and Halachic views, it induced suspicion from customers who wondered why the Israeli citron was suddenly so beautiful with an erect Pitam. Disbelief arose in Israel and in Diaspora, and many rumors spread .
We find the late Grand Rabbi of Munkatch, namely Chaim Elazar Spira being aware about the change. He speculated that it was the same problem continuously claimed against the Greek in their homeland Greece, namely to be grafted or bred with Lemon, which renders it non-kosher.
This was not completely false, since those not supervised were of course grafted also upon Bitter orange or lemon. Also, even with supervision it is very hard to detect the rootstock type, while not the same as the scion.
Later an ungrafted tree was found in the backyard of a Shochet in Hadera with the name Ordang. Today, most Hasidic communities in Israel as well as in Diaspora are using descendants of this strain when planted under Hashgacha.
See also 
Cited references 
- The Standard Cyclopedia of Horticulture, vol 2, by Liberty Hyde Bailey, 1914
- The Gardener's Monthly and Horticulturist
- Jerusalem Post
- The Corfu Blog: 25 January 2009
- Agro Travel Greek Naxos
- by the Grand Rabbi of ראדזין, printed in the end of his work named סוד ישרים עה"ת
- Shipped through Venice, Rabbi Daniel Tirni of Firenza (Florence, Italy) in his work namedעיקרי הדינים Ikrei HaDinim (or haD"T), chapter 33.
- * מכתם לדוד להרב דוד פארדו, סימן יח. For more reference see bellow.
- See Wikipedia Article on Citron
- See Wikipedia Article on Citron
- Oekonomische Encyklopädie
- Traité du citrus By Giorgio Gallesio
- בית מאיר בתשובה הנדפסת סוף או"ח
- ליקוטי תשובות חתם סופר סימן כה
- Cultural Geography - Google Book Search
- Commentary - Google Book Search
- ילקוט פרי עץ הדר לבוב תר"ו
- שו"ת לב חיים ח"ב סימנים קכא-קכג
- טוב טעם ודעת מהדו"ק סימן קעא
- שו"מ מהדו"ג ח"א סימן קמד
- The Greek Orthodox Church and the Holocaust by The University of Crete
- Mishpach Magazin: 12 Tishrei 5767
- מסעות ישעיה להרב ישעיה גראס מברוקלין
- קונטרס בירור הענינים בדבר האתרוגים מיאנאווע להנ"ל
- קונטרס פרי עץ הדר, אתרוגי מאראקא, להרב ישראל דוד הרפנס
- קונטרס פרי עץ הדר ירושלים תרל"ח, השותפים סלנט
- The Purdue University
- Responsa of Minhath Elazar Volume 3;77.
- שו"ת סבא קדישא סימן יב-יג
More references 
HaLevanon Links 
The etrog controversy in the years of 1875-6, was mainly led by the Hebrew Newspaper HaLevanon, between the letters from both sides we can obtain very much important information. Today, it is digitized and available online by the Hebrew University of Jerusalem, following are some links to it.
- HaLevanon 7 - no 32 - browse right to page 2
- HaLevanon 11 - no 7,no 35, no 36,no 39 The ruling of Rabbi Spektor,no 41,no 44,no 45,no 46 - see also page 6,no 50.
- HaLevanon 12 - no 1 - go to page 3,no 2, no 3,no 4,no 5,no 6, no 7, no 43,no 49, no 50
- HaLevanon 13 - no 3 - go right away to page 4, no 8 - go right to page 3,no 42,no 47.
Google Books 
- Origin of Cultivated Plants By Alphonse de Candolle
- Mansfeld's encyclopedia of agricultural and horticultural crops ..., Volume 4 By Peter Hanelt, Rudolf Mansfeld, R. Büttner
- The Mediterranean Diets in Health and Disease
- A History of the Jews in Modern Times
- The Extra-ordinary History of Etrog
- Essay by Eliezer Segal
- Innvista page about citrons
- The Citrus Variety Collection by the University of California Riverside
- Citrus Pages
- Corfu Pogrom
- Remnants of ancient synagogue in Albania or by Science Daily
- Greek Legends and Stories By M.V. Seton-Williams
- The Jewish Encyclopedia Etrog Corfu
- The Encyclopedia of Jewish Life Before and During the Holocaust
- In the Arboretum Today
- The Jewish Encyclopedia Etrog Corfu
- Foods and Nutrition Encyclopedia By Audrey H. Ensminger
- Viroid infection on Etrog Citron by the USDA