Apple of the Week – McIntosh Apples

September 3, 2015 at 5:21 AM | Posted in Apple of the Week | 3 Comments
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McIntosh apples on a tree

McIntosh apples on a tree

The McIntosh, McIntosh Red, or colloquially the Mac (pronunciation: /ˈmækɨntɒʃ/ mak-in-tosh – the same as Macintosh) is an apple cultivar. The fruit has red and green skin, a tart flavor, and tender white flesh, which ripens in late September. In the 20th century it was the most popular cultivar in Eastern Canada and New England, and is considered an all-purpose apple, suitable both for cooking and eating raw. Apple Inc. employee Jef Raskin named the Macintosh line of personal computers after the fruit.

John McIntosh discovered the original McIntosh sapling on his Dundela farm in Upper Canada in 1811. He and his wife bred it, and the family started grafting the tree and selling the fruit in 1835. In 1870, it entered commercial production, and became common in northeastern North America after 1900. While still important in production, the fruit’s popularity fell in the early 21st century in the face of competition from varieties such as the Gala. According to the US Apple Association website it is one of the fifteen most popular apple cultivars in the United States.

 

 

The McIntosh or McIntosh Red (nicknamed the “Mac”), is the most popular apple cultivar in eastern Canada and the northeastern United States. It also sells well in eastern Europe.

A spreading tree that is moderately vigorous, the McIntosh bears annually or in alternate years. The tree is hardy to at least USDA Hardiness zone 4a, or −34 °C (−29 °F). 50% or more of its flowers die at −3.1 °C (26.4 °F) or below.

The McIntosh apple is a small- to medium-sized round fruit with a short stem. It has a red and green skin that is thick, tender, and easy to peel. Its white flesh is sometime tinged with green or pink and is juicy, tender, and firm, soon becoming soft. The flesh is easily bruised.

The fruit is considered “all-purpose”, suitable both for eating raw and for cooking. It is used primarily for dessert, and requires less time to cook than most cultivars. It is usually blended when used for juice.

The fruit grows best in cool areas where nights are cold and autumn days are clear; otherwise, it suffers from poor color and soft flesh, and tends to fall from the tree before harvest. It stores for two to three months in air, but is prone to scald, flesh softening, chilling sensitivity, and coprinus rot. It can become mealy when stored at temperatures below 2 °C (36 °F). The fruit is optimally stored in a controlled atmosphere in which temperatures are between 1.7 and 3.0 °C (35.1 and 37.4 °F), and air content is 1.5–4.5% oxygen and 1–5% carbon dioxide; under such conditions, the McIntosh will keep for five to eight months.

 

A McIntosh illustrated in 1901

A McIntosh illustrated in 1901

The McIntosh is most commonly cultivated in Canada, the United States, and eastern Europe. The parentage of the McIntosh is unknown, but the Snow Apple (or Fameuse), Fall St Lawrence, and Alexander have been speculated. It is one of the top five apple cultivars used in cloning, and research indicates the McIntosh combines well for winter hardiness.

If unsprayed, the McIntosh succumbs easily to apple scab, which may lead to entire crops being unmarketable. It has generally low susceptibility to fire blight, powdery mildew, cedar-apple rust, quince rust, and hawthorn rust. It is susceptible to fungal diseases such as Nectria canker, brown rot, black rot, race 1 of apple rust (but resists race 2). It is moderately resistant to Pezicula bark rot and Alternaria leaf blotch, and resists brown leaf spot well.

The McIntosh is one of the most common cultivars used in cloning; a 1996 study found that the McIntosh was a parent in 101 of 439 cultivars selected, more than any other founding clone. It was used in over half of the Canadian cultivars selected, and was used extensively in the United States and Eastern Europe as well; rarely was it used elsewhere. Offsprings of the McIntosh include: the Jersey Black hybrid the Macoun, the Newtown Pippin hybrid the Spartan, the Cortland; the Empire; the Jonamac, the Jersey Mac, the Lobo, the Melba, the Summered, the Empire, the Tydeman’s Red, and possibly the Paula Red.

 

 

Apple trees were introduced to Canada at the Habitation at Port-Royal (modern Port Royal, Annapolis County, Nova Scotia) as early as 1606 by French settlers. Following its introduction, apple cultivation spread inland.

The McIntosh’s discoverer, John McIntosh (1777 – c. 1845–46), left his native Mohawk Valley home in New York State in 1796 to follow his love, Dolly Irwin, who had been taken to Upper Canada by her Loyalist parents. She had died by the time he found her, but he settled as a farmer in Upper Canada. He married Hannah Doran in 1801, and they farmed along the Saint Lawrence River until 1811, when McIntosh exchanged the land he had with his brother-in-law Edward Doran for a plot in Dundela.

While clearing the overgrown plot McIntosh discovered some wild apple seedlings on his farm. He transplanted the seedlings next to his house. One of the seedlings bore particularly good fruit. The McIntosh grandchildren dubbed the fruit it produced “Granny’s apple”, as they often saw their grandmother taking care of the tree in the orchard. McIntosh was selling seedlings from the tree by 1820, but they did not produce fruit of the quality of the original.

John McIntosh’s son Allan (1815–1899) learned grafting about 1835; with this cloning the McIntoshes could maintain the distinctive properties of the fruit of the original tree. Allan and brother Sandy (1825–1906), nicknamed “Sandy the Grafter”, increased production and promotion of the cultivar. Earliest sales were in 1835, and in 1836 the cultivar was renamed the “McIntosh Red”; it entered commercial production in 1870. The apple became popular after 1900, when the first sprays for apple scab were developed. A house fire damaged the original McIntosh tree in 1894; it last produced fruit in 1908, and died and fell over in 1910.

Horticulturist William Tyrrell Macoun of the Central Experimental Farm in Ottawa is credited with popularizing the McIntosh in Canada. He stated the McIntosh needed “no words of praise”, that it was “one of the finest appearing and best dessert apples grown”. The Macoun, a hybrid of the McIntosh and Jersey Black grown by the Agricultural Experiment Station in Geneva, NY, was named for him in 1923. In the northeastern United States the McIntosh replaced a large number of Baldwins that were killed in a severe winter in 1933–34. In the late 1940s, Canadian ambassador to the United Nations Andrew McNaughton told Soviet Minister for Foreign Affairs Andrei Gromyko that the McIntosh Red was Canada’s best apple.

The McIntosh made up 40% of the Canadian apple market by the 1960s; and at least thirty varieties of McIntosh hybrid were known by 1970.

 

 

An apple in a market.

An apple in a market.

Its popularity later waned in the face of competition from foreign imports; in the first decade of the 21st century, the Gala accounted for 33% of the apple market in Ontario to the McIntosh’s 12%, and the Northern Spy had become the preferred apple for pies. Production remained important to Ontario, however, as 30,000,000 kilograms (66,000,000 lb) of McIntoshes were produced in 2010.

The original tree discovered by John McIntosh bore fruit for more than ninety years, and died in 1910. Horticulturalists from the Upper Canada Village heritage park saved cuttings from the last known first-generation McIntosh graft before it died in 2011 for producing clones.

 

3 Comments »

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  1. OMP! I ❤ apples – any kind – any shape – any where! Snorts and oinks. XOXO – Bacon

    • Me too, favorite is Honey Crisp and Envy Apples.

      • Gala’s are great and at times I love the Granny Smith’s. Heck, I’ll eat any of them. XOXO – Bacon


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