The wild species originated in the Andes Mountains of South America, probably mainly in Peru and Ecuador, and is thought to have been domesticated in pre-Columbian Mexico its name is derived from the Náhuatl (Aztec) word tomatl. pimpinellifolium) is a closely related species and has been used by breeders to hybridize several pest- and disease-resistant tomato varieties. Many of these problems can be controlled with crop rotation, the use of fungicides and pesticides, and the planting of resistant varieties. The plants are susceptible to a number of pests and diseases, including bacterial wilt, early blight, mosaic virus, Fusarium wilt, nematodes, and tomato hornworms. Tomatoes are usually staked, tied, or caged to keep the stems and fruits off the ground, and consistent watering is necessary to avoid blossom-end rot and cracking of the fruits. The plant requires relatively warm weather and much sunlight it is grown chiefly in hothouses in cooler climates. SpaceNext50 Britannica presents SpaceNext50, From the race to the Moon to space stewardship, we explore a wide range of subjects that feed our curiosity about space!.Learn about the major environmental problems facing our planet and what can be done about them! Saving Earth Britannica Presents Earth’s To-Do List for the 21st Century.100 Women Britannica celebrates the centennial of the Nineteenth Amendment, highlighting suffragists and history-making politicians.COVID-19 Portal While this global health crisis continues to evolve, it can be useful to look to past pandemics to better understand how to respond today.Student Portal Britannica is the ultimate student resource for key school subjects like history, government, literature, and more.This Time in History In these videos, find out what happened this month (or any month!) in history.#WTFact Videos In #WTFact Britannica shares some of the most bizarre facts we can find.
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