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Most rubber is derived from hevea, a product of the para rubber tree. Para rubber trees, native to Brazil, were transplanted to Southeast Asia where they have been carefully bred to increase hevea production. Today, most rubber comes from this region of the world, with the balance synthetically produced from petroleum. While it's true that most rubber is inherently organic, it's not necessarily "green"-at least not as green as guayule. Beginning with proximity, the benefits of using rubber derived from environmentally-friendly plant guayule are simple to see. Whereas hevea must be grown overseas in tropical climates, the other natural source of latex rubber, guayule, can be grown in the southwestern United States and northern Mexico. The cost to the environment is lower than importing hevea-based rubber from overseas because of reduced fuel usage, since guayule is grown so close to home. Second, guayule's location presents a green benefit. Guayule is a tremendously hearty plant, unlike hevea rubber produced from the common para rubber tree grown in tropical areas. Because it's naturally resistant, it does not require any chemical pesticides to keep its health. Para rubber trees are tremendously susceptible to leaf blight, so chemical pesticides are required to remain healthy. Chemical pesticides have been associated with various environmental and health risks, so guayule's natural pest resistance is significant. Guayule's third green attribute is that it can be used as an ethanol feedstock. Guayule is not a food source, unlike corn, which is commonly used to make ethanol, and therefore doesn't impact the world's food source in price or availability. The demand for corn produced ethanol, in some situations, has impacted the food supply in the market. But that isn't an issue since guayule is not a food source. Finally, guayule is an excellent source of hypoallergenic natural rubber latex. Hevea latex allergies are a serious issue-it's estimated that 10 percent of the U.S. population has a latex allergy. Currently, most hypoallergenic latex is derived from petroleum-based synthetic rubber. Obviously, a natural source of hypoallergenic rubber is fundamentally superior to rubber synthesized from petroleum. Because of import restrictions, leaf blight decimation, and common latex allergies among health care providers guayule gained popularity throughout the 20th century. Although more rubber can be produced from a single para rubber tree than a guayule plant, the overall greenness, locale, energy-producing potential and hypoallergenic qualities of the guayule plant is unbeatable. Now the question is how do green-conscious consumers support this product? Local farmers in the southwestern U.S. and northern Mexico, along with the Yulex Corporation, are working to produce the crop and manufacture latex products from it. Finding ways to support these entities is a sure way to invest in the success of the environment and the affordability of guayule produced rubber products. Article Source: http://www.articlewheel.com
Author Jason Lancaster is an avid fan of up-and-coming agricultural biotechnology. You can learn more about guayule at GuayuleBlog.com.
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