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On Valentine’s Day Don’t Take Someone’s Love, Or That Box Of Chocolates, For Granted

Date:
February 14, 2001
Source:
American Phytopathological Society
Summary:
Making sure there’s enough chocolate in the world may seem like a sweet-heart-of-a job. But it’s actually becoming quite a challenge. Five major diseases now threaten the world’s population of cacao trees, from which chocolate is derived. But scientists working on the problem are optimistic that their efforts to control these diseases and create sustainable growing practices will work.

St. Paul, MN (February 5, 2001) -- Making sure there’s enough chocolate in the world may seem like a sweet-heart-of-a job. But it’s actually becoming quite a challenge. Five major diseases now threaten the world’s population of cacao trees, from which chocolate is derived. But scientists working on the problem are optimistic that their efforts to control these diseases and create sustainable growing practices will work.

Once a substantial business, cocoa bean production in Brazil is now only one-fourth of what it was ten years ago. In most part due to the invasion of a single fungus, Crinipellis perniciosa. In West and Central Africa where much of the world’s cocoa beans are grown, losses due to another disease, black pod, range from 30 to 90% annually. Add to that the fact that black pod, like many of these diseases, has features that make it difficult to control, and you begin to understand why plant pathologists feel particularly challenged.

States John Bowers, a plant pathologist with USDA ARS in Beltsville, MD, “A complicating factor in fighting these diseases is that many of the treatments that work in other situations don’t work with the cacao tree. Producing cocoa beans is very labor and equipment intensive so many of the disease management options we would normally use are either cost-prohibitive or too time-consuming to develop.”

Since long-term solutions, such as breeding for disease resistance, or biotechnological approaches are not yet readily available, scientists have been employing the tools they do have. They're working with an international group of collaborators and growers to help them develop practices that discourage the development of disease and help prevent its spread if it does occur. Their overall objective is to work towards a sustainable cacao management system that fits within the diverse rain forest ecosystem. The strategies being investigated include biological control, induced disease resistance, crop sanitation, cultural practices, and limited use of pesticides. The challenge is to integrate all these components into a management strategy that inhibits disease development, and at the same time preserves and protects these valuable tropical ecosystems.

Right now scientists hope to keep these diseases in check while they work on developing more long-range controls. “No doubt it will be a combination of practices and new discoveries that will ultimately help us retain the health of the world’s cacao trees,” says Bowers. “We just need more time.”

Diseases impacting world chocolate production is the subject of this month’s feature story on the APS website. Visit it at http://www.apsnet.org for more information. The American Phytopathological Society (APS) is a non-profit, professional scientific organization dedicated to the study and control of plant diseases, with 5,000 members worldwide.


Story Source:

The above story is based on materials provided by American Phytopathological Society. Note: Materials may be edited for content and length.


Cite This Page:

American Phytopathological Society. "On Valentine’s Day Don’t Take Someone’s Love, Or That Box Of Chocolates, For Granted." ScienceDaily. ScienceDaily, 14 February 2001. <www.sciencedaily.com/releases/2001/02/010206080700.htm>.
American Phytopathological Society. (2001, February 14). On Valentine’s Day Don’t Take Someone’s Love, Or That Box Of Chocolates, For Granted. ScienceDaily. Retrieved September 2, 2014 from www.sciencedaily.com/releases/2001/02/010206080700.htm
American Phytopathological Society. "On Valentine’s Day Don’t Take Someone’s Love, Or That Box Of Chocolates, For Granted." ScienceDaily. www.sciencedaily.com/releases/2001/02/010206080700.htm (accessed September 2, 2014).

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