Introduction
The coffee bean is one of the world’s most widely utilized commodities touching almost every continent. In the book Coffee Rust: Epidemiology, resistance, and management Ajjamada Kushalappa asserts, “After petroleum coffee is the most important product in international world trade” (Kushalappa, Eskes 1989) Given this fact, it can be safe to assume the growing of this crop plays a large role in many countries economic stability. Coffee rust is a disease of the Coffee tree which has proven it has the ability to decimate a farmer’s crop in a short period of time. Coffee rust is caused by the fungus Hemileia vastatrix. This disease has been established as one of the most catastrophic plant diseases of human history, along with others such as blight of potato and black stem rust of wheat. (Kushalappa, Eskes 1989)
The Coffee Rust disease is often considered a classic plant disease because it has been studied for such a long time, “Probably the first report of rust was that of a British Explorer in 1861, in the region of Lake Victoria of Kenya in east Africa” (Kushalappa, Eskes 1989). At this time knowledge of the fungi’s biology was extremely limited so really effective control measures could not be established. Because the coffee bean became such a widely distributed product and its popularity caught on quickly, it is easy to imagine how quickly the disease spread through trade. Small outbreaks of the disease occurred throughout the late 1800s, but by 1986 widespread presence of the disease was being reported” (Kushalappa, Eskes 1989). A great majority of the worldwide coffee production is located in Brazil, and Kushalappa states that the Coffee Rust Fungi was reported as present in 1970. (1989). Through human interv...
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Coffee lab environment: The theme of the coffee bar is more like an island, which allows customers to walk around and interact directly and indirectly with baristas. The interactive which also allows customers to express their thoughts, needs, and expressions about the coffee lab. This can bring up to an improvement of the overall coffee lab. It creates inviting environment for its
In the 1880's a harmful fungus known as blight, inhabited the United States from imported Japanese chestnut trees. Blight quickly spread, killing chestnuts and chinquapins, which is another species of chestnut that produces 1 nut per bur. In 1904, Chestnut blight appeared infecting trees in New York City and spread at a rate of 20-50 miles per year. By 1906, W.A. Murrill reported that this disease is known to occur in New Jersey, Maryland, District of Columbia, and Virginia. In 1912, the Planet Quarantine Act was passed to reduce the chances of plant deterioration or devastation prevention. Chestnut Blight or Chestnut Bark Disease was originally found in 1904 and within 50 years, it spread across the eastern United States, from Maine to Georgia and as far west as the edge of Michigan. By 1950, the American chestnut was essentially eliminated as a forest tree. In 1972, importation from Italy gave a biological control in which a virus helped prevent the blight f...
Sclerotinia stem rot (SSR) is caused by fungus named sclerotinia sclerotiorum (Lib.) de Bary. It is a common disease in oilseed rape (Brassica napus) field. In Sweden, S. sclerotiorum can cause 60% yield reduction in infected fields (Nordin, 1992). SSR is a major disease of canola in North Dakota. The incidence ranged from 7-19% in North Dakota from 1991 to 1993. ( Lamey, 1995). It occurs almost every year and in most regions of the state. Symptoms on canola appear when flowering appear two to three weeks after infection. Mushy is the first visible symptom. Petals are the first part to be infected, then infection can spread to leaf petioles and finally to stems. Light brown discoloured patches will show on stems, branches and pods. These lesions will expand and the plant surface becomes greyish-white color. When main stem is infected, the canola plant will be easy to lodging. Hard, black structures called sclerotia (survival structure of the pathogen) will be produced on infected tissues after the infection is well-established. It can be found inside of infected stem.
Old World crops such as wheat, barley, rice, and turnips had not traveled west across the Atlantic. Some of the New World crops that hav...
The cigarette beetle is one of the most common household insect that causes damage to stored products such as dried materials of animal and vegetable origin, nuts, herbs, spices, grains and grain products etc. They usually feed heavily at the larval stage (Cabrera, 2007). The insects are also found to develop favourably on root and tuber crops such as cassava, yam, cocoyam and sweet potato mostly in the dried or processed state for storage (Adebayor, 2002). The insect usually infest and contaminates stored products with their cocoons and body parts when they die, thereby reducing the qualitative and quantitative value of the stored product which makes it undesirable for human consumption (Buss and Fasulo, 2006). The rate of development of the cigarette beetle is dependent on the food source and environmental factors such as temperature and relative humidity (Rees, 2004). The longest developmental stage is usually recorded at the larval stage where most feeding is done; the longevity of the adult insect is usually dependent on the type and quantity of food consumed during the larval stage (Papadopoulou, 2006; Mahroof and Phillips, 2008).
A pathogen can be anything that causes a disease, including bacterium which causes meningitis, Viruses causing hepatitis A-C, and a fungus that cause athlete's foot. Plant pathology bacteria can serve economically damaging diseases, from spots, pustules on leaves and fruit, tuber rots to a plant's death. Some bacteria causes a hormone base distortion of leaves and shoots called fasciation. Fungi pathogens spread through plants to steal nutrients of living plants and carry out the part of the life cycle in soil. Mycorrhizae fungi make carbohydrates from plant roots, enhancing plant uptake of inorganic nutrients such as phosphorus and nitrogen. Cripps, C.L reported on mycorrhizae that “ The relationship is considered nonpathogenic, and of benefit to the plants involved.”- describing that the relationship between mycorrhizae and pathogens is nonpathogenic because mycorrhizae cancels out the disease. Over 85% of plants in nature have the mycorrhizae condition to keep pathogens away. This is why gardeners buy mycorrhizae fungi to help stop diseases of plants and for the safety of humans catching the disease through eating the plants. Food is one of the most important factors in the ecology life cycle and mycorrhizae makes it safe for these plants to take part in the
In a recent study, Nicholas P. Spanos and Jack Gottlieb were able to study biological occurrences that could account for the mysterious behavior of the young girls. The two studied ergot, which is a fungus that can infest rye and other cereal grains under specific conditions. The two discovered that when ingested, the ergotized grain may produce a remarkable amount of symptoms including, but not limited
Fungi are eukaryotic organisms which are either single-celled or multi-cellular organisms, their DNA containing chromosomes are enclosed in a Nucleus inside their cells. Fungi cell structure is very similar to that of the plants however, Fungi do not perform photosynthesis. Fungi is often known to be a nuisance when found within a person’s house, whether on food, the walls or even the floor. People naturally find it disturbing and dirty, however there are good types of Fungi, often referred to as friendly fungi. In 1928 Penicillin, one of the most famous of antibiotic drugs was discovered having derived it from the fungi called Penicillium. This discovery has since has a huge impact on helping people across the globe. However, not all is it seems, there are some nasty fungi that can cause diseases in plants, animals and people. A famous one being Phytophthora infestans. This ...
Schumann, Gail L., and Cleora J. D'Arcy. Hungry Planet: Stories of Plant Diseases. St. Paul: American Phytopathological Society, 2012. Print.
The potato famine of 1846 was one of the biggest natural disasters in Irish history. The “explosive disease” said William Fry, Ph.D., caused by Phytophtera infestans, is a condition that prevents growth and destroys the plant by disease. P. infestans is a fungus-like pathogen that infects and destroys the leaves, stems, potato seed and the potato itself, turning it black and slimy (Craig, 1998). The first signs of blight are when leaves get brown specks on them that start to get white, hairy growth around them (Damsker, n.d.). In addition, leaves and stems withered very quickly. This if followed by a terrible smell. It spreads as a spore and grows rapidly in moist, warm and humid conditions. Today, the blight disease still affects potato crops. However, an application of the plant fungicide, metalaxyl, or copper sulfate mixtures and pesticide will prevent and eliminate or, at least, decrease the possibility of its appearance (Daly, 1996). In fact, according to Gibbon’s article in 2013, the pathogen and its host of dried leaves ar...
Brazil nuts are harvested at plantations and in the wild. Plantations are being developed in various parts of the Amazon. Fazenda Aruana is the owner of a 12,000 hectare former cattle ranch, partially converted to a Brazil Nut plantation in 1980. By January of 1990, 318,660 Brazil nut trees were planted on 3341 hectares of land. Fazenda's original intent was to plant Brazil Nut trees in a 20 by 20 meter grids and allow cattle grazing between the trees. The trees in the Aruana plantation are the result of grafting high yield clones from the region of Abufari Amazonas were Brazil nuts are know for their large fruits and seeds. As a result of fertilization from the same clones, the fruit production among clones has been low(2). Another danger in using so few clones is the ability to resist attack of disease and insects.
Starbucks is a company in which purchases and roasts high quality whole bean coffees and sells them along with fresh, rich-brewed, Italian style espresso beverages, a variety of pastries and confections, and coffee-related accessories and equipment (starbucks.com). During my environmental scan in which took place at the Starbucks on the corner of Fair and Newport across the street from vanguard, I noticed many things in which where never brought to my attention in prior stays and visits at Starbucks; such as the many social groups in which choose to have their meetings at Starbucks. Thus in this essay we will discuss things in which many people do not really notice when going to Starbucks.
2. Cook, A. A. 1975. Diseases of Tropical and Subtropical Fruits and Nuts, Hafner Press,
Cocoa production is predicted of getting shortage of supply in 2020 (Nelson, 2017). The famous chocolate drink that Malaysian drink daily, Milo contains cocoa. Other than Milo, Koko Krunch, Nestle Crunch Wafer, KitKat are also mainly made from cocoa. Nestle as a company which largely depends on cocoa bean for its products, will become one of the victim of this cocoa supply risk. The biggest cocoa producer in the world, Ivory Coast, is facing the problem of diseases infected in cocoa plant, frequent rain, and buyers forcing producers to sell cocoa at very low price (The Guardian, 2014). In Malaysia and Indonesia, cocoa plantations are threatened by a tiny moth named as cocoa pod borer which eat the seed (Nelson, 2017).. These pests has cost cocoa
K.C. WILLSON p 4 ). Studies indicate that thanks to the country’s favorable ecological factors such as suitable altitude, optimum temperatures, appropriate planting materials, and fertile soil.). (Alemayehu p 6) , coffee grows in Ethiopia in several places at various altitudes ranging from 550-2750metrs above sea level. More than any other country, Ethiopia has abroad genetic diversity among its coffee verities. It is the center of origin and source of genetic diversity of the Arabica coffee plant to the world. Nine different coffee species are cultivated in the four region of Ethiopia, all with distinctive tastes, size, shapes and colors.