As they eat, they make holes in young to middle-aged leaves (Photos 3-6). Distribution Top of page S. bradys is a nematode of West Africa which has spread to other yam growing areas of the world in South America and the Caribbean. UBE Ubi (Dioscorea alata L.) or yam is a vine which produces both aerial tubers called bulbils and underground tubers or roots. Agricultural pest management control strategies are primarily concerned with food security and safety. For each pest and disease covered in this manual, methods are first given for prevention of the problem. Only 3% of them reported that they had used traditional methods of control such as … is the most important tuber crop in terms of coverage area in West Africa, particularly in Benin and Togo. The Cocoa Pod Borer, or is often named the CPB is one of the most common pests in cocoa cultivation. Apical meristem-tip culture for eradication of flexuous rod viruses in yams (Dioscorea alata). The genotypic composition of yam tubers affect their performance in storage structure, there was significant differences in the durability of yam tubers stored in either pit, barn, platform or heap [11]. Trop. The scientific name of this pest is Conophomorpa cramerella. yam and Amala in Nigeria), boiled, fried and roasted (Aidoo, 2009; IITA, 2009). Yam production is declining in some traditional producing areas due to declining soil fertility, increasing pest pressures and the high cost of labor. D. alata is a vigorous twining herbaceous vine, which is an important edible tuber crop but also an invasive plant outside cultivated areas. seed yams, usually starting with healthy ware yam tubers of medium size (~1 kg). Vernacular nomenclature and taxonomy of termites’ pest … 12 Revised 2002 Yam dieback, or anthracnose, is caused by the fungus Colletotrichum gloeosporioides. Created Date 1/17/2015 6:29:59 AM Then, if intervention is needed when a pest or disease occurs, the safest and most effective options available are listed. [6, 4]. 2. The pest reproduces during storage and covers the tuber. Ventral shields (‘flags’) from dead individuals are also abundant. Yam, cassava, potato and sweet potato are cheap but nutritionally rich staple foods that contribute protein, vitamin C, vitamin A, zinc, and iron towards the dietary demands of the region’s fast-growing towns and cities. In 2004, the total world production of yam was about 47 million metric tonnes (MT), with 96% of this coming from Africa. IITA’s Genetic Resources Center holds the largest yam international germplasm collection in trust, with 3,872 accessions, including nine of the major cultivated species. from El Salvador, Honduras and Nicaragua. The approach used in the manual is called Integrated Pest Management (IPM). pest species, based on several characteristics. Of the 600 known species of yams, only six are edible or food yams. In West Africa, Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) is a pest that attacks and spoils stored yam chips. Origin: Southeast Asia Botanical Description: Vigorously twining herbaceous vine, from massive underground tuber. It is found at nearly all territory of cocoa cultivation in Indonesia. Pest Management 26(2):170-179. Yams are members of the genus Dioscorea , which produce bulbils, tubers or rhizomes that are of economic importance. The goal has been to find ways in which seed yams can be produced cost effectively but also in ways that lower or even eliminate the chances of any pests and diseases finding their way from mother tuber to seed tubers. There are over 600 varieties of yams and 95 percent of these crops are grown in Africa. pest awareness among the yam farmers, most farmers (97%) still did not practice any type of pest control because they lacked the knowledge of appropriate control methods. The Yams have multiple species, around 600 species approximately. It is probably present in all the countries of the region and is often a major problem where yams (Dioscorea spp.) West Africa accounts for 90-95% of world production, Nigeria being the major producer. Aspidiella hartii (Cockerell) infests yam tubers marketed in Bari (South Italy). Yam (Dioscorea spp.) The survey covered 48 farms of 10 municipalities. Dioscorea rotundata and D. cayenensis (both known as Guinea yam) are the most popular and economically important yams in West and Central Africa where they are indigenous, while D. alata (referred to as Sweet potatoes and yams are also good sources of energy, which the body needs to stay active. 1980. However, water yam (D. alata) is thought to be more susceptible to an- This risk assessment examines the pest risks associated with the importation into the United States of the roots of yam-bean or jícama (Pachyrhizus spp.) resistance against pests and pathogens. the damage inflicted on yams by the yam tuber beetles Heteroligus spp. Nigeria accounts for about 70% of world production. with pest and disease resistance, and acceptable tuber quality. The Yam is the chief source of calories for the population in tropical and sub-tropical regions. Alarmingly, the annual yam production per hectare has recently decreased considerably due to a loss of soil fertility and pest and disease (especially nematode) damage. For those farmers, termite pest species do not have winged forms (97.82% of responses), they have big heads and big mandibles (1.08% of responses), and construct termite mounds (1.08% of responses). Disease and Pest Survey At the end of 1980 and throughout 1981 growing seasons, a disease and pest survey was conducted throughout the yam growing zone of Puerto Rico. These pests attack fruit and cause a yield decline in both quantity and quality. This root and tuber place in the diet of smallholder farmers cannot be I: Annual Yam production in the world, Ghana, Côte d Ivoire, Nigeria, (1961–2012) Yams Elements Areas 1961 1980 1985 1990 1995 2000 2010 2012 opular pest control methods include P of synthetic application pesticides, biopesticides (plant extracts), non-chemical pest management and integrated pest management (IPM). 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