Although the use of wilt-resistant cultivars can provide greater degree of disease resistance, the emergence of new races of the pathogen that overcome resistance is a continuing problem. The seedling wilt phase occurs when young plants are infected systemically (Figure 2).The leaf blight phase occurs when plants are infected after the seedling stage (Figure 3).Infection occurs in plant tissues that are wounded during feeding by an insect (Figure 4), the corn flea beetle (Chaetocnema pulicaria) (Figure 5). Pine wilt disease (PWD) constitutes a serious threat to pine forests. The best way to develop the disease is to incorporate stubble from diseased plants into the soil and to grow wilt-susceptible cultivars in intermittent rows all over the field (Reddy et al., 1998). There is a fungus, Fusarium oxysporum, which lives in the soil and in most cases feeds on dead organic matter (saprophyte).However, it has particular strains or special forms which cause disease in plants and are highly specialised. Fusarium wilt disease can also cause up to 100 percent of yield loss in a field. DISEASE CYCLE The two wilt fungi may survive on seed for 2 years or longer, live from season to season in old infected vines, and are able to remain alive indefinitely in wilt-infested soil. The fungus grows in the soil and invades bananas through the fine (hair) roots. The disease, Verticillium wilt, is problematic in temperate areas of the world, especially in irrigated regions. Generally appear localised areas of the field where a high percentage of the plants wilt and die, although scattered wilted plants may also occur. The bacteria enter the plant through wounds made in the roots during transplanting, through agricultural equipment’s, nematodes and insects. This is followed by leaf and stem wilting. Fusarium oxysporum f. sp. (PWB) and potato purple top wilt (PPT), which occur in North America and Mexico (Banttari et al., 1990; Khadhair etal.,1997;Leeetal.,2000,2004a;Leyva-Lo´pezetal.,2002). Soggy soil or mud is the perfect place for a fusarium outbreak to strike, as a splash can send it up onto the leaves. Fusarium wilt disease then progresses to faded, yellowed foliage and stunted growth. Fusarium wilt disease is a fungal organism which spreads to plants by entering younger more vulnerable roots. Plants often grow normally until they begin to bloom and set fruit. Wilt - Fusarium udum Symptoms The disease may appear from early stages of plant growth (4-6 week old plant) up to flowering and podding. Therefore the disease symptoms and the causal bacterium were studied. Bacterial wilt is a soil and seed borne disease that occurs during south west monsoon. Bacterial wilt can cause the plants to wilt and then die fast. Two phases of Stewart's wilt occur on corn. •Signs of plant disease are physical evidence of the pathogen, for example, fungal fruiting bodies, bacterial ooze, or nematode cysts. The MB index, which represents the sum of the difference between the mean monthly … 38 are fairly resistant to the disease. Foliar yellowing, defoliation and die-back are the aerial symptoms of this disease. Fusarium wilt, also known as Panama disease, is the most serious disease affecting bananas. This is especially apparent in … cubense (Foc). ciceri (Padwick) Synd. Wilt disease develops rapidly in overly-wet environments. Many soil inhabiting fungi infect Both race 1 and race 3 can cause Southern wilt of geranium with similar disease symptoms. Bacterial wilt of groundnut caused by Pseudomonas solanacearum E.F. Sm. Signs also can help with plant disease identification. Fusarium Wilt (Panama disease) in Central America. The first symptoms appear when fruit begins to mature. 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