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Mango (Mangifera indica L) is an important tropical fruit and is commonly grown in many countries of the world including Pakistan. It ranks as the fifth largest fruit produce in the world and universally considered as one of the delicious and finest fruits and widely consumed throughout world. Mango owes its development to Indo-Pak subcontinent where more than 250 improved, superior and delicious varieties have been evolved and grown for the last several decades. Some of the most famous and popular varieties in Pakistan are Sindhri, Dusehri, Summer Behisht Chaunsa, Anwar Ratual, Langra, Malda, Gulab Khas, Bagenpali, Neelum, Sufaida and Fajri; apart from some indigenous or local varieties. All these varieties at the time of flushing and flowering are highly susceptible to anthracnose caused by Colletotrichum gloeosporioides (Penz) (Akhtar et al., 1998) and powdery mildew by Pseudoidium anacardii (F. Noack) U. Braun & R.T.A. Cook 2012 previously known as Oidium mangiferae Barthet (Akhtar et al., 1999; Gorter, 1988a; Gorter, 1988b). Both the diseases occur on foliage and blossom, but blossom infection is more serious (Prakash and Mishra, 1992; Darvas, 1992; Akhtar et al., 1998; Saleem, 1999) because it results in flower drop, poor fruit set and ultimately produces low fruit yields (Shridhar and Sohi, 1973; Fitzell, 1981; Prakash and Raoof, 1985; Tariq et al., 2008). It has been estimated that increase in the incidence of anthracnose from 31 to 40% and powdery mildew from 41 to 50% can cause 100% yield loss. Therefore, regular applications of suitable fungicides are required during the period of mango blossoming to effectively control anthracnose and powdery mildew (Ploetz, 1999). Many fungicides have been assessed against these diseases, but there has been tendency to concentrate on one disease at a time (Gafar et al., 1975; De Beer and Snyman, 1983; Prakash and Raoof, 1985; McKenzie, 1988). In practice, however, two or more diseases may occur in the same locality at the same time. It is therefore better to adopt a holistic approach. Present study deals with the identification of causal pathogens, description of symptoms at flowering and effectiveness of some fungicides against anthracnose and powdery mildew of mango.

EFFICACY OF SOME ORGANIC FUNGICIDES AGAINST ANTHRACNOSE AND POWDERY MILDEW OF MANGO