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Download Fungal Diseases in Mango
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Click to edit Master text Click to edit ◦ Second level Master text Fungal Diseases styles in Mango styles ◦ Second level Third level Fourth level Third level Fifth level Fourth level Fifth level Next Free Powerpoint Templates Previous End Major Diseases in Mango Click to edit Master text styles ◦ Second level Powdery mildew Third level Sooty mould Fourth level Anthracnose Fifth level Die back Next Stalk End rot Red rust Free Powerpoint Templates Previous End Powdery Mildew (Oidium Magiferae) Click to edit Master text styles ◦ Second level Powdery mildew is one of the most serious diseases of mango affecting Third almost all the varieties in level all mango growing areas. Fourth level Fifth level It causes approximately 20% crop loss in Maharashtra. Sometimes as high as 70-80 per cent crop loss has been recorded on individual plant basis. Next Free Powerpoint Templates Previous End Symptoms The characteristic Click to edit Master text symptom styles ◦ of the disease is the white superficial Second level powdery fungal growth on leaves, Third levelstalks of panicles, flowers and young fruits. Fourth level Fifth level The affected flowers and fruits drop prematurely reducing the crop load considerably or might even prevent the fruit set. Next Free Powerpoint Templates Previous End Favorable Conditions Click to edit Master text styles ◦ Second level Rains or mists accompanied by cooler nights during flowering are Third level congenial for the disease spread. Fourth level Fifth level The fungus parasitizes young tissues of all parts of the inflorescence, leaves and fruits. Next Free Powerpoint Templates Previous End Management practices Click to edit Master text Spray the following fungicides at 15 days interval for styles effective control of the disease:◦ Second level Third level Fourth level0.2 per cent Wet table sulphur Fifth level (2 g /1lit.water) Tridemorph 0.1 per cent (1 ml / lit. water ). Dinocap 0.1 per cent (1 ml / lit. water). Next Free Powerpoint Templates Previous End Sooty mould (Meliola mangiferae) Symptoms: Click to edit Master text styles ◦ Second level The severity of infection depends on the honey dew secretion Third level by the above said insects. Fourth level Fifth level Honey dew secretions from insects sticks to the leaf surface and provide medium for fungal growth. Next Free Powerpoint Templates Previous End Presence of a black velvety coating (sooty mould)on the leaf surface Click to edit Master text styles ◦ Second level Transmission by Insect vectors Third level Fourth level Fifth level Mealy bug Scale insect Hoppers Common in most of the orchards In severe cases the trees turn completely black due to the presence of mould over the entire surface of twigs and leaves. Next Free Powerpoint Templates Previous End Click to edit Master text styles Management practices ◦ Second level Third level Fourth level Pruning of affected branches and their prompt destruction prevents the Fifth level spread of the disease. Spraying of 2 per cent starch is found effective. It could also be controlled by spray of Nottasul + Metacin + gumacasea (0.2% + 0.1% + 0.3%). Next Free Powerpoint Templates Previous End Anthracnose Click to edit Master text styles The disease causes serious losses to young shoots, leaves stem, flowers ◦ Second level and fruits under favorable climatic conditions of high humidity, frequent rains Third level oC. and a temperature of 24-32level Fourth Fifth The disease produces leaflevel spot, blossom blight, wither tip, twig blight and fruit rot symptoms. Tender shoots and foliage are easily affected which ultimately cause ‘die back’ of young branches Next Free Powerpoint Templates Previous End Symptoms Flowers: Click to edit Master text styles ◦ Second level Third level(flower on the panicles Fourth level clusters) start as small black or dark Fifth level brown spots. Infections These can enlarge, coalesce and kill the flowers. Next Free Powerpoint Templates Previous End Fruits: Click to edit Master text styles ◦ Second level Third level Fourth levelto black Prominent dark-brown Fifth level decay spots or “tear stains”. Fruit infections are common and can create severe decay of fruits Next Free Powerpoint Templates Previous End Click to edit Master text styles Leaves: ◦ Second level Third level Infections Fourth leaf level as small, Fifth level angular, brown to black spots. Next Free Powerpoint Templates Previous End: Click to edit Master text styles ◦ Second level Stem: Third level Fourth level Dark-colored to Fifth blacklevel lesions can form on green stem tissues. Next Free Powerpoint Templates Previous End Management practices Click to edit Master text styles ◦ Second level Spray twice with Carbendazim (0.1%) at 15 days Third level interval during flowering to control blossom Fourth level infection. Fifth level Spray Copper fungicides (0.3%) for the control of foliar infection. Next Free Powerpoint Templates Previous End Die Back(Botryodiplodia theobromae ) Symptoms: Click to edit Master text styles ◦ Second level trunk of infested Disease occurs on the branches/ Third levelat first and branches trees that start drying slowly become completely Fourth dried / level killed, resulting gummy Fifth level substance oozes out or remains hanging on the tree . The disease is characterized by drying of twigs and branches followed by complete defoliation, which gives the tree an appearance of scorching by fire. Next Free Powerpoint Templates Previous End The young green twigs start withering first at the Click to edit Master text styles ◦ Second level base and then extending outwards along the Third level veins of leaf edges. Fourth level The affected leaf turns brown Fifth leveland its margins roll upwards. Leaves scorch and fall, leaving a dead branch. In severe conditions, branches start drying one after another in a sequence resulting in death of the whole tree. Next Free Powerpoint Templates Previous End Management Practices Click to edit Master text styles ◦ Second level Prune the diseased twigs and spray with Copper oxychloride (0.3%) on Third level infected trees. Fourth level Fifth level Pruning should be done in such a way that the twigs are removed 2-3 inches below the affected portion. In small plants, pruning of twigs is followed by pasting of Copper oxychloride Next Free Powerpoint Templates Previous End Red rust (Cephaleuros virescens) Click to edit Master text styles ◦ Second level Disease, caused by an alga, has been observed in mango growing Third level areas. Fourth level Fifth level The algal attack causes reduction in photosynthetic activity and defoliation of leaves thereby lowering vitality of the host plant. The disease is more common in closely planted orchards. Next Free Powerpoint Templates Previous End Symptoms Click toonedit Rusty redspots mainly leavesMaster text styles ◦ Second level and sometimes on petioles and Third level bark of young twigs and islevel Fourth epiphytic in nature Fifth level The spots are greenish grey in color and velvety in texture, later they turn reddish brown Next Free Powerpoint Templates Previous End Management Practices Click to edit Master text styles ◦ Second level Third level Two to three sprays of Copper oxychloride Fourth level Fifth level (0.3%) control the disease Next Free Powerpoint Templates Previous End To sum up Click to edit Master text styles • Fungal diseases are adversely affect the yield and quality of fruits.it ◦ Second level may be occur in leaves, twigs, stem and fruits. They are powdery mildew, sooty mould,level anthracnose, red rust, die back, stalk end rot. Third • Powdery mildew – white powdery growth on leaf surface, stalks of Fourth level panicles, flowers and young fruits - application wettable sulphur 0.2% Fifth level • Sooty mould – presence of a black velvety coating – spraying of 2% starch • Anthracnose – Prominent dark-brown to black decay spots on leaves, flowers, fruits and twigs - Sprayed twice with Bavistin (0.1%) at 15 days interval • Red rust – Rusty red spots on leaves - three sprays of Copper oxychloride (0.3%) • Die back – Affected plants, twigs die from the tips back into old wood Prune the diseased twigs and spray with Copper oxychloride (0.3%) Next Free Powerpoint Templates Previous
