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Diseases of Mango


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A report about Diseases of Mango

Published in: Food
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Diseases of Mango

  1. 1. Anthracnose- the latent invisible infection is preset in the green fruit in a dormant state, and becomes active during the ripening process. Note that fruit symptoms may not become evident until the fruit arrives at the market. Dark brown to black spreading lesions can occur anywhere on the fruit, but two forms have specific names: tear stain ad stem end anthracnose. The tear-stain lesions are the result of fungal spores carried down the fruit surface in dew or rain droplets.
  2. 2.  Powdery Mildew- The disease affects inflorescence, leaves and young fruits. The characteristics symptom of the disease is the white superficial powdery growth of the fungus comprising a large number of conidia borne on conidiophores. The disease can be managed by pruning of diseased leaves and malformed panicles.
  3. 3. Dieback- The disease is characterized by dying back of twigs from top downwards particularly in order trees followed by dying of leaves. Dark patches are seen on young green twigs. Cracks are seen on branches and gum exudes from the cracks before its death.
  4. 4. Phoma Blight- Disease initially starts as minute, irregular, yellow to light brown scattered spots on all over the leaf lamina. Characteristic feature of fully developed spots are dark brown margin and dull necrotic grey centers. In severe cases spot coalesce and form big patches resulting in withering and defoliation of infected leaves.
  5. 5. Scab- the casual pathogen of disease is Elsino mangiferae. It affects leaves, panicles, blossoms, twigs, stem bark ad fruits. The symptom produced by the pathogen is almost similar to anthracnose but lesions produced are smaller than anthracnose on leaves and down surface is covered by delicate velvety growth.
  6. 6. Black Banded- Disease symptom appear in the form of black velvety fungal growth on midribs, twigs, and branches of mango tree. The infected portion of bark contains mycelial growth and cluster of conidiophores which confined to upper layer only.
  7. 7. Mango Malformation- vegetative malformation is more pronounced on young mango seedlings and plants. The affected plants developed swollen abnormal vegetative growth with short internodes. The characteristic symptoms of the floral malformation are compact and clustery appearance of flower.
  8. 8. Mango Bacterial Canker Disease (MBCD)- Lesions on leaves are angular to irregular, dark brown to black, cankerous on lower side but occasionally on both sides and surrounded by chlorotic halo. Fruits may drop off, if infection comes at stem end. MBCD can be minimized by regular inspection of orchards and its sanitation, use bio-control agents for pest.
  9. 9. Red-Rust- The disease is caused by algae, and manipest itself in the form of rusty red fructification of the alga on the surface of leaves, petioles and twigs. Initially the spots are greenish grey and velvety in texture which finally turn to reddish brown, after shedding the spore the algal matrix remains attached to leaf surface, leaving a creamy white mark at the original rust spot.
  10. 10.  Black Rot- It is a post-harvest disease caused by Aspergillus niger van tiegh. Affected fruits show yellowing with irregular grayish spots, which develops into black necrotic area with growth of black mould. Tissues around and beneath the spots disintegrates and emits foul odor. The disease can be managed by avoidance of injury to fruits and its contact to soil, dipping of fruits in hot water and covering of fruits with brown or newspaper on the tree itself 15 days prior to harvest.
  12. 12. Green Beetle ( Anomala sp.)
  13. 13. Mango cecid fly ( Procantarinia sp.)
  14. 14. Mango pulp weevil (Sternochetus frigidus)
  15. 15. Mango Thrips (Scitothrips dorsalis)
  16. 16. Mealy Bugs (Ferrisia virgata)
  17. 17. Red-ringed Caterpillar (Noorda albizonalis)
  18. 18. Tent Caterpillar (Orthaga melanoperalis)
  21. 21. Lady Beetle (Coccinella septempunctata)
  22. 22. Lacewings (Chrysoperla carnea)
  23. 23. Syrphid Flies (Syritta pipiens)
  24. 24. Damaging corn pest
  25. 25. Cut Worm (Agrotis spp.)
  26. 26. Wire Worm (Conoderus rudis)
  27. 27. Root Worm ( Larvae) (Diabrotica virgifera virgefera)
  28. 28. Corn Borer (Ostrinia furnacalis)
  29. 29. Ear Worm
  30. 30. Army Worm (Spodoptera litura fabricius)
  31. 31. Japanese Beetle (Popillia japanical)
  32. 32. Aphids
  33. 33. Mites
  34. 34. END