anthracnose of mango

Muhammad Kaleem Abid

1. Mian Muhammad Kaleem Abid Topic: Anthracnose Roll NO: BAGF15E265

2. Content… Name+Intro Epidemiology Symptoms Disease Casual Disease Cycle Management

3. Name +Intro Anthracnose ( Colletotrichum gloeosporioides ) The disease causes serious losses to young shoots, leaves stem, flowers and fruits.

4. Epidemiology Under favorable climatic conditions. High humidity required. Temperature of 24-32 oC . Frequent rains.

5. High humidity required Frequent Rains. Temperature of 24-32 oC . Epidemiology

6. Symptoms The disease produces leaf 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

7. Symptoms Flowers: Infections on the panicles (flower clusters) start as small black or dark-brown spots. These can enlarge, coalesce and kill the flowers.

8. Symptoms Fruits: Prominent dark-brown to black decay spots or “tear stains”. Fruit infections are common and can create severe decay of fruits

9. Symptoms Leaves: Infections leaf as small, angular, brown to black spots.

10. Leaves symptoms video

11. Symptoms Stem: Dark-colored to black lesions can form on green stem tissues .

12. Disease cycle Dissemination : spores (conidia) of the pathogen are dispersed passively by splashing rain or irrigation water. Inoculation: spores land on infection sites (panicles, leaves, branch terminals). Symptom and disease development: black, sunken, rapidly expanding lesions develop on affected organs Pathogen reproduction: sticky masses of conidia are produced in fruiting bodies ( acervuli ). Pathogen survival: the pathogen survives between seasons on infected and defoliated branch terminals and mature leaves

13. Disease Cycle

14. Management Practice Spray twice with Carbendazim (0.1%) at 15 days interval during flowering to control blossom infection. Spray Copper fungicides (0.3%) for the control of foliar infection. spraying of Mancozeb 2g/lit Thiophanate methyl 1g/lit or Chlorothalonil 2 g/lit, 3 times at 15 days interval