This document discusses the anthracnose disease that affects mango plants. It is caused by the fungus Colletotrichum gloeosporioides. The disease causes lesions on leaves, stems, flowers and fruits of mango plants. It thrives under warm and humid conditions between 24-32°C. The fungus overwinters on infected plant debris. Spores are spread by rain splash and irrigation water. Management involves spraying carbendazim during flowering and copper or mancozeb fungicides on leaves at 15 day intervals to control the disease.

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 24-32oC.
 Frequent rains.

5. Epidemi
ology

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

15. 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