Fruit Canker: Glomerella psidii & Pestalotia psidii Symptoms:
- Minute, brown or rust-coloured unbroken, circular, necrotic areas appear on the fruit which later tear the epidermis open in a circinate manner.
- The margin of the affected area becomes raised.
![](images/post_harvest_dis/guava/canker_2.jpg) |
![](images/post_harvest_dis/guava/canker_1.jpg) |
![](images/post_harvest_dis/guava/canker.jpg) |
Brown color necrosis |
Necrosis on epidermis |
Fruit canker |
Management:
- 1% Bordeaux mixture or lime-sulphur (1in 25) – 3 or 4 sprayings.
- PH wash with aureofungin (200ppm) can protect fruits for 5 days.
- The fruit rot can be checked by dip treatment of the fruits with aretan.
Image source:
http://farmer.gov.in/imagedefault/ipm/IPM%20pakcage%20for%20Guava.pdf |