Department of Plant Pathology, Punjab Agricultural University, Ludhiana
Online published on 14 March, 2012.
Anthracnose of guava caused by Colletotrichum gloeosporioides developed more rapidly on unripe and ripe fruits at a temperature of 30°C. The disease development was slow and less at 15° and 35°C. The size of the lesions increased markedly with increase in temperature and maximum at 30°C. Highest sporulation occurred at 25°C followed by 30°C. Likewise, size of lesions and sporulation also increased with increase in relative humidity levels and it was the maximum at 90 per cent relative humidity.
Anthracnose, Colletotrichum gloeosporioides, Disease development, Guava, Relative humidity, Temperature
