ABSTRACT

The infection spreads by wind-borne spores develop on dead leaves, twigs, and mummified fruits in the orchard. Dense canopy is congenial for the germination of spores due to high moisture conditions. Movement of planting material through infected foliage and transportation of fruits from high disease-prone areas also spread the pathogens. Guava is the fourth most widely grown fruit crop in India. Uttar Pradesh is the leading state in guava production, followed by Andhra Pradesh and Bihar. One of the major constraints in guava production is diseases. Control of guava rust is based on the use of fungicides. Scouting fields for the onset of disease or during the times of the year when environmental conditions are favorable for pathogen infection are recommended so that proper and timely fungicide applications can control the diseases.