author(s)
Kavyashree BA, Thippaiah M and Murali Mohan

abstract
An inquiry on screening of ridge gourd genotypes against leaf miner, Liriomyza trifolii (Burgess) and fruit fly, Zeugodacus cucurbitae was undertaken by analyzing the leaf miner and fruit fly infestations. correlation analysis showed that the total sugars, reducing sugar and non reducing sugar exhibited a significant positive correlation. where as, phenols and tannins showed a significant negative correlation. This suggested that both miners and fruit flies would prefer plants with more sugars. Genotypes, NS-3 and ERG-4 registered the highest total sugars (2.13% and0.89%) and reducing sugars respectively. Similarly, overall phenol content (60.49mg 100 g^-1) was highest in surekha and tannin content (24.63mg 100 g^-1) was highest in amoha genotype. The genotypes with large concentrations of phenols, tannins and less amount of sugars were found to be major biochemical features showing reduced leaf miner and fruit fly infestation. These traits have proven to be significant requirements for breeding of potential genotypes.