Studies on the relative occurrence of leaf‐gall midge(Procontarinia matteianaKieffer and Cecconi) on different varieties of mango in south Gujarat, India

Abstract

Abstract Studies on the relative occurrence of the leaf‐gall midge (Procontarinia matteiana Kieffer and Cecconi) on different varieties of mango cultivated in south Gujarat were carried out in 1984 and 1985. A locational survey was made at 17 different places in various talukas of District Valsad, to determine the relative infestation of leaf‐gall midge on Alphonso, Kesar and Raja‐puri, the most commonly cultivated mango varieties in south Gujarat; the survey indicated that the order of these three varieties, based on the average percentage of leaves damaged by the pest, was Alphonso (47.70%), Kesar (27.21%) and Rajapuri (25.80%), with an average of 20.12,17.64 and 12.46 galls per leaf, respectively. Studies were also carried out to investigate varietal susceptibility to gall midge in 24 varieties cultivated at the Fruit’ Research Station, Gujarat Agricultural University, Paria. The pest was observed to be parasitized by Chrysonotomyia pulcherrima (Kerrich); Synopeas mangiferae Austin and Inostemma oculare Austin.