Field screening of castor germplasm against pests infesting castor

Abstract

The field experiment was conducted during kharif season, 2013 at ARS Pavagada to screen the promising germplasm entries of castor for confirmation of reaction to different insect pests’ viz. defoliators, sucking pests and capsule borer. Total sixteen entries of castor were collected from ZARS, GKVK, Bangalore and ZARS, Hiriyur and the results revealed, among sixteen entries, RG-3336, RG-3294, DPC-9, HCGP-2, RG-3388, DCH-519, HCGP-1, DCS-9, M-574, 48-1 and DCS-107 were found to be tolerant (with < 10% damage) and the entries HCGP-3, RG-3405, GCH-4, DCS-107, RG-3336, RG-3315, DPC-9, RG-3388, DCH-519, JC-12, RG-3294, DCS-9 & GCH-4 proved moderately tolerant (with 20-30% damage) against leaf miner, Liriomyza trifolii, Capsule borer, Conogethes punctiferalis, semilooper, Achaea janata and tobacco caterpillar, Spodoptera litura infestation.