Invasive Species Compendium

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Abstract

Assessment of yield losses caused by Antigastra catalaunalis (Dup.) in different genotypes of sesame under agroclimatic conditions of Haryana.

Abstract

Yield losses in 40 genotypes of sesame caused by A. catalaunalis in the absence or presence of insecticide application (spraying of 0.15% carbaryl at 25, 40 and 55 days after sowing) were evaluated in Haryana, India. The avoidable yield losses reached 15.62 and 17.29% in RAUSS-17-4 and B-67, respectively, compared with 66.83% in CST-785. Generally, yield losses in the other genotypes were high, ranging from 20.34 (CST-782) to 64.65% (L-38). Yield losses in the released cultivars Pb. Til No. 1 and HT-1 were also slightly high (34.00 and 57.38%, respectively). The avoidable yield losses in RAUSS-17-4 (15.6%) and B-67 (17.3%) were low, suggesting that these genotypes appeared to be resistant to this pest. However, the yield potential of these genotypes under protected conditions was very low (419 kg/ha for B-67 and 302 kg/ha for RAUSS-17-4); thus, these genotypes could not be recommended for general cultivation. The yield potential of HT-6, TC-151, CST-781, RCR-1, HT-1, CST-785 and TC-167 was 1384, 1085, 1272, 1355, 1246, 1369 and 1218 kg/ha, respectively.