Abstract
The biometrics of the larva of Earias vitella on cotton in terms of head capsule width, body length and body width were studied. The range of head capsule width for I-IV instars was greater on Parbhani Turab (0.29 ± 0.01 to 1.56 ± 0.01mm) > NHH-44 (0.29 ± 0.01 to 1.53 ± 0.02 mm) and Paras Brahma (0.29 ± 0.01 to 1.46 ± 0.02 mm). Body length range of I-IV instars was greater on Parbhani Turab (1.13 ± 0.01 to 12.18 ± 0.02) > NHH-44 (1.11 ± 0.02 to 12.08 ± 0.04) and Paras Brahma 1.08 ± 0.01 to 11.97 ± 0.03 mm. Body width range of I-IV instars was greater on Parbhani Turab (0.28 ± 0.01 to 3.09 ± 0.03) > NHH-44 (0.28 ± 0.01 to 3.07 ± 0.02) and Paras Brahma (0.27 ± 0.01 to 3.01 ± to 0.02mm), respectively. Hence, Parbhani Turab was found more suitable for the development of the Earias vitella and the Paras Brahma cultivar less suitable.
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