Efficacy of newer insecticides against Spodoptera litura in sunflower (Helianthus annuus L.)
Efficacy of newer insecticides against Spodoptera litura in sunflower (Helianthus annuus L.)
102 / 2
Authors
-
S S LAKSHMAN
Ramkrishna Ashram Krishi Vigyan Kendra, Nimpith-743 338, South 24 Parganas, West Bengal
-
M K GODKE
Ramkrishna Ashram Krishi Vigyan Kendra, Nimpith-743 338, South 24 Parganas, West Bengal
-
H BASAPPA
Ramkrishna Ashram Krishi Vigyan Kendra, Nimpith-743 338, South 24 Parganas, West Bengal
Keywords:
Field efficacy, Newer insecticides, Spodoptera litura, SunflowerAbstract
Field experiment was conducted during rabi-summer season of 2014-15 and 2015-16 to evaluate the efficacy of certain newer chemical insecticides (flubendiamide 480SC, spinosad 48SC, thiodicarb 75WP, thiodicarb 80DF, novaluron 10EC) with conventional insecticides (dichlorvos 76EC and chlorpyriphos 20EC) against tobacco caterpillar, Spodoptera litura in sunflower. Results revealed that the maximum percentage of larval reduction and defoliation was in flubendiamide 480SC @ 150ml/ha followed by spinosad 48SC @ 150ml/ha. Highest seed yield were recorded in flubendiamide (1950 and 1825 kg/ha) followed by spinosad (1875 and 1740 kg/ha) and thiodicarb 75WP (1785 and 1700 kg/ha) as against 1500 and 1400 kg/ha in untreated control during 2014-15 and 2015-16, respectively. The maximum cost-benefit ratio of 1:2.1 and 1:2.05 was obtained with flubendiamide during 2014-15 and 2015-16, respectively.
Downloads
References
Ameta O P and Kumar A 2008. Efficacy of flubendiamide 480SC against Helicoverpa armigera (Hubner) and Spodoptera litura (Fab.) in chilli. Pestology, 32(5): 26-29.
Khambete M S, Kulkarni H, Chouhan H V S and Bishoni R C 1999. Bio-efficacyofrimon 10EC against diamond blackmoth, Plutella xylostella affecting cabbage. Pestology, 23(12): 3-5.
Venkataih M, Anil Kumar B and Sreedhar C 2015. Efficacy of newer insecticides against Spodoptera litura in groundnut (Arachis hypogaea L.). Journal of Oilseeds Research, 32(2):152-154.
Panse V G and Sukhatme P V 1988. Statistical Methods of Agricultural Workers, ICAR , New Delhi, pp. 187-202.
Tonishi M, Nakao H, Furaya T, Sed A, Kodama H, Tsubata K, Fujika S, Hirooka T and Nishimastu T 2005. Flubendiamide, a novel insecticide highly active against lepidopteron insect pests. Journal of Pesticide Science, 30(4): 354-360.
Vadodaria M E, Maisuria R B, Patel C J and Patel U G 2000. Insect growth regulator (IGR) - A new tool in the management of Helicoverpa in cotton in Gujarat. Pestology, 24(10): 11-24.
