Please use this identifier to cite or link to this item: http://krishikosh.egranth.ac.in/handle/1/5810041781
Authors: AMITABEGAUM BIRADAR
Advisor: Dr. SHEKHARAPPA
Title: MANAGEMENT OF SHOOT FLY (Atherigona soccata RONDANI) IN RABI SORGHUM
Publisher: University of Agricultural Sciences Dharwad
Language: en
Type: Thesis
Pages: 95
Agrotags: null
Keywords: MANAGEMENT OF SHOOT FLY (Atherigona soccata RONDANI) IN RABI SORGHUM
Abstract: Investigations on management of shoot fly Atherigona soccata Rondani in sorghum was carried out under field condition during rabi 2015 at MARS, Dharwad. Effect of seed dressers on germination percentage of sorghum seeds revealed that imidacloprid 70 WS (5 g/kg) had recorded higher germination percentage (82%). Seeds treated with imidacloprid 70 WS (5 g/kg) and chlorpyriphos 20 EC (5ml/kg) found superior by recording 0.73 eggs/plant and significantly least per cent deadhearts (14.83% and 15.17%) due to shoot fly. Highest yield was also recorded in these treatments (28.57 q/ha and 27.35 q/ha). None of the seed dressers caused phytotoxicity to sorghum crop. The critical stages for the management of shoot fly was found to be at 7, 14, 21 DAE. Spraying of cypermethrin 10 EC (0.5 ml/l) (0.27 eggs/plant, 12.83% deadhearts) and imidacloprid 17.8 SL (0.3 ml/l) (0.33 eggs/plant, 13.08% deadhearts) at 7, 14, 21 DAE were most effective for management of shoot fly. Highest BC ratio was obtained by spraying of cypermethrin 10 EC (0.5 ml/l) at 7, 14, 21 DAE followed by imidacloprid 17.8 SL (0.3 ml/l) at same intervals (1:3.22 and 1:2.82, respectively). Similar trend was exhibited with respect to grain yield. Applications of insecticides viz., rynaxypyr 20 SC (0.3 ml/l), fipronil 5 SC (1 ml/l), imidacloprid 17.8 SL (0.3 ml/l), acetamiprid 20 SP (0.2 g/l) and carbofuran 3G (30 kg/ha) found safe as they did not show any of the phytotoxicity symptoms chlorosis, white blotch and bronzing on the leaf surface up to four times the recommended dosage. Whereas cypermethrin 10 EC (2 ml/l) produced the symptoms like, chlorosis and white blotch at four times higher the recommended dosage. The similar trend was observed after second and third sprays.
Subject: Agricultural Entomology
Theme: MANAGEMENT OF SHOOT FLY (Atherigona soccata RONDANI) IN RABI SORGHUM
These Type: M.Sc
Issue Date: 2015-06
Appears in Collections:Thesis

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