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An experiment was conducted at Regional Sugarcane and Rice Research Station, Rudrur during 2011 and 2012, to

SUMMARY :Rice, Oryza sativa L. is the most economically important food crop grown by millions of people in India. It plays a major nutritional role in the diet of people of many developing nations (Norman and Kebe, 2006; FAO, 2013).The productivity of rice is threatened by a wide range of pre and post harvest pests (Ashamo and Akinnawonu, 2012). Stored product insect pests such as Sitophilus oryzae (Linnaeus), Sitophilus zeamais (Motschulsky), Rhyzoperthadominica (Fabricius) and Sitotroga cerealella (Olivier) are usually seen on rice in most of the stores. An experiment was conducted at Seed Research and Technology Centre, Rajendranagar, Professor Jayashankar Telangana State Agricultural University, Hyderabad during 2015-16 to study the efficacy of botanicals on storability of paddy seeds through seed treatments. The storage studies revealed that among botanical seed treatments, significantly highest seed germination was recorded inseeds treated with Acorus calamus @ 10ml per kg seed (96.33%) followed by Karanj oil @ 5ml per kg seed (90.33%) and the lowest in untreated seeds (80.67%). Significantly highest seedling vigour was also observed in Acorus calamus @ 10ml per kg seed (1947) followed by Karanj oil @ 5ml per kg seed (1853) while significantly lowest seedling vigour index was recorded in untreated control (1458). Though lowest seed infestation was recorded in Karanj oil @ 5 ml/kg seed (5.3 %) but it was on par with Acorus calamus (8.0 %) at the end of twelve months of storage. Among the various treatments, Acorus calamus and Karanj oil were found to be superior in maintaining seed quality through out the storage period over control. In all the treatments, seed quality parameters declined progressively with increase in storage period. The average germination per cent age and vigour index of the seed at the beginning of storage period was 99.10 per cent and 3556, respectively, which declined to 90.71 per cent and 1766.71, respectively at the end of 12 th month of storage.How to cite this article : Padmasri, A., Srinivas, C., Kumar, B. Anil and Parimala, K. (2017). Evaluation of botanicals and insecticides against Sitotroga cerealella (Olivier) on stored paddy seeds.

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SUMMARY :The okra samples were collected from three local vegetable markets viz., Rythu bazar, Tower circle and Ramnagar of Karimnagar during 2014-15 and analyzed for residues following the validated QuChERS method. The results revealed that, monitored samples of okra contained 10 pesticide residues namely acetamiprid, flubendiamide,chlorpyriphos, profenophos, fipronil, spinosad, lambda cyhalothrin, monocrotophos, acephate and imidacloprid and the commonly detected pesticides in the three market samples were flubendiamide, lambda cyhalothrin, fipronil, profenophos, chlorpyriphos and acetamiprid. The insecticide residues detected in the okra samples collected from Rythu bazar vegetable market were flubendiamide (0.142 mg/kg), profenophos (0.042 mg/kg), acephate (0.193 mg/ kg), fipronil (0.028 mg/kg), chlorpyrifos (0.275 mg/kg), lambda-cyhalothrin (0.241 mg/kg), acetamiprid (0.167 mg/kg), monocrotophos (0.011 mg/kg), and imidacloprid (0.032 mg/kg) while spinosad was not detected. The insecticide residues detected in the okra samples collected from Tower circle vegetable market were flubendiamide(0.183 mg/kg),chlorpyriphos (0.123 mg/kg), profenophos (0.065 mg/kg), acetamiprid (0.242 mg/kg), acephate (0.009 mg/kg),fipronil(0.013 mg/kg),spinosad (0.128 mg/kg),lambda cyhalothrin (0.201 mg/kg) and monocrotophos (0.022 mg/kg) while imidacloprid was not detected.The insecticide residues detected in the okra samples collected from Ramnagar vegetable marketwere lambda cyhalothrin (0.041 mg/kg), flubendiamide (0.168 mg/kg), chlorpyriphos (0.289 mg/kg), acetamiprid (0.142 mg/kg), profenophos (0.052 mg/kg), fipronil (0.042 mg/kg), imidacloprid (0.062 mg/kg) and acephate (0.184 mg/kg)while monocrotophos was not detected. Assessment on the permissibility of the three market samples of okra for safe consumption was also analysed. Among the samples analyzed for different insecticide residues, two of the insecticides i.e. chlorpyriphos and acetamiprid have shown above MRL value established by Codex, while the remaining insecticide residues detected in the samples were below the MRL.The chlorpyriphos residues exceeding the MRL were recorded in three markets i.e., Rythu bazar (0.275 mg/kg), Tower circle (0.346 mg/kg) and Ramnagar (0.289 mg/kg). The acetamiprid residues exceeding the MRL were recorded in two markets i.e., Rythu bazar (0.340 mg/kg) and Tower circle (0.242 mg/kg).