Vol. 7, Issue 5 (2019)
Efficacy of novel insecticidal seed treatments on mortality of rice weevil [Sitophilus oryzae (Linnaeus)]
Author(s): A Padmasri, C Srinivas, K Vijaya Lakshmi, T Pradeep and B Anil
Abstract: A study was conducted to evaluate the effectiveness of some newer insecticidal molecules viz., Emamectin benzoate (Proclaim 5 SG) @ 2 ppm, Spinosad (Tracer 45 SC) @ 2 ppm, Indoxacarb (Avaunt 14.5 SC) @ 2 ppm, Rynaxypyr (Coragen 20 SC) @ 2ppm, Chlorfenapyr (Intrepid 10 EC) @ 2 ppm, Profenofos (Curacron 50 EC) @ 2 ppm, Novaluron (Rimon 10 EC) @ 5 ppm, Deltamethrin 2. 8 EC @ 1 ppm along with untreated control against rice weevil and to assess the storability of treated seed. All the nine treatments were replicated thrice and statistically analyzed by using completely randomized design. The data on residual toxicity of insecticides on mortality of rice weevil was assessed immediately after seed treatment and at every three months interval upto nine months of storage and similarly, seed damage (per cent), weight loss (per cent) and adult emergence were also recorded. The results revealed that Spinosad (Tracer 45 SC) @ 2 ppm kg-1 seed found to be significantly superior among the treatments as it resulted hundred per cent mortality within three days after release of adult Sitophilus oryzae (L), lowest infestation (0.33 per cent), weight loss (0.05 per cent) and adult emergence (1.00) at the end of nine months of storage.
Pages: 1800-1804 | 243 Views 56 Downloads
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How to cite this article:
A Padmasri, C Srinivas, K Vijaya Lakshmi, T Pradeep, B Anil. Efficacy of novel insecticidal seed treatments on mortality of rice weevil [Sitophilus oryzae (Linnaeus)]. Int J Chem Stud 2019;7(5):1800-1804.
