Vol. 7, Issue 6 (2019)
Laboratory evaluation of toxicity of insecticides to populations of tomato pinworm, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)
Author(s): Sandeep Kumar Jalapathi, J Jayaraj, M Shanthi, M Theradi Mani, V Balasubramani, S Irulandi and S Prabhu
Abstract: The tomato pinworm, Tuta absoluta (Meyrick), an invasive pest has become a serious threat to world wide tomato production. Depending on the infestation level and cropping system control relies on insecticides. Within few years Tuta absoluta has also developed resistance to a wide range of insecticides. Laboratory bioassay showed the LC50 values of spinosad are estimated that on larval instars 2nd, 3rd and 4th as 0.37 ppm, 0.45 ppm and 0.61 ppm, for indoxacarb (0.93 ppm, 1.12 ppm and 1.54 ppm), for chlorantraniliprole (0.32 ppm, 0.49 ppm and 0.61 ppm) for chlorpyrifos (1124.65 ppm, 2183.48 ppm and 3455.62 ppm) for flubendiamide (1.56ppm, 1.78 ppm and 2.48 ppm) and imidacloprid (1.15 ppm, 1.23 ppm and 2.16 ppm) respectively. T. absoluta has the potential to develop pesticide resistance very rapidly due to short generation time and high reproductive potential. Insecticides are found to be as effective need to be used judiciously with the rotation of various insecticides with different modes of actions.
Pages: 745-748 | 297 Views 54 Downloads
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How to cite this article:
Sandeep Kumar Jalapathi, J Jayaraj, M Shanthi, M Theradi Mani, V Balasubramani, S Irulandi, S Prabhu. Laboratory evaluation of toxicity of insecticides to populations of tomato pinworm, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae). Int J Chem Stud 2019;7(6):745-748.
