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VOL. 8, ISSUE 1 (2026)
Field efficacy of different chemicals against shoot and fruit borer, Earias vittella (Fabricius) on Okra
Authors
Boyakotla Manohar, Rudraboyina Sai Kiran, Dr. Ashwani Kumar
Abstract
The present investigation was conducted at Kishandevpur, Prayagraj,
Uttar Pradesh, during Kharif, 2020-21 to evaluate the field efficacy of
selected chemical and botanical treatments against the shoot and fruit borer, Earias
vittella (Fabricius) infesting okra. The experiment, entitled “Field
efficacy of different chemicals against shoot and fruit borer, Earias
vittella on okra,” comprised seven insecticidal treatments along with an
untreated control. The treatments included Imidacloprid 17.8% SL (T₁), Spinosad
45% SC (T₂), Emamectin benzoate 5% SG (T₃), Chlorantraniliprole 18.5% SC (T₄),
Abamectin 1.9% EC (T₅), Cypermethrin 25% EC (T₆), Neem oil 1500 ppm (T₇), and
an untreated control (T₀). These treatments were assessed for their
effectiveness in suppressing E. vittella infestation and their
consequent impact on okra yield. Among the evaluated treatments,
Chlorantraniliprole 18.5% SC (T₄) emerged as the most effective and
economically viable option, recording the highest benefit–cost ratio (1:9.3).
Its performance was statistically at par with Spinosad 45% SC (T₂), which
registered a benefit–cost ratio of 1:8.4. In contrast, Neem oil 1500 ppm (T₇)
was the least effective treatment, with a benefit–cost ratio of 1:5.2, though
it performed marginally better than the untreated control (1:4.2). In terms of
pest suppression, Chlorantraniliprole 18.5% SC (T₄) provided the highest level
of control over shoot and fruit borer infestation, followed in descending order
by Spinosad 45% SC (T₂), Emamectin benzoate 5% SG (T₃), Abamectin 1.9% EC (T₅),
Imidacloprid 17.8% SL (T₁), Cypermethrin 25% EC (T₆) and Neem oil 1500 ppm
(T₇). The untreated control recorded the highest level of infestation. Yield
analysis revealed that the maximum okra yield was obtained with
Chlorantraniliprole 18.5% SC (195.5 q ha⁻¹), whereas the minimum yield was
recorded under Neem oil 1500 ppm (92.4 q ha⁻¹). These findings indicate that
Chlorantraniliprole 18.5% SC is highly effective in managing E. vittella
while significantly enhancing okra productivity under field conditions.
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Pages:214-220
How to cite this article:
Boyakotla Manohar, Rudraboyina Sai Kiran, Dr. Ashwani Kumar "Field efficacy of different chemicals against shoot and fruit borer, <i>Earias vittella </i>(Fabricius) on Okra". International Journal of Agriculture and Plant Science, Vol 8, Issue 1, 2026, Pages 214-220
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