Compatibility of Emamectin Benzoate 5 SG with Agrochemicals against Okra Fruit Borer, Helicoverpa armigera
2013
Kōvintan̲, Ka. | Gunasekaran, K. | Kuttalam, S
Studies were conducted in both laboratory (physical and phytotoxcity experiment) and field (bio efficacy and phytotoxcity) to evaluate the biological compatibility of emamectin benzoate 5 SG at recommended dose of 11 g a.i. ha⁻¹ with commonly used agrochemicals viz., urea (2%), carbendazim 50 WP (0.1%), endosulfan 35 EC (350 g a.i.) against okra fruit borer, Helicoverpa armigera Hubner. Two field experiments were conducted, first season at Deenampalayam during January 2009 - March 2009 and second season at Udayampalayam during April 2009 - June 2009. The new formulation of emamectin benzoate 5 SG at 11 g a.i. ha⁻¹ and combination treatments were highly effective and reduced the okra fruit borer H. armigera and fruit damage when compared to other agrochemicals alone. Emamectin benzoate 5 SG at 11 g a.i. ha⁻¹ was physically compatible with endosulfan, carbendazim and urea which did not produce any sedimentation. When emamectin benzoate 5 SG was sprayed as tank mix on okra plants, in combination with urea, carbendazim and endosulfan it did not exhibit any phytotoxic symptoms on okra plants and was effective in controlling H. armigera and their damage to fruits.
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