Pengaruh Campuran Insektisida terhadap Ulat Bawang Spodoptera exigua Hubn.
Abstract
ABSTRACT. Moekasan, T.K. and R. Murtiningsih. 2010. The Effect of Insecticides Combination Against Beat Armyworm Spodoptera exigua Hubn. The purpose of the study was to determine the efficacy of combination of four insecticides, i.e. spinosad (Tracer), methomyl (Metindo), thiodicarb (Larvin), and chlorpyrifos (Dursban) against beat armyworm, S. exigua on shallots. The experiment was conducted from April until September 2007 at Kendawa Village, Jatibarang Subdistrict, Brebes District, Central Java (± 2 m asl). The treatments were (a) spinosad + methomyl, (b) spinosad + thiodicarb, (c) chlorpyrifos + methomyl, (d) spinosad, (e) thiodicarb, (f) chlorpyrifos, (g) methomyl, and (h) check. The treatments were arranged in a randomized block design with four replications. The results showed that spinosad + methomyl was the most effective insecticide combination to suppress S. exigua. This combination could sustain the high yield and the price of spinosad + methomyl combination was cheaper than the spinosad price singly. Therefore, the application of spinosad + methomyl was more profitable compare to spinosad singly.
Keywords
DOI: http://dx.doi.org/10.21082/jhort.v20n1.2010.p%25p
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