Cropguard sup R spray oil applied alone and as adjuvant as pesticide enhancer for the control of major insect pests of string beans and eggplant
2016
Patricio, M.G. | Manipon, A.O. | Pagaduan, R. | Melegrito, R.S.
The use of adjuvant in crop production is now the recent trend and has indicated some potential to increase effectiveness of some chemical products when mixed together. The study determined the performance of CropGuard sup R spray oil alone and in combination with the insecticide Rynaxpr against major insect pests in string beans and eggplant at the Research Experimental Area Central Luzon State University, Science City of Muñoz, Nueva Ecija [Philippines]. Three rates of CropGuard sup R viz., 32, 64 and 96ml/16Lwater, chemical insecticide Rynaxpr at full and half the recommended rate (RR) at 30ml and 15 mL/16L water, respectively and their combination were evaluated. An adjuvant Hoestick plus insecticide Rynaxpr and untreated control served as standard checks.Application of CropGuard sup R at 64 and 96 ml/6L water provided resulted to low aphid population, but not significant different from combination with either full and half RR of insecticide Rynaxypr. On eggplant, results revealed that application of CropGuard sup R at 32ml/16Lwater + RR Rynaxpr insecticide provided consistently and significantly the lowest number of green leafhoppers, aphids and fruit borer larvae as compared with the rest of treatments. On the other hand, the population of beneficial insect, coccinellid beetle was slightly affected with the application of Cropguard sup R at any rates + RR Rynaxpr insecticide. Significantly more (73) and heavier (6.24kg per plot) fruits were also obtained from plants treated with Cropguard sup R at 32ml/16L water and Rynaxpr.
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