Efficacy of granulosis virus (GV) used in conjunction with abamectin and indoxacarb in the management of Plutella xylostella (L.) (Yponomeutidae: Lepidoptera) on cauliflower

Efficacy of granulosis virus (GV) used in conjunction with abamectin and indoxacarb in the management of Plutella xylostella (L.) (Yponomeutidae: Lepidoptera) on cauliflower

2002

E01285

Two field trials were taken up to test the combined efficacy of PXGV with abamectin and indoxacarb against the diamondback moth Plutella xylostella (L.) on cauliflower at Irruttupalliam near Coimbatore during January - June 2001. The results revealed that the application of PXGV at 0.75x10 13 OB ha-1 in conjunction with abamectin at 4.75 g a.i. ha-1 was the most effective in controlling the pest and increasing the yield of flower heads. This combination was on par with abamectin 9.5 g a.i.ha-1 in the first trial. In both the trials GV at 1.5 x10 13 OB ha-1 was the next best treatment which was comparable with GV at 0.75x10 13 OB ha-1 + indoxacarb 14.5 g a.i. ha-1.GV at 0.75x10 13 OB ha, abamectin at 4.75 g a.i. ha-1 and indoxacarb at 14.5g a.i. ha-1 were ineffective against P. xylostella. In the first trial Bacillus thuringiensis at 0.5 kg ha-1 was on par with GV at 1.5x10 13 OB ha-1, but in the second, the GV was found to be better.

v.89(4/6):207-210, MADRAS AGRICULTURAL JOURNAL

Research > Published Articles