In-vitro Biocontrol of Sugarcane Stem Borer (Eldana saccharina Walker) with Essential Oils from Aromatic Plants

Study Design and Objectives: Sugar cane production is threatened by the devastating action of larval populations Eldana saccharina Walker. Faced with this situation, search for sustainable control solutions a major challenge sugar producers. This study contributes to pest through use formulations based on essential oils local aromatic plants.
 Methodology: Bioassays survival larvae were therefore conducted in laboratory at Sucrivoire site Zuénoula. The obtained from eggs, incubated 5 days reared nutritional medium then transferred empty dishes after one week. Essential hydrodistillation three plants (Cymbopogon citratus, Ocimum gratissimum Zingiber officinale) used. Five concentrations these (1000, 2000, 4000, 8000 10000-ppm) tested direct contact batches 10 total 30 larvae/concentration. Dead counted daily mortality rate was calculated 24, 48 72 hours exposure.
 Results: As early as 24 hours, significant (P<0.001) 2000-ppm Cymbopogon citratus oils. They caused 63.33 80% respectively. officinale induced 4000-ppm. After exposure oils, increased significantly concentration (P<0.001). lowest lethal 50 90% (841.77 1905.06 ppm, respectively) oil gratissimum.
 Conclusion: can help Walker borers better sugarcane production.