Plant essential oils as Grain Protectants against Rhizopertha dominica (Coleoptera:Bostrichidae) During Storage
Abstract
This study aimed to control lesser grain borer Rhizopertha dominica via using of Zingier officinale (ginger) and Helianthus annuus (sunflower) oils as protectant of Tritium spp. The inhibition rates were 38.00, 28.98, 22.67 and 4.60% respectively when the wheat treated by 0.5, 1, 1.5and 2% of sunflower oil while the inhibition rates were 35.50, 28.00, 7.25 and 3.25% respectively when the wheat treated by the same concentrations of Z. officinale oil. The damage assessments were decreased while increasing the concentration of the oils, the H. annuus oil is more protectant than Z. officinale oil in 2%. Approximately the two plant oils caused same damage percentage when the wheat treated by 1% during storage. To sum up, the results strengthen the possibility of using the plant oils for the management this insect
