Determination of the Efficiency of Some Essential Oil Compounds on the Development of Jonsongrass [(Sorghum halepense (L.) Pers.]

• Main Authors: Ayşe YAZLIK, İlhan ÜREMİŞ
• Format: Article
• Language: English
• Published: Siirt University 2015-09-01
• Series: Türkiye Tarımsal Araştırmalar Dergisi
• Subjects: Sorghum halepense (L.) Pers.; Origanum vulgare L.; Lavandula angustifolia L.; Rosmarinus officinalis L.; essential oil; alternative control
• Online Access: http://dergipark.gov.tr/tutad/issue/26714/280993

Jonsongrass (Sorghum halepense (L.) Pers.) (SORHA) is one of the most troublesome perennial weeds caused important yield reductions in the agricultural and environmental problems in the non-agricultural fields. Using a combination of several control strategies is required because Sorha cannot be effectively controlled by a single control method. One of the methods that can be used for the control of Sorha is the usage of allelopathic chemicals. The efficiency of the plants [oregano (Origanum vulgare L.), lavender (Lavandula angustifolia L.) and rosemary (Rosmarinus officinalis L.)] that have allelochemicals on the SORHA were examined with this study. Using rosemary oil at the high rate (16 μl 38.465 cm2) gave the best results and reduced dry weight at 41.0% when it was applied as pre-emergence. The same essential oil rate obtained from rosemary was the highest adversely effects on the Sorha growth (48.0%) when it was used as post-emergence. Post-emergence application of all three volatile oils has provided more influence on the Sorha growth compared to the pre-emergence application.