Efficacy of Essential Oils of Two Local Weed Plants in Controlling Major Stored Wheat Insect Pests Rhyzopertha dominica (Fabricius) and Trogoderma granarium (Everts) Under Laboratory Conditions
Efficacy of Essential Oils of Two Local Weed Plants in Controlling Major Stored Wheat Insect Pests Rhyzopertha dominica (Fabricius) and Trogoderma granarium (Everts) Under Laboratory Conditions
Shamsher Ali* and Naheed Baloch
ABSTRACT
The research experiment was conducted in the laboratory to check the efficacy of essential oils of two indigenous plant species i.e., colocynth, Citrulus colocynthis, and Akk, Calotropis gigantea by using different 03 and 06ml/L concentrations of each plant seed oil against the lesser grain borer, Rhyzopertha dominica, and Khapra beetle, Trogoderma granarium infesting wheat grains. Observations were made on mortality, weight loss, and insect damaged grain. The results show the maximum mortality 62.0% of R. dominica and 34.3% of T. granarium at a 6ml/L concentrations of C. colocynthis. While lower mortality 1.8% and 5.2% were recorded at 3ml/L concentrations of C.gigantea. Whereas, weight loss and insect damage to grain were observed higher 28.3% 27.6% when wheat grains were treated with C. colocynthis on both pests. However, miminum weight loss and insect damaged grain 1.06%, 7.06%, and 2.0%, 12.1% were obtained when wheat grains were applied 3ml/L concentrations of extracted C. gigantea oil. Thus, it is concluded that colocynth extracted oil as most effective essential oil to protect wheat grains.
To share on other social networks, click on any share button. What are these?
