Biological control of tomato moth Tuta absoluta (Lepidoptera: Gelechiidae) in laboratory
DOI:
https://doi.org/10.54153/sjpas.2021.v3i2.202Keywords:
Tuta absoluta, lancifolius Conocarpus , Punica grananatumAbstract
This experiment was conducted in the laboratories of the College of Life Sciences - University of Samarra to demonstrate the evaluation of the effectiveness of two types of plant extracts, including Punica grananatum leaves and lancifolius Conocarpus, in killing the third and fourth larval ages of T. absoluta after 24, 48 and 72 hours of treatment. The study was conducted under laboratory conditions at a temperature of 5 ± 25 and a relative humidity of 5 ± 70%, and four concentrations of plant extracts were tested (0.25, 0.50, 0.75 , 1)%, as the pomegranate leaf extract significantly exceeded the extract Conocarp, it reached the highest percentage of killing For the third and fourth larval ages (86.7, 73.3)%, respectively, at a concentration of 1% after 72 hours of treatment, and the lowest killing percentage was (11.7 and 13.3)%, respectively, at a concentration of 0.25% after 24 hours of treatment. Conocarpus leaf extract followed an extract Pomegranate leaves, as the highest killing rates for the third and fourth larval ages were (73.3 and 46.7)%, respectively at a concentration of 1% after 72 hours of treatment, and the lowest killing rates for the third and fourth larval ages were (16.7, 6.7)% respectively at a concentration of 0.25% 24 hours after the transaction.
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