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Biological Effects of Extract Ginger Zingiber officinali in Cotton Leaf Worm Larvae Spodoptera littoralis (Boisd.) | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 17, Issue 0, 2017, Pages 207-212 | ||
| Authors | ||
| Hind I. Ali; Alaa N. Aifan; Omar I. Ismail | ||
| Abstract | ||
| This study was conducted to test the effect of ethanol extract of Zingiber officinali on the larval stage of cotton leaf worm Spodoptera littoralis. In this study the third and sixth instar larvae were food treated by using the concentrations of 2, 4 and 6% of extract.The results showed that the early stage larvae were the most susceptible, larval mortality was increased with the increase of the concentration. The highest mortality percentage reached to 60% for the third instar larvae, while reached to 26.6 % for the sixth instar larvae. The results also pointed prolonged durations of both larval and pupal stages, depending on the conc. used in the test, 6% conc. cause an increase in the longest period of growth both stage. ethanol extract affected negatively the fecundity of adults emerged from treated different larval stages, declining the average number of eggs reached to 557egg/female and the hatching percentage reached to 65% of adults emerged from treated third larval stages. | ||
| Keywords | ||
| Effects; ginger; Extract; Spodoptera littoralis | ||
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