Journal of Medicinal Plants
فصلنامه گياهان دارویی
J. Med. Plants
Medical Sciences
http://jmp.ir
1
admin
2717-204X
2717-2058
10.61186/jmp
14
8888
13
en
jalali
1391
5
1
gregorian
2012
8
1
11
43
online
1
fulltext
en
Insecticidal Effects of Peppermint and Black Pepper Essential Oils against Rice Weevil, <i>Sitophilus oryzae</i> L. and Rice Moth, <i>Corcyra cephalonica</i> (St.)
Insecticidal Effects of Peppermint and Black Pepper Essential Oils against Rice Weevil, <i>Sitophilus oryzae</i> L. and Rice Moth, <i>Corcyra cephalonica</i> (St.)
گياهان دارویی
Medicinal Plants
پژوهشی
Research
<div dir="ltr" style="text-align: justify;"><span style="font-size:12px;"><span style="font-family:Tahoma;"> <strong>Background:</strong> The rice weevil, <em>Sitophilus oryzae </em>and rice moth, <em>Corcyra cephalonica</em> are major and cosmopolitan insect. Adults of <em>S. oryzae </em>(male and female) and both larvae are insatiable feeders on a great variety of grains.<br>
<strong>Objective:</strong> This study was conducted to estimate the insecticidal effect of essential oils from peppermint, <em>Mentha piperita</em> L. and black pepper, <em>Piper nigrum</em> L. against two major stored product insects.<br>
<strong>Methods:</strong> Essential oils from two species of plants were obtained by clevenger-type water distillation. The major compounds in these essential oils were identified using gas chromatography-mass spectrometry and their insecticidal effect was tested against adults of the rice weevil, <em>Sitophilus oryzae</em> L. and the 3<sup>rd</sup> instars larvae of rice moth, <em>Corcyra cephalonica</em> (St.).<br>
<strong>Results:</strong> The major compounds found in peppermint were menthol, isomenthone, limonene and cineole and in black pepper were limonene, α and β pinene and caryophyllene. <span style="color:black;">Highest toxicities were observed against <em>S. oryzae</em> populations treated with <em>M. piperita</em> and <em>P. nigrum</em> essential oils with LC<sub>50 </sub>values of 85.0 and 287.7 µL/L air after 72 hours after commencement, respectively. In the case of <em>C. cephalonica</em> larvae, the LC<sub>50</sub> values were 343.9 and 530.5 µL/L air for <em>M. piperita</em> and <em>P. nigrum</em> essential oils at 72 hours after commencement, respectively. These results are attributed to the compounds present in essential oils of <em>M. piperita</em> and <em>P. nigrum</em>.</span><br>
<strong><span new="" roman="" times="">Conclusion:</span></strong> <span new="" roman="" times="">It was resulted that <em>M. piperita</em> and <em>P. nigrum</em> oils have insecticidal effects against <em>S. oryzae</em> and <em>C. cephalonica</em>. For this reasons, the selected plant oils have potential for development of novel insecticides<span style="color:black;">.</span></span></span></span></div>
<div dir="ltr" style="text-align: justify;"><span style="font-size:12px;"><span style="font-family:Tahoma;"> <strong>Background:</strong> The rice weevil, <em>Sitophilus oryzae </em>and rice moth, <em>Corcyra cephalonica</em> are major and cosmopolitan insect. Adults of <em>S. oryzae </em>(male and female) and both larvae are insatiable feeders on a great variety of grains.<br>
<strong>Objective:</strong> This study was conducted to estimate the insecticidal effect of essential oils from peppermint, <em>Mentha piperita</em> L. and black pepper, <em>Piper nigrum</em> L. against two major stored product insects.<br>
<strong>Methods:</strong> Essential oils from two species of plants were obtained by clevenger-type water distillation. The major compounds in these essential oils were identified using gas chromatography-mass spectrometry and their insecticidal effect was tested against adults of the rice weevil, <em>Sitophilus oryzae</em> L. and the 3<sup>rd</sup> instars larvae of rice moth, <em>Corcyra cephalonica</em> (St.).<br>
<strong>Results:</strong> The major compounds found in peppermint were menthol, isomenthone, limonene and cineole and in black pepper were limonene, α and β pinene and caryophyllene. <span style="color:black;">Highest toxicities were observed against <em>S. oryzae</em> populations treated with <em>M. piperita</em> and <em>P. nigrum</em> essential oils with LC<sub>50 </sub>values of 85.0 and 287.7 µL/L air after 72 hours after commencement, respectively. In the case of <em>C. cephalonica</em> larvae, the LC<sub>50</sub> values were 343.9 and 530.5 µL/L air for <em>M. piperita</em> and <em>P. nigrum</em> essential oils at 72 hours after commencement, respectively. These results are attributed to the compounds present in essential oils of <em>M. piperita</em> and <em>P. nigrum</em>.</span><br>
<strong><span new="" roman="" times="">Conclusion:</span></strong> <span new="" roman="" times="">It was resulted that <em>M. piperita</em> and <em>P. nigrum</em> oils have insecticidal effects against <em>S. oryzae</em> and <em>C. cephalonica</em>. For this reasons, the selected plant oils have potential for development of novel insecticides<span style="color:black;">.</span></span></span></span></div>
,Sitophilus oryzae, Corcyra cephalonica, Essential oil, Mentha piperita, Piper nigrum, Bioassay
Sitophilus oryzae, Corcyra cephalonica, Essential oil, Mentha piperita, Piper nigrum, Bioassay
97
110
http://jmp.ir/browse.php?a_code=A-10-126-1&slc_lang=en&sid=1
M
Khani
M
Khani
khanimousa@yahoo.com
100319475328460042258
100319475328460042258
Yes
Department of Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR
Department of Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR
R
Muhamad Awang
R
Muhamad Awang
100319475328460042259
100319475328460042259
No
Department of Plant Protection, Faculty of Agriculture, University Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
Department of Plant Protection, Faculty of Agriculture, University Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
D
Omar
D
Omar
100319475328460042260
100319475328460042260
No
Department of Plant Protection, Faculty of Agriculture, University Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
Department of Plant Protection, Faculty of Agriculture, University Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia