Insecticidal activities of some medicinal plants against Sitophilus zeamais (Motschulsky) (Coleoptera: Curculionidae) on stored maize
Insecticidal activities of some medicinal plants against Sitophilus zeamais (Motschulsky) (Coleoptera: Curculionidae) on stored maize
复制标题
DOI：
10.1080/03235408.2013.763614
复制
发表时间：
2013-01-01
影响因子：
1
通讯作者：
Ogungbite, Olaniyi Charles
中科院分区：
文献类型：
--
作者：
Akinneye, Joseph Onaolapo;Ogungbite, Olaniyi Charles
进行研究以评估花椒、马兜铃、藤黄、巴戟天、硬毛大戟、巴豆、芋、无花果和四翅木在28 +/-2 ℃的环境温度和70 +/-5%的相对湿度下对玉米象的杀虫活性。植物粉末以5、10和20%（wt/wt）的玉米谷粒施用。观察了象甲死亡率、成虫羽化率、受害率、减少率和象甲穿孔指数。结果表明，只有Z. Zanthoxyloides和A. Ringens影响象鼻虫的死亡率，因为它们在施用96小时内均达到超过50%的象鼻虫死亡率。但Z.花椒粉对象甲的死亡率最高，在5%（wt/wt）时72 h内达到100%，其效果与其他粉末显著不同（p < 0.05）。另外，Z. zanthoxyloides、花椒A. ringens和M. Lucida在20%（wt/wt）时显示出对成虫象鼻虫出现的减少能力。而且，Z.花椒脂甚至在5%（wt/wt）时也能防止象鼻虫成虫的出现，但效果与A. ringens和M. lucida在20%（wt/wt）下，因为它们都实现了0%和0.67%的成虫羽化。这些粉末还减少了处理过的种子的伤害。Z.花椒总甙在5、10和20%（wt/wt）时对种子的伤害有一定的抑制作用;在20%（wt/wt）时，ringens防止种子损伤。然而，所有粉末的效果随着粉末浓度的增加而增加。
A study was carried out to evaluate the insecticidal activity of Zanthoxylum zanthoxyloides, Aristolochia ringens, Garcinia kola, Morinda lucida, Euphorbia hirta, Croton zambesicus, Colocasia esculenta, Ficus exasperata and Tetrapleura tetraptera on Sitophilus zeamais at ambient temperature of 28 +/- 2 degrees C and 70 +/- 5% relative humidity. The plants powder was applied at 5, 10 and 20% (wt/wt) of maize grain. Weevil mortality, adult emergence, percentage damage, percentage reduction and weevil perforation index were observed. The result obtained showed that only the powder of Z. zanthoxyloides and A. ringens effect mortality on the weevil as they both achieved more than 50% weevil mortality within 96 h of application. However, powder of Z. zanthoxyloides had the highest mortality effect on the weevil as it achieved 100% within 72 h at 5%(wt/wt) and its effect was significantly (p < 0.05) different from other powders. Also, powder of Z. zanthoxyloides, A. ringens and M. lucida showed a reduction capacity on the emergence of the adult weevil at 20%(wt/wt). Moreover, Z. zanthoxyloides prevented the emergence of the adult weevil even at 5%(wt/wt) but effect was not significantly different from A. ringens and M. lucida at 20%(wt/wt) as they both achieved 0% and 0.67% adult emergence. The powders also reduced the damage of the treated seeds. Z. zanthoxyloides prevented the damage of the seeds at 5, 10 and 20%(wt/wt) while A. ringens prevented the seed damage at 20%(wt/wt). However, effect of all the powders increased with increase in the powder concentration.