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Assay Of Nano Aluminium Oxide Essay

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Entomotoxic assay of nano-aluminum oxide and nano-zinc oxide against Sitophilus oryzae as a promising insecticide
By
El-Bendary,* H. M.; Abdel-Wahab, A. S.; El-Helaly, A. A.
* Plant Protection Department, Faculty of Agriculture, Fayoum University, Fayoum, Egypt
Department of Economic Entomology and Pesticides, Faculty of Agriculture, Cairo University, Giza, Egypt ABSTRACT
Rice is one of the most important food crops for more than half of the world 's population, the rice weevil, Sitophilus oryzae (L.) (Coleoptera: Curculionidae) is a major pest of stored rice in Egypt. The use of nanoparticles as pesticide could be promising alternative strategy to affect pests which have become resistant to pesticides. Two nano materials nano aluminum oxide and nano zinc oxide were tested against rice weevil under laboratory and store conditions. Nano aluminum oxide was found to be highly effective against S. oryzae, while nano zinc oxide has lowered effectiveness against the weevil.
Results showed that mortality percentage of S. oryzae were 65.34 ± 8.9 and
58.58 ± 8.3 after treatment with 0.5 gm / kg, 100.00± 9.6 and 81.81 ± 4.2 with
1 gm / kg. The mortality scored with 2 gm / kg 100.0 ± 0.0 and 80.80 ± 2.3 after 14 days of treatment with nano aluminum oxide and nano zinc oxide, respectively as compared to 0.0 ± 0.0 in the control and 59.4 ± 3.2 with
Malathion at LC50 value. Newly emerged adults were checked 20,

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