Repellent Effect of the Pandanus (Pandanus amaryllifolius Roxb.) and Neem (Azadirachta Indica) Against Rice Weevil Sitophilus oryzae L. (Coleoptera, Curculionidae)

Abstract

Slamet Fauzi, Sigit Prastowo

The aim of this study was to determine the effect of Pandanus (Pandanus amaryllifolius Roxb.) and Neem (Azadirachta indica) leaves powder on the repellency, mortality, and weight loss of grains due to Sitophilus oryzae. The methodes of this study used a completely randomized design (CRD) with 7 treatments and 4 replications. The results of this study indicate that the best treatment in terms of causing repellency was the treatment of 10 grams of pandanus with a percentage of 87.5%, while the best treatment in terms of causing pest mortality and was also able to reduce the risk of rice weight loss due to Sitophilus oryzae was treatment 10 gram of neem with a mortality percentage of 76.25% and weight loss of rice 3.14%. This research showed that neem leaf com- pounds are better in terms of causing mortality, while Pandanus compounds are better in terms of causing mortality of Sitophilus oryzae.

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