Nettle Caterpillars and Grasshoppers of Oil Palm in Indonesian

le Desmier de Chenon R., Sudharto Ps, Poeloengan Z H
Foilsithe 2016

Problems of Phytiaceae diseases on coconut palms [Cocos nucifera] in North Sumatra Indonesia

le Brahmana, J., Desmier de Chenon, R. (Pusat Penelitian Kelapa, Bandar Kuala, Sumatra (Indonesia))
Foilsithe 2013

Technique of pesticide root absorption for a longer term protection of coconut seed garden [in Sumatra]

le Ginting, C., Purba, A., Desmier de Chenon, R. (Pusat Penelitian Kelapa Bandar Kuala, Galang, Sumatra Utara (Indonesia))
Foilsithe 2013