The problem and control strategies of planthoppers in Malaysia [pests of rice]
1982
Habibudin, B.H. | Chang, P.M. | Vreden, G.V.
The Brown Planthopper (BPH), Nilaparvata lugens (Stal.) and the white-backed planthopper (WBPH), Sogatella furcifera (Horv.) have become major pests of rice in Malaysia. The effects of various cultural practices on their population dynamics are discussed. The populations are generally higher in the off-season (April-August) than in the main season (October-February) when precipitation is lower. Within each crop, WBPH occurs earlier in the crop stage whereas BPH usually builds up at the booting and heading stages. BPH has been identified to be the vector for Grassy Stunt and Ragged Stunt virus diseases but at present, these are at low incidence. Various chemicals for field control of both pests have been identified. Among these are some dust formulations and some spray formulations, namely MIPC, Propoxur, and BPMC, which exhibit good fumigation effects thereby allowing these to be used as foliar sprays
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