DOI: 10.36347/sjavs.2017.v04i11.001

Pages: 434-441

Observation of the major pest yellow stem borer (YSB) and idle pest rice black bug (RBB) in the hot spot of the north coastal areas of West and Central Java were carried out in DS 2012, and was continued to observe the YSB and RBB on nursery as a deposit site of eggs pests in the WS 2012/2013. The results showed that rice stem borers cause an explosion in the Western part and Eastern part of Sukamandi rice research station of Indonesian Center for Rice Research (ICRR) at Ciasem- Subang District. The common rice pests in the Western part, Eastern part and Sukamandi was rice stem borer. The YSB attack on the DS 2012 became an inoculum for rice cultivation in the next season WS 2012/2013. RBB was an idle pest, because although RBB in high populations was captured on the light trap, but there didn’t damage to rice crops. There was a very close relationship between the number of egg masses YSB and YSB moths in the nursery with a real positive correlation. Likewise there was a very close relationship between the number of YSB moths in the nursery and YSB moths that captured on the light trap with a real positive correlation. This indicates that the number of moths in the nursery and the number of moths in light traps were a very useful tool for early monitoring system to forecast there will be YSB pest explosion in the ricefields.