SITI NURULHIDAYAH AHMAD1*; SAHARUL ABILLAH MOHAMAD1; OTHMAN ARSHAD1 and MOHAMED MAZMIRA MOHD MASRI1
Received: 26 October 2022 Accepted: 16 March 2023 Published Online: 13 April 2023
The devastating infestation of bagworms in Malaysia had significant impact on oil palm production. The influence of beneficial plant, Turnera subulata on the natural enemies’ abundance in relation to bagworm, Pteroma pendula occurrence in an oil palm plantation located in Bagan Datuk, Perak was investigated. Sampling techniques (yellow sticky trap and sweep net) were employed in each of the sampling areas: (i) T. subulata groves, and (ii) oil palm inter-row. A total of 1035 individuals of insect natural enemies representing four orders and nine families were collected. The highest diversity was found in the T. subulata groves, with Shannon-Wiener index (H’) of 1.747 compared to inter-rows (1.447). These values are supported by the higher abundance of natural enemies on T. subulata groves that indicated 82% of total individuals captured, dominated by Chalchidae (580 individuals). Overall, the interaction between the techniques and locations was significant (F = 9.125; df = 1; P = 0.003). A significant positive correlation was observed between natural enemies and pupal stage of P. pendula (r = 0.659; r2 = 0.434; P <0.001). The findings from this study suggest that the propagation of insect natural enemies can be effectively achieved by the establishment of beneficial plants such as T. subulata.KEYWORDS:
1 Malaysian Palm Oil Board,
6 Persiaran Institusi, Bandar Baru Bangi,
43000 Kajang, Selangor, Malaysia.
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