Biological agents and insecticides to control bunch moth Tirathaba rufivena in oil palm estates in Sarawak Malaysia

Norman Kamarudin, . and Siti Ramlah Ahmad Ali, . and Siti Nurulhidayah Ahmad, . and Su C. M., . and Mohamad Rosman Sulaiman, . and Zulkefli Masijan, . and Saharul Abillah Mohamad, . and Ramle Moslim, . and Siaw T. C., . Biological agents and insecticides to control bunch moth Tirathaba rufivena in oil palm estates in Sarawak Malaysia. pp. 323-332. ISSN 1511-2780

The effectiveness of biological products and insecticides in controlling the infestation of Tirathaba rufivena in oil palm estates in Sarawak Malaysia was evaluated. The study was conducted in two sites from November 2014 to May 2015 on oil palm aged 4 and 5 years. The treatments tested in both sites were commercially available and MPOB-produced Bacillus thuringiensis product Metarhizium anisopliae chlorantraniliprole and cypermethrin. The study showed that the first and second instar larvae of bunch moth were found mostly on male inflorescences and the third and fourth instar larvae were found on female inflorescences and developing bunches. All treatments were effective in reducing the larval population of bunch moth as early as seven days after the first treatment (DAFT). However the larval population at plots treated with B. thuringiensis recorded inconsistent results. In Site 1 it was observed that only the commercial B. thuringiensis was able to control the larval population of bunch moth up to 34 DAFT. Whereas in Site 2 both B. thuringiensis and Metarhizium anisopliae products gave control as good as chemicals up to 49 DAFT. Chlorantraniliprole application gave rapid reduction and was able to reduce and maintain low population of bunch moth up to 59 days after the last spraying. A more comprehensive study is needed to be carried out by incorporating other control measures such as mass trapping of adults and spraying of larvae using biological and chemical products in the coastal peat areas.

Full text available from: Official URL: http://jopr.mpob.gov.my/biological-agents-and-inse...

Abstract

The effectiveness of biological products and insecticides in controlling the infestation of Tirathaba rufivena in oil palm estates in Sarawak Malaysia was evaluated. The study was conducted in two sites from November 2014 to May 2015 on oil palm aged 4 and 5 years. The treatments tested in both sites were commercially available and MPOB-produced Bacillus thuringiensis product Metarhizium anisopliae chlorantraniliprole and cypermethrin. The study showed that the first and second instar larvae of bunch moth were found mostly on male inflorescences and the third and fourth instar larvae were found on female inflorescences and developing bunches. All treatments were effective in reducing the larval population of bunch moth as early as seven days after the first treatment (DAFT). However the larval population at plots treated with B. thuringiensis recorded inconsistent results. In Site 1 it was observed that only the commercial B. thuringiensis was able to control the larval population of bunch moth up to 34 DAFT. Whereas in Site 2 both B. thuringiensis and Metarhizium anisopliae products gave control as good as chemicals up to 49 DAFT. Chlorantraniliprole application gave rapid reduction and was able to reduce and maintain low population of bunch moth up to 59 days after the last spraying. A more comprehensive study is needed to be carried out by incorporating other control measures such as mass trapping of adults and spraying of larvae using biological and chemical products in the coastal peat areas.

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Item Type:	Article
AGROVOC Term:	Pests of plants
AGROVOC Term:	Arthropods
AGROVOC Term:	Oil palms
AGROVOC Term:	Bacillus thuringiensis
AGROVOC Term:	Metarhizium anisopliae
AGROVOC Term:	Cypermethrin
AGROVOC Term:	Biological control
AGROVOC Term:	Biological control agents
AGROVOC Term:	Biological control organisms
AGROVOC Term:	Chemical control
Geographical Term:	Malaysia
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	28 Apr 2025 06:53
URI:	http://webagris.upm.edu.my/id/eprint/24151

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