Recent development in rubber disease management Malaysia

Chee K.H., . (1990) Recent development in rubber disease management Malaysia. [Proceedings Paper]

Among forty known diseases of Hevea rubber about a dozen are of world-wide importance and most of these occur in Malaysia. A notable exception is the devastation of South American leaf blight Microcyclus ulei which is fortunately still confined to the Americas. In Malaysia rubber clones are screened for resistance to certain diseases before being recommended for large scale planting in accordance to the 'Environmax' planting practices. In addition to this inbuilt genetic resistance chemicals are used whenever appropriate. Some of the newer fungicides have been found to be highly effective. For white root disease Rigidoporus lignosus control soil drenching with triazole compounds propiconazole and triadimefon have shown promise. Pink disease Corticium salmonicolor can be speedily treated by mechanised spraying of Bordeaux mixture or chlorothalonil. Control of black stripe Phytophthora spp. is achieved either by trunk injection with phosphorous acid or by panel applications of captafol metalaxyl or oxadixyl formulated in a cellulose base. Propineb is effective against Corynespora leaf spot Corynespora cassicola and Bird's eye spot Drechslera hevea; and prochloraz against Secondary leaf fallSLF caused by Colletotrichum gloeosporioides and Oidium heveae. New leaves escape SLF following artificial defoliation by applying sodium cacodylate or ethyl

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Abstract

Among forty known diseases of Hevea rubber about a dozen are of world-wide importance and most of these occur in Malaysia. A notable exception is the devastation of South American leaf blight Microcyclus ulei which is fortunately still confined to the Americas. In Malaysia rubber clones are screened for resistance to certain diseases before being recommended for large scale planting in accordance to the 'Environmax' planting practices. In addition to this inbuilt genetic resistance chemicals are used whenever appropriate. Some of the newer fungicides have been found to be highly effective. For white root disease Rigidoporus lignosus control soil drenching with triazole compounds propiconazole and triadimefon have shown promise. Pink disease Corticium salmonicolor can be speedily treated by mechanised spraying of Bordeaux mixture or chlorothalonil. Control of black stripe Phytophthora spp. is achieved either by trunk injection with phosphorous acid or by panel applications of captafol metalaxyl or oxadixyl formulated in a cellulose base. Propineb is effective against Corynespora leaf spot Corynespora cassicola and Bird's eye spot Drechslera hevea; and prochloraz against Secondary leaf fallSLF caused by Colletotrichum gloeosporioides and Oidium heveae. New leaves escape SLF following artificial defoliation by applying sodium cacodylate or ethyl

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Item Type:	Proceedings Paper
Additional Information:	1 table; 39 ref.
AGROVOC Term:	HEVEA BRASILIENSIS
AGROVOC Term:	SELECCION
AGROVOC Term:	CONTROL DE ENFERMEDADES
AGROVOC Term:	MALASIA/ ENFERMEDADES DE LAS PLANTAS
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:26
URI:	http://webagris.upm.edu.my/id/eprint/14883

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