Roles of several alternate hosts on the survival and egg-laying capability of the Malayan black rice bugs

Mohamed Mohd Salleh, . and Chang P.M., . and Abd Wahid Abu Shah, . Roles of several alternate hosts on the survival and egg-laying capability of the Malayan black rice bugs. pp. 17-23. ISSN 0127-791X

Adult Malayan black rice bugs (Scotinophara coarctata) were able to survive for 80 days on rice cut stems compared to 40 46 55 and 69 days on cut stems of Echinochloa crus-galli Scirpus grossus Brachiaria mutica and Panicum amplexicaule respectively. On cut stems of Typha angustifolia the black bugs were able to survive for more than 36 days and on Scleria sumatrensis for only l7 days. The bugs were able to survive up to 51 days on water alone but for only 2 days without it. Despite their ability to survive on P. amplexicaule B. mutica and E. crus-galli for more than a month their egg laying ability was 27 times less than that on rice cut stems. No eggs were produced on other weeds. Newly hatched nymphs were able to become adults only on rice cut stems and cut stems of B. mutica and E. crus-galli. After the rice plants had been harvested adults and nymphs of the black rice bugs were able to survive and become adults on some weeds but they still need rice plants to produce large quantities of eggs.

Full text available from:

Abstract

Adult Malayan black rice bugs (Scotinophara coarctata) were able to survive for 80 days on rice cut stems compared to 40 46 55 and 69 days on cut stems of Echinochloa crus-galli Scirpus grossus Brachiaria mutica and Panicum amplexicaule respectively. On cut stems of Typha angustifolia the black bugs were able to survive for more than 36 days and on Scleria sumatrensis for only l7 days. The bugs were able to survive up to 51 days on water alone but for only 2 days without it. Despite their ability to survive on P. amplexicaule B. mutica and E. crus-galli for more than a month their egg laying ability was 27 times less than that on rice cut stems. No eggs were produced on other weeds. Newly hatched nymphs were able to become adults only on rice cut stems and cut stems of B. mutica and E. crus-galli. After the rice plants had been harvested adults and nymphs of the black rice bugs were able to survive and become adults on some weeds but they still need rice plants to produce large quantities of eggs.

[error in script]

Item Type:	Article
Additional Information:	3 graphs; 2 tables; 14 ref. Summary (En Ms)
AGROVOC Term:	ORYZA SATIVA
AGROVOC Term:	SCOTINOPHARA
AGROVOC Term:	ECHINOCHLOA FRUMENTACEA
AGROVOC Term:	SCIRPUS/ BRACHIARIA MUTICA
AGROVOC Term:	PANICUM
AGROVOC Term:	TYPHACEAE
AGROVOC Term:	SUPERVIVENCIA
AGROVOC Term:	HUESPEDES INTERMEDIARIOS
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:55
URI:	http://webagris.upm.edu.my/id/eprint/20148

Actions (login required)

View Item