Population abundance of whitefly Bemisia tabaci (Genn.) on chilli and other vegetable crops under glasshouse conditions

Ismail Abuzid, . and Mohamad Roff Mohd. Noor, . and Idris Abd. Ghani, . and Mansour Salem A. Attia, . and Khalid A. Saad, . Population abundance of whitefly Bemisia tabaci (Genn.) on chilli and other vegetable crops under glasshouse conditions. pp. 149-157. ISSN 1394-9829

Whitefly (WF) Bemisia tabaci (Genn) is one of the most damaging pests for several vegetables in Malaysia which affects plant vigour transmits geminiviruses and reduces crop quality. This study estimated the population abundance of B. tabaci on chilli Capsicum annuum MC 11 alone MC 11 planted with brinjal Solanum melongena MT e1 tomato Lycopersicum esculentum MT 1 or okra Abelmoschus esculentus MK BE1 and MC 11 planted with a combination of all the other crops under glasshouse conditions. WF adults egg and nymph samples were obtained every 4 days from the underside of the leaf (abaxial) on the upper middle and lower strata of the plant for one month. The total mean numbers of WF adults eggs and nymphs were significantly higher (p 0.05) on chilli in the monoculture experiment than on chilli in multiple crops experiment with okra tomato and brinjal. Results also showed that the population of WF adults and eggs were significantly higher in the upper stratum than in themiddle and lower plant strata. Interestingly the number of nymphs was higher in the middle stratum than in the other strata in all treatments. This phenomenon indicated that mixed crops can lower pest populations and indirectly reduce virus disease incidence.

Full text available from: Official URL: http://ejtafs.mardi.gov.my/jtafs/41-1/Population%2...

Abstract

Whitefly (WF) Bemisia tabaci (Genn) is one of the most damaging pests for several vegetables in Malaysia which affects plant vigour transmits geminiviruses and reduces crop quality. This study estimated the population abundance of B. tabaci on chilli Capsicum annuum MC 11 alone MC 11 planted with brinjal Solanum melongena MT e1 tomato Lycopersicum esculentum MT 1 or okra Abelmoschus esculentus MK BE1 and MC 11 planted with a combination of all the other crops under glasshouse conditions. WF adults egg and nymph samples were obtained every 4 days from the underside of the leaf (abaxial) on the upper middle and lower strata of the plant for one month. The total mean numbers of WF adults eggs and nymphs were significantly higher (p 0.05) on chilli in the monoculture experiment than on chilli in multiple crops experiment with okra tomato and brinjal. Results also showed that the population of WF adults and eggs were significantly higher in the upper stratum than in themiddle and lower plant strata. Interestingly the number of nymphs was higher in the middle stratum than in the other strata in all treatments. This phenomenon indicated that mixed crops can lower pest populations and indirectly reduce virus disease incidence.

[error in script]

Item Type:	Article
AGROVOC Term:	Bemisia tabaci
AGROVOC Term:	Vegetables
AGROVOC Term:	Glasshouses
AGROVOC Term:	Overpopulation
AGROVOC Term:	Chillies
AGROVOC Term:	Pests
AGROVOC Term:	Vigour
AGROVOC Term:	Geminiviruses
AGROVOC Term:	Quality
AGROVOC Term:	Capsicum annuum
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:29
URI:	http://webagris.upm.edu.my/id/eprint/24458

Actions (login required)

View Item