Observations on the damage and control of melon flies (Dacus cucurbitae Coq uillet) infesting musk melons Cucumis melo; Peninsular Malaysia

Vijaysegaran S., . Observations on the damage and control of melon flies (Dacus cucurbitae Coq uillet) infesting musk melons Cucumis melo; Peninsular Malaysia. pp. 37-44. ISSN 0127-7944

The melon fly Dacus cucurbitae Coquillet caused extensive damage to two varieties of musk melons grown under two systems of hydroponics viz. Aggregate and Nutrient Film Technique (NFT). Fleshy parts of the plant such as the primary secondary and tertiary stems petioles young shoots and fruits were oviposited in. Primary stems and fruits suffered the greatest damage. Damage to the stems resulted in loss of valuable flowering parts or death of the entire plant. Larvae infesting the stems and fruits successfully completed development to adult flies. Spot sprays of protein baits (0.2 a.i. Staley's Protein Insecticide Bait No. 7 0.2 a.i. malathion e.c.) significantly reduced damage to the melon plants but 100 control was not achieved. Such bait sprays reduced damage by 72.9 in the NFT area and 90.6 in the aggregate area. When applied at concentrations of 0.8 a.i. and above PIB-7 was phytotoxic to both varieties of musk melons. Application of spot sprays of protein baits did not interfere with pollinator activity

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Abstract

The melon fly Dacus cucurbitae Coquillet caused extensive damage to two varieties of musk melons grown under two systems of hydroponics viz. Aggregate and Nutrient Film Technique (NFT). Fleshy parts of the plant such as the primary secondary and tertiary stems petioles young shoots and fruits were oviposited in. Primary stems and fruits suffered the greatest damage. Damage to the stems resulted in loss of valuable flowering parts or death of the entire plant. Larvae infesting the stems and fruits successfully completed development to adult flies. Spot sprays of protein baits (0.2 a.i. Staley's Protein Insecticide Bait No. 7 0.2 a.i. malathion e.c.) significantly reduced damage to the melon plants but 100 control was not achieved. Such bait sprays reduced damage by 72.9 in the NFT area and 90.6 in the aggregate area. When applied at concentrations of 0.8 a.i. and above PIB-7 was phytotoxic to both varieties of musk melons. Application of spot sprays of protein baits did not interfere with pollinator activity

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Item Type:	Article
Additional Information:	5 tables. Summaries (En Malay)
AGROVOC Term:	CUCUMIS MELO
AGROVOC Term:	DACUS
AGROVOC Term:	INSECTOS DANINOS
AGROVOC Term:	MALASIA PENINSULAR/ CONTROL QUIMICO
AGROVOC Term:	CULTIVO HIDROPONICO
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:53
URI:	http://webagris.upm.edu.my/id/eprint/18692

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