Specimen 4
IDENTIFYING FEATURES
- Adults have wings covered in tiny scales. Scales are specially modified flattened hairs.
- Body is divided into 3 sections: Head, thorax & abdomen.4 wings,6 legs are attached to thorax.
- Head bears antenna.
- Proboscis is a specialized tube formed by modification of the mouthparts.
- Wings consist of an upper & lower membrane supported by a system of hollow veins.
- Larvae moult several times, usually 4,5,6 depending upon the species.
- Hence the specimen belongs to the Order: Lepidoptera
- Adult is about 20 mm across the wingspan.
- Adult moth is whitish in colour with pink-brown marks on the wings.
- The apical & anal margins of the wings are provided with small hairs.
-Hence the specimen seems to be Leucinodes orbonalis
Systematic position:(Ruppert & Barnes ,1994)
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Sub Class: Pterygota
Order: Lepidoptera
Superfamily: Pyraloidea
Family: Crambidae
Economic Importance:
Leucinodes orbonalis (eggplant/ brinjal shoot and fruit borer) is the most damaging pest of eggplant (brinjal) in Asia and other tropical regions.
Larval feeding causes severe damage to both shoots and fruits, resulting in wilting, fruit drop, and reduced marketable yield; even slightly damaged fruits are unfit for sale and consumption.
Infestation can lead to yield losses ranging from 20% to 70% or higher in outbreak situations, causing major economic hardship for smallholder and commercial farmers.
Increased infestation translates to higher production costs due to greater need for pest management interventions and lower returns to farmers.
The pest is now recognized as a quarantine threat, with interceptions reported in EU markets and risk of establishment in suitable climates outside its native range.
Integrated pest management (IPM)—including sex pheromones, biological agents, mechanical control, botanicals, and safe chemical pesticides—is vital to minimize economic losses and ensure sustainable production.
Proper management of L. orbonalis is essential for maintaining eggplant supply, market quality, and farmer income in affected regions.
No comments:
Post a Comment