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News 2025-11-27

Guarding Orchards with Green Technology: Precision Control of Brown-Winged Green Bug and Medfly via Pheromones Introduction


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In the face of growing threats from fruit pests, the traditional over-reliance on chemical pesticides is proving unsustainable. Innovative pheromone-based control technologies now offer fruit growers worldwide a highly effective and eco-friendly alternative. This article explores how this precise strategy can successfully manage two key pests: the Brown-winged green bug and the Mediterranean fruit fly.

Understanding the Invisible Orchard Foes

Brown-winged Green Bug: This sap-sucking pest directly attacks fruits like apples, pears, and citrus, causing deformities and quality degradation, leading to significant economic loss.

Mediterranean Fruit Fly (Medfly): As a premier global quarantine pest, its larvae tunnel inside fruits, causing rot and drop, posing a severe threat to the fruit industry.

Precision in Action: Pheromone Technology Case Studies
Pheromone technology acts like a "precision guidance system" for pest management, using insects' own chemical language against them for highly efficient control.

Case Ⅰ: Disrupting Green Bug Aggregation

By synthesizing and deploying the aggregation pheromone of the Brown-winged green bug—Methyl (2E,4E,6Z)-deca-2,4,6-trienoate—we can set "chemical traps" in orchards. Field applications demonstrate that combining this pheromone with plant-based substances like mustard oils significantly enhances trapping efficacy and controls the adult population.

Case Ⅱ: : Interfering with Medfly Mating Signals

Trimedlure, a highly effective synthetic attractant, specifically lures male Medflies. This technology is central to global control programs, notably playing a key role in quarantine efforts such as those in California. The latest strategies show that combining Trimedlure with natural oils like methyl eugenol can multiply capture rates.

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Building a Green Defense: Integrated Pest Management (IPM)

Incorporating pheromones into an IPM framework creates a multi-layered defense system for orchards:

Ⅰ. Real-Time Monitoring & Early Warning: Strategically placed pheromone traps act as "sentries," providing real-time pest data and enabling precise forecasting.

Ⅱ. Mating Disruption & Mass Trapping: Area-wide pheromone release confuses males, preventing them from finding females and suppressing reproduction. Meanwhile, traps directly reduce the adult population.

Core Benefits for Growers

Eco-Friendly: High species specificity targets only the pest, safeguarding pollinators and beneficial insects, and maintaining ecological balance.

Reduced Chemical Reliance & Enhanced Efficiency: Can lead to a 30%-60% reduction in pesticide use, lowering costs and residue risks while improving fruit quality and marketability.

Market Access: Producing safer fruit helps meet stringent residue standards for premium and export markets.

Conclusion
Adopting pheromone technology is a strategic step towards intelligent and sustainable orchard management. By implementing these targeted solutions against the Brown-winged green bug and Medfly, growers can not only protect their yields but also champion environmental stewardship and secure a more profitable future.



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