Recent monitoring by specialists from the Federal State Budgetary Institution “Central Agricultural Quality Control Center” (FSBI “COC APK”) in Tatarstan has confirmed an alarming infestation of the Western Flower Thrips (Frankliniella occidentalis) in a local greenhouse. During routine entomological inspections, viable thrips specimens were found in 35 out of 92 adhesive traps, highlighting a significant infestation.
Why This Pest Is Dangerous
The Western Flower Thrips is a polyphagous pest, meaning it attacks a wide range of crops, including:
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Vegetables: cucumbers, tomatoes, peppers
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Fruits: strawberries, grapes
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Ornamentals: roses, gerberas
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Industrial crops: cotton
Both adults and larvae feed on plant tissue and pollen, leading to:
✔ Leaf wilting and drop
✔ Stem deformities
✔ Fruit malformation
✔ Necrotic spots
Under greenhouse conditions, the pest thrives, multiplying rapidly and causing yield losses of up to 50-80% in severe cases (EPPO, 2023).
Global Spread and Economic Impact
Originally from North America, this invasive species has spread across Europe and Asia, becoming a major concern for protected cultivation. According to FAO (2024), thrips-related crop damage results in over $1 billion in annual losses worldwide.
Detection and Control Strategies
Early detection is critical. The use of blue sticky traps and regular plant inspections can help monitor infestations. Effective control measures include:
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Biological agents: Predatory mites (Amblyseius cucumeris) and parasitic wasps (Ceranisus spp.)
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Chemical treatments: Spinosad, abamectin (rotating modes of action to prevent resistance)
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Cultural practices: Removing weeds, disinfecting tools, and quarantining new plants
Act Now to Prevent Spread
The detection of Western Flower Thrips in Tatarstan underscores the need for vigilance and integrated pest management (IPM). Farmers and greenhouse operators must adopt preventive measures and collaborate with agricultural experts to mitigate risks. Failure to act could lead to devastating economic losses and trade restrictions.
