
Thrips
Frankliniella Occidentalis
Pathogen:
Type:
Insect
Risk:
HIGH

Pimiento
Trips

WHO CAUSES IT?
Frankliniella occidentalis, commonly known as western flower thrips, is a small insect that affects a wide range of crops, including pepper. Adults are winged and measure approximately 1 mm in length. Its life cycle begins with the laying of eggs in plant tissues, which hatch in a few days. The larvae go through two larval stages feeding on the host plant before falling to the ground to enter a pupal phase. This phase lasts between 1 and 2 weeks, depending on environmental conditions. Adults emerge and look for new plants to continue the cycle, with multiple generations throughout the year, especially in hot, dry climates. The reproductive capacity of F. occidentalis is high, and its rapid development allows populations to grow explosively under favorable conditions. Additionally, thrips can survive in a variety of conditions and in different parts of the plant, making their control complicated.
SYMPTOMS
In pepper, Frankliniella occidentalis causes a disease known as thrips that significantly affects the quality and quantity of production. Damage is mainly caused by feeding by thrips, which scrape the surface of leaves, flowers and fruits to suck cellular juices. This direct mechanical damage causes discoloration, scarring and malformations in the affected parts. Affected leaves and fruits may show silver or white Taches due to the destruction of surface cells. The presence of thrips also encourages the growth of saprophytic fungi and can transmit harmful viruses to plants.
Silver or white Taches on leaves and fruits
Scars and malformations in the affected parts
Discoloration of leaves and fruits
Loss of vigor in plants
Reduction in the quality and quantity of production
Transmission of plant viruses



TEMPERATURE AND HUMIDITY
20°C - 30°C
40% - 70%
TRANSMISSION ROUTES
Wind, Direct contact with infected plants, Contaminated cultivation tools, Insect vectors
Do you want to remove this disease? Choose how you want to treat it.
TREATMENTS
Chemical treatments
• ORANGE OIL 6% [SL] P/V
• ORANGE OIL 60g/L [ME] P/S
• PARAFFIN OIL (CAS [8042-47-5]) 54.6% [EW] P/V
• AZADIRACTIN 1% (AS AZADIRACTIN A) [EC] P/V
• Azadirachtin 2.6% (AS AZADIRACTIN A) [EC] P/V
• CYANTRANILIPROL 10% + ACIBENZOLAR-S-METHYL 1.25% [SC] P/V
• CYANTRANILIPROL 20% [SC] P/V
• DELTAMETHRIN 1.5% [EW] P/V
• DELTAMETHRIN 1.57% [SC] P/V
• DELTAMETHRIN 10% [EC] P/V
• DELTAMETHRIN 2.5% [EC] P/V
• DELTAMETHRIN 2.5% [EW] P/V
• LAMBDA CYHALOTHRIN 0.0015% [ME] P/V
• LAMBDA CYHALOTHRIN 1.5% [CS] P/V
• LAMBDA CYHALOTHRIN 10% [CS] P/V
• PYRETHRINS 1.9% [EC] P/V
• PYRETHRINS 4.65% (as pyrethrum extract) [EC] P/V
• PYRETHRINS 4% (PYRETHHRINE EXTR.) [EC] P/V
• POTASSIUM SALTS OF FATTY ACIDS C14-C20 48% [EW] P/V
• POTASSIUM SALTS OF VEGETABLE FATTY ACIDS 13.04% [SL] P/V
• SPINETORAM 2.5% [SC] P/V
• SPINOSAD 12% [SC] P/V
• SPINOSAD 2.4% [SC] P/V
• SPINOSAD 48% [SC] P/V
• SPIROTETRAMAT 15% [OD] P/V
Treatments allowed in organic farming
• ORANGE OIL 6% [SL] P/V
• ORANGE OIL 60g/L [ME] P/S
• PARAFFIN OIL (CAS [8042-47-5]) 54.6% [EW] P/V
• AZADIRACTIN 1% (AS AZADIRACTIN A) [EC] P/V
• Azadirachtin 2.6% (AS AZADIRACTIN A) [EC] P/V
• LAMBDA CYHALOTHRIN 0.0015% [ME] P/V
• LAMBDA CYHALOTHRIN 1.5% [CS] P/V
• LAMBDA CYHALOTHRIN 10% [CS] P/V
• PYRETHRINS 1.9% [EC] P/V
• PYRETHRINS 4.65% (as pyrethrum extract) [EC] P/V
• PYRETHRINS 4% (PYRETHHRINE EXTR.) [EC] P/V
• POTASSIUM SALTS OF FATTY ACIDS C14-C20 48% [EW] P/V
• POTASSIUM SALTS OF VEGETABLE FATTY ACIDS 13.04% [SL] P/V
• SPINOSAD 12% [SC] P/V
• SPINOSAD 2.4% [SC] P/V
• SPINOSAD 48% [SC] P/V
Biological treatments
• BEAUVERIA BASSIANA (STRAIN ATCC 74040) 2.3% (2.3X10E7 VIABLE SPORES/ML) [OD] P/V
• BEAUVERIA BASSIANA (GHA STRAIN) 22% (4.4 x 10E10 CONIDIAS/G) [WP] P/P
• BEAUVERIA BASSIANA strain PPRI 5339 8% (8 X 10E12 CFU/L) [OD] P/P
• METARHIZIUM BRUNNEUM strain Ma 43 10.5% [OD] P/V
• PAECILOMYCES FUMOSOROSEUS (STRAIN FE 9901) 18% (2 X 10 E9 CFU/G) [WP] P/P
• STEINERNEMA FELTIAE (Parasitoid and predatory nematodes)
• CHRYSOPERLA CARNEA (Parasitoid and predatory insects)
• HETERORHABDITIS BACTERIOPHORA (Parasitoid and predatory nematodes)
• AMBLYDROMALUS LIMONICUS (Parasitoid and predatory mites)
• MACROCHELES ROBUSTULUS (Parasitoid and predatory mites)
• MACROLOPHUS PYGMAEUS (Parasitoid and predatory insects)
• TRANSEIUS MONTDORIENSIS (Parasitoid and predatory mites)
• AMBLYSEIUS SWIRSKII (Parasitoid and predatory mites)
• NEOSEIULUS CUCUMERIS (Parasitoid and predatory mites)
• ORIUS LAEVIGATUS (Parasitoid and predatory insects)
Recommendations
Use thrips-resistant pepper varieties.
Implement physical barriers such as anti-insect mesh to prevent the entry of thrips into the greenhouses.
Maintain adequate hygiene in the crop, eliminating plant remains and weeds that may harbor thrips.
Introduce natural enemies of thrips, such as predatory mites and parasitoid wasps, for biological control.
Use blue sticky traps to monitor and reduce thrips populations.
Apply horticultural oils and insecticidal soaps as preventive measures.
Make insecticide applications strategically, rotating products to avoid the development of resistance.
Regularly monitor the crop to detect the presence of thrips and act quickly at the first signs of infestation.
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*The recommended treatments are recommendations based on the authorities' databases and in no way replace the guidelines established by the legislation of each country.
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TREATMENTS
Homemade remedies
There are no home treatments
Natural allies
Chemical treatments
There are no treatments for this disease. Treatments are directed at the insect vectors that transmit it. See insect treatments.
RECOMMENDATIONS
REPELLENT PLANTS


















