Orius insidiosus, commonly known as the Minute Pirate Bug, is a fast-moving, generalist predator widely used in greenhouses, nurseries, field crops, orchards, and indoor grow systems. Highly effective against thrips, especially adults, Orius also targets spider mites, aphids, whiteflies, and many other soft-bodied pests. With a rapid 3–4 week lifecycle, high mobility, and the ability to overwinter in suitable environments, Orius provides reliable, chemical-free pest suppression.
How It Works
Adult females lay eggs inside plant tissue, which hatch in 4–5 days. Nymphs develop into adults within 7–10 days, and both life stages feed aggressively on soft-bodied pests. Using piercing mouthparts (rostrum), Orius kills thrips, mites, and other insects—even when not actively feeding—making it a dependable control option in high-pressure infestations.
Targets These Pest Species
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Thrips (Frankliniella spp., Caliothrips fasciatus)
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Two-Spotted Spider Mites (Tetranychus urticae)
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Aphids (various species)
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Whiteflies (Trialeurodes vaporariorum, Bemisia tabaci)
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Mealybugs (Planococcus citri, Pseudococcus spp.)
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Leafhoppers (Empoasca spp., Circulifer tenellus)
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Caterpillar and moth eggs
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Alfalfa Weevil
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Armyworms
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Beetles (e.g., Mexican Bean Beetle, Asparagus Beetle)
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Cabbage Loopers and other lepidopteran pests
Ideal Conditions
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Temperature range: 64–82°F (18–28°C)
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Relative humidity around 60% RH
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Lifecycle duration: ~3–4 weeks
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Capable of overwintering in suitable environments
Application Instructions
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Release early morning or late afternoon to avoid strong light
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Gently rotate the bottle before opening to mix insects evenly in the carrier medium
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Tap contents gently across crop foliage (avoid direct application onto flowers)
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Keep bottle horizontal during application for even distribution
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Released Orius disperse quickly to locate pest hotspots
Release Rates
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Greenhouses (maintenance): 1–2 Orius per plant
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Hotspots or outdoor crops: 1–4 Orius per plant
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Heavy infestations (indoor/outdoor): Up to 500 Orius per 250 sq. ft.
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Field crops: 100–2,000 Orius per acre (depending on severity)
Where to Use
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Greenhouses
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Outdoor crops
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Orchards and vineyards
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Nurseries
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Indoor grow rooms
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Hydroponics and aquaponics
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Container plants and interiorscapes
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Environmental zones and pond-adjacent areas
Shipping & Storage
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Ships Tuesdays only; order by Wednesday for following week shipping
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Overnight shipping required
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Shipped in corn grit carrier for easy dispersion
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Store at 42–50°F in a cool, dark place (do not freeze or expose to sun)
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Use within 18 hours of arrival for best results
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Cannot ship to: HI, PR, VI, GU, AS, PW
Quick Tips
✔ Excellent for rapid thrips suppression
✔ Establish early in crop cycle for best long-term results
✔ Pairs well with predatory mites for complete foliar coverage
✔ Predation is visible—thrips can be seen skewered on the rostrum
✘ Avoid release in extreme heat or bright sunlight
