Introduction
Spinosad is a naturally derived insecticide known for its broad-spectrum efficacy and low toxicity to humans and animals. Extracted from Saccharopolyspora spinosa, a soil-dwelling bacterium, Spinosad represents the best of both biological control and chemical effectiveness—making it ideal for organic farming, integrated pest management (IPM), and livestock parasite control.
Spinosad is a fermentation-derived mixture primarily composed of spinosyn A and spinosyn D, which target the nervous system of insects, causing hyperexcitation and death through contact or ingestion.
Source: Saccharopolyspora spinosa
Mode of Action: Targets nicotinic acetylcholine and GABA receptors
Form: Liquid concentrate, granule, suspension concentrate (SC)
Broad-Spectrum Insect Control
Effective against leafminers, fruit flies, thrips, caterpillars, lice, fleas, and more
Works on both adult and larval stages
Environmentally Friendly
Degrades rapidly in sunlight and soil
Minimal impact on beneficial insects like bees (when applied correctly)
Low Mammalian Toxicity
Safe for humans, pets, and livestock
Commonly used in pet flea treatments and livestock feed additives
Organic Certified
Approved by OMRI and other organic regulatory bodies
Widely used in organic vegetable and fruit production
Resistance Management Tool
Unique mode of action reduces the risk of cross-resistance
Useful in rotational programs to slow resistance buildup
Sector | Application | Target Pests |
---|---|---|
Agriculture | Leaf sprays, soil drenches | Thrips, caterpillars, beetles |
Horticulture | Flower, greenhouse crops | Aphids, whiteflies, fungus gnats |
Livestock | Feed additive or spray | Lice, fleas, mites |
Companion Animals | Topical flea treatments | Adult fleas, flea larvae |
Public Health | Mosquito control programs | Larvae in standing water |
Spinosad affects insect nervous systems by activating nicotinic acetylcholine receptors and blocking GABA-gated ion channels. This dual mechanism causes:
Tremors
Paralysis
Rapid death (within 1–2 days)
Recommended Concentration: 0.1–0.5% depending on pest and crop
PHI (Pre-Harvest Interval): Typically 1–3 days
Compatibility: Can be tank-mixed with most fungicides and micronutrients
Application Methods: Foliar spray, soil drench, bait formulation
Toxicity to Non-Targets: Low (if used as directed)
Degradation: UV-sensitive, degrades in days
Storage: Keep sealed in cool, dry areas away from direct sunlight
Q: Is Spinosad safe for bees?
A: Yes, if applied during early morning or late evening when bees are inactive.
Q: Can I use Spinosad on fruit trees?
A: Absolutely. It is commonly used on apples, pears, citrus, and stone fruits.
Q: How often should Spinosad be applied?
A: Typically every 5–7 days for active infestations; adjust based on crop and pest pressure.
Spinosad is a standout choice for growers and producers seeking an eco-friendly, effective, and resistance-smart insecticide. Whether protecting fruits and vegetables in the field or controlling fleas on your pets, Spinosad delivers fast action with minimal environmental impact. Its versatility makes it a valuable tool in the future of sustainable pest management.