Overview
Derris extract powder is a natural insecticide derived from the roots of plants belonging to the Derris genus, primarily Derris elliptica and Derris malaccensis. The active ingredient, rotenone, is a potent insecticidal compound that disrupts cellular respiration in pests. Historically used by indigenous communities, it gained popularity in organic farming due to its biodegradability and minimal impact on non-target species when used correctly. In modern agriculture, derris extract powder is valued as an eco-friendly alternative to synthetic pesticides. It is particularly effective against leaf-eating insects, aphids, and beetles. However, its use is regulated in some regions due to its toxicity to aquatic life. Proper application and dosage are critical to maximizing efficacy while minimizing environmental impact.
Physical and Chemical Properties
Derris extract powder appears as a light brown to white crystalline powder with a faint, earthy odor. Its primary component, rotenone, has a molecular formula of C23H22O6 and a molecular weight of 394.42 g/mol. The compound melts at 165-166°C and is soluble in organic solvents like acetone and chloroform but only slightly soluble in water. Rotenone is stable under normal storage conditions but degrades when exposed to sunlight or alkaline environments. Its insecticidal properties stem from its ability to inhibit mitochondrial electron transport, leading to cellular energy depletion in pests. Despite its potency, rotenone breaks down relatively quickly in the environment, reducing long-term ecological risks compared to synthetic alternatives.
Main Applications
Derris extract powder is widely used in organic farming to control pests such as caterpillars, beetles, and aphids. It is applied as a foliar spray or dust, targeting crops like vegetables, fruits, and ornamental plants. Its selective toxicity makes it suitable for integrated pest management (IPM) systems, where minimizing harm to beneficial insects is a priority. In aquaculture, derris extract is occasionally used to eliminate unwanted fish species in ponds, though this practice is heavily regulated due to its high toxicity to aquatic organisms. Additionally, it serves as a research tool in neuroscience studies for inducing Parkinson's-like symptoms in animal models, leveraging its ability to inhibit mitochondrial function.
Safety and Storage
While derris extract powder is less toxic to mammals than synthetic pesticides, precautions are necessary to avoid inhalation or skin contact, which can cause irritation or systemic effects. Workers handling the powder should wear protective gear, including gloves, masks, and goggles. It is highly toxic to fish and aquatic invertebrates, so applications near water bodies must be carefully controlled. Storage requires a cool, dry environment away from direct sunlight and moisture to prevent degradation. Containers should be tightly sealed and labeled clearly. Disposal must comply with local regulations, as improper handling can contaminate water sources. Always refer to the material safety data sheet (MSDS) for specific guidelines.
B2B Procurement Guide
When sourcing derris extract powder, prioritize suppliers with certifications for organic or natural products. Key specifications include rotenone content (typically 95-98%), absence of synthetic contaminants, and compliance with regional agricultural regulations. Request third-party lab test reports to verify purity and potency. Bulk purchases often attract discounts, but ensure proper storage facilities are available to maintain product integrity. Consider suppliers with a track record in sustainable sourcing, as overharvesting of Derris plants can deplete natural resources. For international shipments, confirm compliance with import/export restrictions, particularly regarding rotenone's classification as a controlled substance in some countries.
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