Bio Theeta Organic Pesticide (1% azadirachtin) is an emulsifiable concentrate that is effective in controlling a wide range of pests (sucking & chewing) of garden plants. Make a solution mixing 3 ml on the product in a liter of water and when used as recommended through a high-volume sprayer, this product controls pests effectively.
The product has unique modes of action that ensure sustained pest control and eradication from the area upon application.
It acts as an anti-fee dent and prevents the pest from feeding any further after spraying on the crop and it prevents the female insects from laying eggs and also has ovicidal effects.
The product also acts as an insect growth regulator and prevents molting of the larvae.
It also acts as a repellent against pests. Further, it also acts as a synergism along with chemical pesticides to increase the efficacy.
It has excellent UV stability on plants and its systemic activity and does not leave any residue.
Here's a discussion of the differences between azadirachtin-based and oil-based neem pesticides, how to differentiate them, and why oil-based neem pesticides might be less desirable:
Differences
Active Ingredient:
Azadirachtin-based:The primary active ingredient is azadirachtin, a compound extracted from neem seeds. Azadirachtin acts as an insect growth regulator, repellent, and antifeedant.
Oil-based:The primary active ingredient is raw neem oil. Neem oil acts primarily by smothering soft-bodied insects and can have some repellent effects.
Mode of Action:
Azadirachtin-based:Disrupts insect development, feeding, and reproduction. It is most effective against immature insects.
Oil-based:Works through physical contact, coating insects and their eggs, interfering with respiration and potentially disrupting feeding.
Label and Content Differentiation
Active Ingredient List: Check the label for the active ingredient. Azadirachtin-based products will list azadirachtin and its concentration explicitly. Oil-based products will usually say "neem oil" with a percentage, or refer to "clarified hydrophobic extract of neem oil".
Additional Information:
Azadirachtin-based products often list specific target pests and their life stages.
Oil-based products might be labeled more broadly as general insecticides or miticides.
Reasons to be Careful with Oil-Based Neem Pesticides
Phytotoxicity: Neem oil in its raw form can cause phytotoxicity (damage to plants), especially under these conditions:
High temperatures: The risk increases in hot weather.
Sensitive plants: Some plants are more susceptible.
Incorrect emulsification: If the oil is not mixed well with water, it can cause uneven application and burning.
Non-target Effects: While neem products are generally safer for beneficial insects than conventional pesticides, neem oil's smothering action can harm beneficial insects as well as pests if applied indiscriminately.
Variable Quality: Oil-based neem products have less standardization compared to those based on azadirachtin. Their effectiveness can vary based on the quality and concentration of the oil used.
Recommendations for Farmers
Prioritize Azadirachtin-Based Products: Due to less risk of plant damage and more targeted effects, these are generally a safer and more predictable choice.
Use Oil-Based Products with Caution: If using oil-based neem:
Choose products with clear instructions and specified concentrations.
Always test on a small area of the plant before wide application.
Apply in the cooler parts of the day.
Use proper emulsification techniques.
Avoid spraying on beneficial insects whenever possible.
Important Considerations:
Integrated Pest Management:Neem-based pesticides should be used as one tool within a broader integrated pest management (IPM) strategy that emphasizes prevention, monitoring, and using the least toxic methods first.
Always Read the Label:No matter the type of pesticide, the label is your most important source of information for safe and effective use.
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