Remarkable Knockdown Effect:
Bayer Decis 100 (Deltamethrin 11% EC) demonstrates a notable knockdown effect, indicating its ability to quickly incapacitate or eliminate targeted insects upon contact. 
Residual Activity:
Deltamethrin exhibits good residual activity due to specific physico-chemical properties.
Solubility in fatty tissues facilitates penetration into the cuticle of leaves.
Very low solubility in water provides excellent rain fastness, ensuring sustained effectiveness even after exposure to rainfall.
Very low vapor pressure contributes to resistance against evaporation, maintaining prolonged activity.
Pure Isomer Advantage:
Being the most effective synthetic pyrethroid because of a single pure isomer enhances its potency and specificity in targeting pests.
Repellent Action and Anti-Feeding Properties:
Deltamethrin not only acts on direct contact but also demonstrates repellent action, deterring insects, and anti-feeding properties, reducing the attractiveness of treated plants to pests.
Contact, Non-Systemic Nature:
Deltamethrin is characterized as a contact, non-systemic insecticide, meaning it needs direct contact with the pest for effectiveness.
Adequate spray volume is emphasized to ensure good coverage on target plants and insects, maximizing the insecticide's efficacy.