BI-2

Technical Profile of «BI-2» Plant Protection Product

The insecticide and acaricide «BI-2», produced by Yangzhou Pioneer Chemical Co. Ltd., is based on dimethoate, a robust organophosphate compound. Formulated as an emulsifiable concentrate (EC), it serves as a powerful solution for controlling key pests in winter wheat, including cereal leaf beetles (Oulema melanopus), cereal flies, aphids, and thrips.

Mechanism of Action and Physiological Impact

The product's efficacy lies in its dual-action capability: systemic and contact. By utilizing these properties, the active ingredient ensures comprehensive protection of the crop.

• Contact Action: Delivers a rapid «knockdown effect». Upon direct contact with the pesticide spray, dimethoate inhibits acetylcholinesterase, leading to paralysis and quick mortality of the targeted insects.
• Systemic Action: Once applied, the product is absorbed into the plant’s vascular system and translocated acropetally. This renders the plant tissue toxic to sap-sucking pests like aphids and thrips, providing protection to new foliage that develops after the initial application.

Field Application Guidelines

The EC formulation ensures the creation of a stable spray solution, which is essential for uniform coverage of the crop canopy. The systemic nature of dimethoate is particularly advantageous for reaching hidden pests, such as cereal fly larvae, that inhabit plant tissues. Given the 2nd class hazard rating, strict adherence to application safety protocols and the use of personal protective equipment are mandatory. Temperature management is crucial for optimal results; application should ideally be scheduled during cooler morning or evening hours to maximize the uptake efficiency of the active ingredient and prevent degradation under extreme heat. As a proven solution in the APK-Service portfolio, «BI-2» remains a go-to tool for integrated pest management in intensive cereal farming.