Bromophos-ethyl
Active ingredient

Bromophos-ethyl

Description

Mode of action

Bromophos-ethyl is an organophosphate insecticide and acaricide that acts primarily through contact and ingestion. It is widely recognized for its ability to disrupt the nervous system of various agricultural pests.

The primary mode of action is the inhibition of the enzyme acetylcholinesterase. By blocking this enzyme, the chemical prevents the breakdown of acetylcholine in the synaptic cleft of the insect's nervous system.

This interruption leads to an overstimulation of the nerves, causing tremors, paralysis, and ultimately death of the target organism. Its contact activity ensures a rapid knockdown effect upon application.

The substance possesses moderate systemic properties, allowing it to penetrate the surface layers of plant tissues. This provides a residual protective effect that helps to control pests for a period after the initial treatment.

Environmental stability is a notable feature of this group, as Bromophos-ethyl maintains efficacy under various climatic conditions, including exposure to light and moderate temperature fluctuations in the field.

What it targets

Bromophos-ethyl is effective against a wide range of sucking and chewing insects. It is commonly utilized to manage populations of aphids, thrips, and spider mites on numerous vegetable and field crops.

The chemical also targets various lepidopteran larvae and beetle species that cause significant damage to foliage and fruits. It is an essential component in managing outbreaks of pests that threaten crop quality.

In addition to field applications, it is utilized for the protection of stored grain products. It acts against major warehouse pests, such as grain weevils and flour beetles, preventing storage losses in silos.

Farmers often rely on this active ingredient to quickly reduce pest pressure during peak infestation seasons. Its efficacy in controlling both larvae and adult stages makes it a versatile tool for crop protection.

Strategic timing of application is crucial for success. For optimal results, treatments should be carried out when pest populations reach an economic threshold but before they cause irreparable damage to the crop.

Restrictions

Safety is a priority when handling Bromophos-ethyl due to its toxicological profile. Operators must strictly adhere to the use of personal protective equipment, including respirators and skin protection, to prevent accidental exposure.

The chemical poses a significant risk to non-target organisms, particularly bees and beneficial predatory insects. Applications should never occur during the flowering stage of crops to avoid harming pollinators.

Pre-harvest intervals (PHI) must be meticulously observed to ensure that chemical residues in food products remain within safe, legally established limits. Compliance with these regulations is non-negotiable for food safety.

To mitigate the risk of resistance, it is advised to rotate Bromophos-ethyl with insecticides featuring different modes of action. Continuous, repetitive use on the same site can select for resistant pest populations.

Working solutions should be prepared immediately before application. Storing diluted solutions can lead to degradation of the active ingredient, thereby reducing the efficacy of the entire treatment program.

Regulatory

Status in the European Union

Not approved in the EU

CAS number
4824-78-6
Category (EU)
IN - Insecticide
ADI
0.003 mg/kg bw/day
Hazard classification (CLP)
Acute Tox. 3 - H301Acute Tox. 4 - H312Aquatic Acute 1 - H400Aquatic Chronic 1 - H410
EU legislation

EU status is for reference only and does not replace national registration in your country.