What Is Kelthane?
Kelthane, an organochlorine compound (C14H9Cl5O), known chemically as 2,2,2-trichloro-1,1-bis(4-chlorophenyl) ethanol or dicofol, is a pesticide ingredient formerly used in various formulations. As a non-systemic acaricide, it targeted mites on a broad range of crops including vegetables like tomatoes and cucumbers, as well as fruit trees and ornamental plants.
Despite not being classified as toxic or deleterious, concerns over its persistence, and environmental and hormonal effects have led to restrictions and the establishment of residue standards in several countries. However, its registration as a pesticide has not been renewed, reflecting increasing regulatory and environmental scrutiny.
Uses of Kelthane
Kelthane’s primary role was combating spider mites, pests notorious for their small size, high fertility, and damage to plant foliage and fruits. Effective across various developmental stages of the mites, kelthane’s action mechanism involved inhibiting acetylcholinesterase, leading to excessive accumulation of acetylcholine and abnormal nerve cell activity, resulting in pest control.
Types of Kelthane
Different formulations of kelthane were available:
1. Kelthane Powder
A powder form intended for direct soil application, with caution advised on windy days to prevent dispersal.
2. Kelthane Hydrate
A water-soluble powder form, used for spraying on crops. It’s characterized by its tendency to precipitate upon standing when mixed with water.
3. Kelthane Emulsion
A liquid form that is mixed with water and sprayed on crops, noted for its low foaming and ease of application.
Other Information on Kelthane
Precautions for Use
- Safety precautions include wearing gloves, masks, and protective eyewear due to risks of acute toxicity and eye damage.
- The compound is flammable and can emit harmful fumes if ignited; hence, caution is advised near fire sources.
- Storage should be in tightly sealed containers in well-ventilated areas.
- Disposal of kelthane requires professional waste management services to prevent environmental contamination.