Work

Contribution of leaf growth on the disappearance of fungicides used on tea under south Indian agroclimatic conditions

Year: 2009

Type: article

Abstract: The sprayed chemicals on tea leaves disappear over a period of time by the influence of rainfall elution, evaporation, growth dilution, and photodegradation. Influence of plant growth on the four fungicides (hexaconazole, propiconazole, tridemorph, and c) was studied to know the constructive loss of fungicides. The study shows that residues of fungicides sprayed on tea shoots got diluted by the growing process. The expansion of a leaf took 8 to 11 d and more than 50% of the fungicide residues were cleaned out during this leaf expansion period. Under south Indian agroclimatic condition, the fungicides are sprayed at an interval of 10 d, so it is safe that the tea is harvested on the 10th day of the application of fungicides.

Source: Journal of Zhejiang University SCIENCE B

DOI: 10.1631/jzus.b0920026

Authors: Chinnachamy Karthika, Narayanan Nair Muraleedharan

Institution: UPASI Tea Research Foundation

Language: English

Topic: Pesticide Residue Analysis and Safety

Subfield: Food Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: bronze

OpenAlex ID: W2006040429