Residues of Propargite in Tea
Journal Title: International Journal of Agricultural Science and Food Technology - Year 2015, Vol 1, Issue 1
Abstract
Propargite is an acaricide extensively used in India for controlling the populations of the red spider mite (RSM) infesting tea. Field experiments were conducted at two places in Tamil Nadu (India) during the dry season to determine the residues of propargite in black tea. Residues were quantified at different harvest intervals of ‘0’ (3 hr), 1st, 3rd, 5th, 7th, 10th and 14th day after acaricide application. Persistence, dissipation pattern, half-life value and safe harvest interval of the acaricide in tea were calculated. Residues of propargite dissipated exponentially after application at both the locations and reached below the CODEX MRL of 5 mg/kg on the 7th day. Regression lines drawn on propargite showed that like other acaricides it followed the first order dissipation kinetics. Half-life values varied from 1.63 to 1.92 days for propargite and a safety harvest interval of 7 days is suggested for the tea crop.
Authors and Affiliations
Seenivasan Subbiah, Dhanakodi Kirubakaran, Muraleedharan Narayanan Nair
Keywords
Related Articles
- EP ID EP323341
- DOI 10.17352/2455-815X.000004
- Views 119
- Downloads 0
A novel technique to retain more water in soil, use less water and enhance plant growth!!
At a Global scale, we are growing as much grain as possible to feed world population and domestic animals. As the world population grows in the coming decades, we may not have enough grain to feed the world population....
Botanical Extracts Used as Wine Preservatives
The aim of the study was to eliminate the potentially harmful sulfite salts normally added to wine – based products for preservation purposes with the introduction into the wine natural products, with pronounced antioxid...
Dissipation Behavior of Fenpyroximate Residues in Black Tea and Brew
Fenpyroximate is an effective acaricide on several food crops. In the present study, dissipation of residue of this acaricide in black tea, tea infusion and spent tea was studied. Analysis was carried out using high perf...
Diversity and Abundance of Ants (Hymenoptera: Formicidae) from Thiruthangal, Sivakasi (Taluk), Tamil Nadu
The present study deals with the diversity of ants in three different sites of Thiruthangal, Sivakasi Taluk, Virudhunagar (Dist.), India. During the present study four subfamilies are noted. Myrmicinae is a dominant subf...
Status of Food and Nutrition in the Arabian Gulf Countries
The Arabian Gulf countries are also known as the Gulf Cooperation Council (GCC) countries. They consist of six countries that are located in the Arabian Peninsula or connected to it. The GCC was formed in 1981 and includ...