Persistence of Thiacloprid (cas 111388-49-9) and deltamethrin residues in tea grown at different locations of North-East India

Add time:09/04/2019    Source:sciencedirect.com

In order to examine the residues of Thiacloprid (cas 111388-49-9) (90 and 180 g a.i./ha) and deltamethrin (10 and 20 g a.i./ha) in fresh tea leaves, made tea and tea infusion, field experiments were conducted at three different locations viz. Kamalpur tea estate, Darjeeling; West Bengal, Teok tea Estate and AAU, Jorhat; Assam in India. Regardless of location and doses, residues of both the insecticides dissipated following first order kinetics. The half-life of Thiacloprid (4.93–5.38 days) was longer than that of deltamethrin (1.78–1.94 days). Processing of green tea leaves reduced the residue level of thiacloprid and deltamethrin in made tea. No residues of both these insecticides could be detected in tea infusion. With respect to the phenolic distribution in tea, a marked increase in total catechin monomers with thiacloprid and greater accumulation of EGCG and ECG (indices of phenol quality) with deltamethrin were observed.

We also recommend Trading Suppliers and Manufacturers of Thiacloprid (cas 111388-49-9). Pls Click Website Link as below: cas 111388-49-9 suppliers

Prev:Novel WO3/Fe3O4 magnetic photocatalysts: Preparation, characterization and Thiacloprid (cas 111388-49-9) photodegradation
Next:Mechanistic study on Thiacloprid (cas 111388-49-9) transformation: Free radical reactions)