Page 136 - Feed Lab

Suguna Management System Ver 1.0 / SOP / FQL / P3 - 01 Page 1 of 1

1. Determination of Thiram

chloroform and shake well for 5 -10 minutes.
PRINCIPLE
(Picture -1)
FThiram is a type of sulfur fungicide. It has been
found to dissolve completely in chloroform, Filter through Whatman filter paper No.1. A pinch of
acetone and ether. charcoal can be added to filtrate, shake for few minutes
and filter to remove natural colour if any. (Picture - 2)
FIt is available as dust, flowable, wettable powder,
water dispersible granules, and water suspension Add few crystals of cuprous iodide to the filtrate
formulations and in mixtures with other fungicides. solution and shake well. ( Picture - 3)

FThiram is a fungicide with a preventive activity and a A presence of amber of brown colour is an indication of
broad spectrum of action, well-tolerated by crops presence of thiram in given sample. (Picture - 4)
and seeds.
FThiram is also widely used as a seed dressing on a
wide range of crops where it provides good control
of damping-off, seed and bulb decay, seed rot,
seedling blights, and many other soil and seed-
borne diseases. It exhibits a useful repellent action
against birds, rodents and game

REAGENTS
Picture - 1 Picture - 2
FChloroform
FWhatman filter paper No.1

F250ml conical flask

Fcharcoal
FCuprous iodide

PROCEDURE
Take 100g of sample in 250ml conical flask. Add 50ml Picture - 3 Picture - 4

Prepared by : Approved by :
122 Director - Technical