The experiment was laid out on a range patch on the farm of Central Sheep & ·Wool Research Institue, Avikanagar (Rajasthan), with an object to study the response of four herbicidal preparations (Phytar-560, Bladex 'c', spontox and

Ansar-529) with three rates (low, medium and high) and two (single or double spraying) frequencies of application, on Artemisia vulgaris. The following conclusions could be drawn:-

1. Growth in height, vigour and seed yield was greatly reduced with the application of 'phytar-560' and 'spontox'.

2. Regeneration of plants was much lowered by harmone herbicides viz. 'spontox' and 'Bladex-c'.

3. 'Ansar-529' was not suitable herbicide to control A. vulgaris, however, the treated plants had seeds of low germination capacity.

4. Medium and high doses responded satisfactorily. 5. Application for the second time (at half rate of the first) was beneficial rather than first single application.