Studies on weed management in maize (Zea mays L.) through pre and post-emergent weedicides

A field experiment was conducted on effect of weed management in maize (Zea mays L) through pre and post-emergent herbicides at Main Agricultural Research Station, UAS, Raichur during kharif, 2024 in vertisol. The experiment was laid out in a randomized complete block design with three replications and thirteen treatments. The results of the experiment revelaled that among the herbicidal treatments, application of pyroxasulfone 85% WG @ 255 g a.i. ha-1 as PE fb tembotrione 34.4% SC @ 48 g a.i. ha-1 as POE had resulted in lower density and dry matter of all categories of weeds, higher weed control efficiency, higher grain yield and lower weed index, which was statistically on par with application of pyroxasulfone 85% WG @ 170 g a.i. ha-1 as PE fb tembotrione 34.4% SC @ 48 g a.i. ha-1 as POE and pyroxasulfone 85% WG @ 127.5 g a.i. ha-1 as PE fb tembotrione 34.4% SC @ 48 g a.i. ha-1 as POE. However, Weedy check recorded significantly higher weed density, weed dry weight and weed index. Hence, pyroxasulfone 85% WG @ 127.5 g a.i. ha-1 as PE fb tembotrione 34.4% SC @ 48 g a.i. ha-1 as POE could be used as an effective weed management practice in maize.