Selective control of perennial grasses in Kentucky bluegrass (Poa pratensis L.) turf with chlorsulfuron

The use of fenarimol and chlorsulfuron for selective control of annual bluegrass (Poa annua L.) in cool-season turfs

“…In the second cotmt, plant numbers ranged from 11.2 at the control level to 1.1 at the highest treatment level. These results indicate that ~rennial rye is very sensitive to chlorsulfuron Maloy (1985). also observed control of ~rennial rye in the greenhouse using chlorsulfuron.…”

“…ha-l and above. In greenhouse studies at Iowa State University Maloy (1985) tested the selectivity of seven cool-season turfgrass SI,:ecies to chlorsulfuron applied at rates of 140 and 280 g a. i. ha-l. Results showed creeping bentgrass, fine fescue, quackgrass, and branegrass to be tolerant of the chlorsulfuron treatments.…”

“…State University (Maloy, 1985) • Ollorsulfuron is a relatively new selective herbicide used to control a large spectrllll of both broadleaf and annual grass weeds in cereal crops. Formerly known as DPX-1489, it is 10 to 100 times more active than most herbicides (Palm, 1982) The objectives of this study were to (1) investigate the use of chlorsulfuron and fenarirnol as selective controls of annual bluegrass;…”