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Chemical Control of Houndstongue <br />Picloram at 0.25-0.5 lb., 2,4 -E) or dicamha at 1 0 lb , or mctsutfuron at 0.6 o,. ai acre applied in spring provides conrol <br />of houndstongue Sprung treatments with pocloram. dicamha. or mctsulfuro n are more effective than fall treatments. <br />('hlor.ufurun applied (1 5 Ili. ai/ac gave complete control when applied any time beginning with the rosette stage until <br />the bolted plant had attained 10 inches in height <br />Hoary cress (White Top) <br />MANA(;F ;MF :NT <br />I Ioary cress is typically tound on generally open, unshaded, disturbed ground. (ioary cress grows well on alkaline soils <br />that are wet in late spring and generally does better in areas with moderate amounts of rainfall It is widespread in <br />fields. waste places. meadows, pastures, croplands, and along roadsides. Iloan cress is commonly found with saltcedar. <br />antelope bitterush, hluebunch wheatgrass, big sagebrush, and Wyoming big sagehnish. floary cress flowers from May <br />it) .lunc. are self - incompatible. and are pollinated by insects Hoary cress w ill set seed M mid - summer It conditions <br />art- favorable, a second crop of seeds can be produced in the tall Hoary cress spreads by creeping roots and by seeding <br />Mechanical Control of Hoary cress <br />Mowing 2- 4 times a year for several years may slow the spread and reduce seed production of hoary cress. Mowing <br />may increase the effectiveness of subsequent herbicide application. Mowing should be conducted during the bud stage <br />and repeated when the plants re -bud. the effectiveness of a mowing program can be increased by planting perennial <br />grasses as competitors <br />Burn Control of Hoary cress <br />Burn control is not recommended since Hoary cress has a rapid growth rate when compared to non noxious weeds. <br />