. Cranberries; : the national cranberry magazine. Cranberries. Control of Certain Resistant Weeds In Cranberries With Fydulan By AZMI Y. SHAWA INTRODUCTION Cranberry is a low-growing, trailing, woody, evergreen plant of the Ericaceae family. The root system consists of a mass of fine, fibrous roots con- fined chiefly to the upper 10 to 15 cm of soil (1). Cranberry bog soils are acid in nature and either very high or very low in organic matter. Soil organic matter can absorb certain herbicides, with a reduction in weed control poten- tial. High rates of herbicides may cause vine injury when app
. Cranberries; : the national cranberry magazine. Cranberries. Control of Certain Resistant Weeds In Cranberries With Fydulan By AZMI Y. SHAWA INTRODUCTION Cranberry is a low-growing, trailing, woody, evergreen plant of the Ericaceae family. The root system consists of a mass of fine, fibrous roots con- fined chiefly to the upper 10 to 15 cm of soil (1). Cranberry bog soils are acid in nature and either very high or very low in organic matter. Soil organic matter can absorb certain herbicides, with a reduction in weed control poten- tial. High rates of herbicides may cause vine injury when applied to soils at either extreme of organic matter content. The intertwin- ing of vines over the bog surface precludes soil incorporation of herbicides other than by irriga- tion and percolation of solution into the soil (5). Herbicides presently registered for use in cranberries do not adequately control certain resis- tant weeds such as dogwood and seashore saltgrass (6). Previous impublished work with the highest allowed amounts of dichlobenil, dalapon, and their combination Pump Repairs All Types SALES Field Service & Shop 20 Years Experience AAA INDUSTRIAL PUMP SERVICE INC. 66 Lake Street Plympton MA 02367 Bruce Sunnerberg (617)585-2394 10 on all resistant weeds, including dogwood and saltgrass, showed no effective control of these weeds without injuring cranberry vines. MATERIALS AND METHODS The purpose of this study was to determine the effect of fydu- lan G on dogwood, seashoi saltgrass, and cranberry vine Fydulan G is unique in that bol active ingredients are uniform^ distributed throughout eac particle, not just attached to tl surface of the granule. Treatmem were applied to a section 'McFarlin' cranberry bog th was infested with dogwood ay Froc 9'/,9S 9 3 10 Itrj lOJ 103 FrOCV/.m 13 99'^ 99'/, 99'/,- H 10 94V. 9441, 94V. .f IH FrtK Pttt 7 9 40 100 99% 100 FrdC 7I5SU 7 9 U in 99% 100 « % FrOC tM/n 11 10 94'/, 94'/^ 94'/,i. ]V. FrdC I'/iO} 10} 9« 9«
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