In-and-out rototilled. Dalapon is effective on grassy weeds such as Bermuda grass sod. Do not mix Dalapon with other herbicides In the spray tank. Karmex and Paraquat may be mixed where both a pre-emergence and "burn-down' of existing weeds are needed at o)ce. Thorough cleaning of spray tank, hose, and nozzles by ;raining, flushing, and cleaning with detergent are recommended following the use of herbicides. Roundup (Glyphosate) has alro -:ven excellent control of weeds but is not cleared for use on bearing grapevines yet. Herbicidesuded for grapes Product Paraquat ;-alapon1 iarm;:x 80W I Luron ) Rates used 1 qt./50 gal. 4 tsp./gal. 5 lbs./50 gal. 0.1 lb./gal. 3 lbs./sprayed acre 2 tsp./gal./ 100 sq. ft. Amt. of X-77 Spreader 4 oz./50gal. 1/2 tsp./gal. 4 oz./50 gal. 1/2 tsp./gal. None required Specifications Wet above-ground portion of weeds whenever needed (3 to 5 times a year) Wet leaf surface when grass is actively growing (twice each year, 3 weeks apart) Wet surface of ground evenly in a band on each side of row (once each year, usually March). Vines must be 3 yrs. old and 1 1/2 inches trunk diameter SCaution: muscadine grapes are subject to injury by Dalapon if the ground is bare and the material is taken up by the vine roots. i"-gation of Grapes (J. A. Mortensen) research on irrigation of grapes in Florida has been needed for .o:nc time in order to determine whether the improvement in -ine . '.cwh, yield, and quality is sufficient to justify the cost o' irc'igating. Beginning in June 1976 we now have a one-acre .'..sation trial on muscadine grapes and a half-acre trial on 'i!ch grapes. The treatments are (1) Microjet irrigation plots .. '2) Non-irrigated check plots. No data are available at . J time, but the Microjet system will be demonstrated during ;iL. vineyard tour. A marked response to irrigation in shoot j-owth and yield is evident in 1977. All irrigation equipment, includingg the filter, was donated by the Southern Citrus Nurseries Corporation, Dundee, Florida, who sell Microjet systems.