-10-


 Treatments were DCPA at 9 lb. a.i/acre, paraquat (l,l'-dimethyl-4,4-
 bipyridinium dichloride) at 1 lb. a.i./acre, napropamide at 2 and 4 lb. a.
 acre, terbacil (3-tert-butyl-5-chloro-6-methyluracil) at 1/8 and 1/4 lb.
 a.i./acre, and hoed and unhoed checks. During the first season, chloroxuron
 and napropamide gave best weed control and smallest size weeds on November
 10 and December 4 with no significant yield effects. During the second
 season, napropamide and paraquat gave best weed control on December 1 and
 December 28, and weed control was excellent in all herbicide treatments on
 February 26. Herbicide drift in the paraquat treatment the second season
 resulted in some plant damage which may have reduced yields. Evening primrose
 (Oenothera laciniata, Hill) was the major weed both seasons.

23. Gilreath, J. P., and E. E. Albregts. 1984. Weed control in mulched straw-
 berry production. Proc. Fla. State Hort. Soc. 97:171-174.

 Preplant application of 1 and 2 Ib/acre of alachlor (2-chloro-2',6-diethyl-
 N-(methoxymethyl)acetanilide) and 2 and 4 Ib/acre of ethofumesate
 (2-ethoxy-2,3-dibydro-3,3-dimethyl-5-benzofuranyl methanesulfonate) and
 postemergence applications of 0.5 lb/acre of two different brands of
 acifluorfen (sodium5-(2-chloro-4-trifluoromety )-phenoxy)-2-nitrobenzoate)
 were evaluated for weed control and crop phytotoxicity in mulched 'Tufts'
 strawberries (Fragaria X ananassa Duch.) during the 1982-83 production
 season. Alachlor and ethofumesate provided excellent early season grass and
 broadleaf weed control. Acifluorfen (both brands) provided good control to
 carolina geranium (Geranium carolinianum L.), but did not control grass
 weeds. Strawberry plant vigor was reduced by the high rate of alachlor and
 both brands of acifluorfen; however, the effect of acifluorfen was confined
 to the foliage present at treatment and plants soon overcome the visible
 injury. None of the treatments provided season-long weed control. Fewer
 fruit were produced in herbicide treated plots than in the untreated
 control.

24. Gilreath, J. P., and E. E. Albregts. 1985. Weed control in the strawberry
 summer nursery. Proc. Fla. State Hort. Sco. 98:258-263.

 Herbicides and soil fumigants were evaluated for weed control and daughter
 plant production in a strawberry (Fragaria X ananassa Duch.) summer nursery
 in 1981, 1982, and 1984. In 1981, napropamide (2-(naphthoxy)-N,N-
 diethylpropionamide) and DCPA (dimethyl tetrachloroterephthalate) were not
 injurious to 'Dover' strawberry plants, while they severely reduced plant
 vigor in 1982. Postemergence applications of acifluorfen (sodium 5- 2-chloro
 -4-(trifluoromethyl)phenoxy -2-nitrobenzoate), fluazifop-butyl(butyl 2- 4-
 5-(trifluoromethyl)-2-pyridinyl)oxy phenoxy propanoate) and sethoxydim
 (2- 1-ethoxylmino )buty -5- 2-ethylthio propyll -3-hydroxy-2-cyclohexen-l-one)
 did not reduce plant vigor in 1982, while application of bentazon (3-
 isopropyl-lH-2,1l,3-benzothiadiazin-3(3H)-onee,e-dioxide) resulted in almost
 complete death.
 Multi-chemical weed management systems were evaluated in 1984 with 'Dover'
 and 'Florida Belle' strawberry plants. Two applications of napropamide and
 alachlor (2-chloro-2',6'-diethyl-N-( methoxymethyl)acetanilide) reduced
 strawberry plant vigor. After 3 applications of each preemergence herbicide,
 1 application of fluazifop-butyl and 1 application of glyphpsate, (n-(
 phosphonomethyl)glycine), plant vigor was reduced significantly. Four
 application of napropamide, DCPA or alachlor, in conjunction with 2
 applications of fluazifop-butyl and 3 wiper applications of glyphosate