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Control of Problem Weeds Timothy Prather, Tim Miller, and Andrew Hulting Revised:  June 2016 This section gives information about specific weeds that may be troublesome to control. Herbicides and/or rates listed cannot necessarily be used on cropland. ...
Beancaper, Syrian (Zygophylium fabago) Remarks Control is unknown, although metsulfuron appears promising in initial trials. Other data suggest glyphosate at 1.5 lb ae/a and picloram at 1 lb ae/a are effective. Site of action (metsulfuron) Group 2: ...
Bermudagrass (Cynodon dactylon) fluazifop (Fusilade DX) Rate 0.25 to 0.375 lb ai/a (1 to 1.5 pints/a) Time Apply to actively growing bermudagrass with 4- to 8-inch runners. Remarks Apply with 1% (v/v) crop oil concentrate or 0.25% (v/v) nonionic ...
Bindweed, field or perennial morningglory (Convolvulus arvensis) 2,4-D (for suppression) amine Rate Broadcast treatment: 2 to 3 lb ae/a Time Apply at bud growth stage or at summer fallow in early August. Remarks Use 2,4-D to help reduce bindweed stand 60 ...
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Blackberry vines, wild (Rubus spp.) aminocyclopyrachlor + metsulfuron methyl (Streamline) Rate 3.8 to 4.5 oz/a aminocyclopyrachlor + 1.2 to 1.4 oz/a metsulfuron (9.5 to 11.5 oz/a of product) Time Apply to actively growing woody plants. Remarks Adjuvants ...
Blueweed, Texas (Helianthus ciliaris) dicamba (Banvel, Rifle, or Clarity) Rate 2 to 4 lb ae/a Remarks Reported to control this plant, although data are lacking in the Pacific Northwest. Follow label instructions. Site of action Group 4: synthetic auxin ...
Brackenfern, western (Pteridium aquilinum) asulam (Asulox) Rate 1.6 to 3.3 lb ai/a Time When bracken is in full frond. Remarks Apply on uncultivated land, reforestation sites, and Christmas tree plantations only. Asulam has a half-life of 6 to 14 days in ...
Broom, Scotch (Cytisus scoparius), French (Genista monspessulana), Portuguese (Cytisus striatus), and Spanish (Spartium junceum) glyphosate Rate 1.5 to 3 lb ae/a or 1.5 to 2% solution for handgun sprayer application. Time Apply to actively growing plants ...
Buffalobur (Solanum rostratum) diflufenzopyr + dicamba (Overdrive) Rate 0.175 to 0.35 lb ae/a (4 to 8 oz/a) Time Apply to actively growing plants. Remarks For improved uptake if weeds are under moisture or temperature stress, use a nonionic surfactant or ...
Bulrush, small-fruited (Scirpus microcarpus), softstem (Scirpus validus), and ricefield (Schoenoplectus mucronatus) 2,4-D LV ester Rate 3 lb ae of 2,4-D ester in 100 gal water. Use LV ester formulation plus 3 gal diesel or stove oil for spot treatment. ...