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In this study a new formulation of EPTC, the new products glyphosate and napropamide and high rates of butilate, vernolate and EPTC were tested in purple nutsedge (Cyperus rotundus L.). The slow release formulation of EPTC was more persistant than the regular EPTC. High rates (16 kgia/ha) of the ...


Piedrahíta Castañeda, WilsonDoll, Jerry D.[Aspectos recientes en el control del coquito (Cyperus rotundus L.)]Aspectos recientes en el control del coquito (Cyperus rotundus L.)

Twenty-six herbicides were evaluated at 3 rates each in cassava (Manihot esculenta Crantz). For the 21 preemergence herbicides, planting was done before application in half the plot and then in the other half. After incorporating the 5 preplant-incorporated products, half the plot was ridged befo...


Doll, Jerry D.Piedrahíta Castañeda, Wilson[Margen de selectividad de varios herbicidas en la yuca]Margen de selectividad de varios herbicidas en la yuca

Cutting sedge (Scleria pterota Presl.) is a common weed in pastures. It grows vigorously and forms patches in poorly drained soils and appears uniformly dispursed in pastures on rolling land. It is unpalatable to cattle and is extremely competitive with pasture species. It was found that both diu...


Argel M., Pedro J.Doll, Jerry D.[Control de cortadera (Scleria pterota Presl.) y establecimiento de pasto]Control de cortadera (Scleria pterota Presl.) y establecimiento de pasto

Red rice (Oryza satlva L ) has been a serious problem in rice fields for hundreds of years and even now no effective control measure exist. In this study, new approaches were evaluated. Flooding for two weeks prior to seeding IR-22 eliminated 99 percent of the tall variety Bluebonnet 50, which ha...


Cheaney, Robert L.López, Rodrigo L.Doll, Jerry D.[Algunos métodos promisorios para el control de arroz rojo y arroz espontáneo de variedades indeseables]Algunos métodos promisorios para el control de arroz rojo y arroz espontáneo de variedades indeseables
Piedrahíta Castañeda, WilsonDoll, Jerry D.[Efecto de la rotación de herbicidas y cultivos sobre el complejo y la población de malezas]Efecto de la rotación de herbicidas y cultivos sobre el complejo y la población de malezas

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