Editorial Type:
Article Category: Research Article
 | 
Online Publication Date: 01 Mar 1989

Effects of Preemergence Herbicides on Hosta and Daylily

and
Page Range: 29 – 31
DOI: 10.24266/0738-2898-7.1.29
Save
Download PDF

Abstract

Thirteen preemergence herbicides were evaluated for phytotoxicity to container grown hosta (Hosta spp. Tratt. ‘Hyacinthina’) and daylily (Hemerocallis spp. L. ‘Sammy Russell’). Severe injury (28 to 55%) was observed from Ronstar (oxadiazon) and Goal (oxyfluorfen) for both species. The other herbicides did not cause visual injury. Three herbicides, Surflan (oryzalin), Endurance (prodiamine) and Pennant (metolachlor), were selected to investigate plant tolerance in field plantings at 1.1, 2.2, and 4.5 kg/ha (1, 2, and 4 lb/A). None of these herbicides caused visual injury or reduced shoot or root weight for 60 or 90 days after treatment. Daylily flower number was not affected by any of the herbicide treatments.

Keywords: phytotoxicity; herbicides; weed control; Cinch (cinmethyalin) exo-1-methyl-4-(l-methylethyl)-2-[(2-methylphenyl)methoxy-7-oxabicyclo[2.2.1]heptane; Devrinol (napropamide) 2-( -naphthoxy)-N ,N-diethylpropionamide; Endurance (prodiamine) 2,4-dinitro-N3,N3dipropyl-6-(trifluoromethyl)-1 ,3, benzenediamine; Eptam (EPTC) S-ethyl dipropylthiocarbamate; Goal (oxyfluorfen) 2-chloro-1-(3-ethoxy-4-nitrophenoxy)-4-(trifluoromethyl)benzene; Pennant (metolachlor) 2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methyethyl) acetamide; Premier (flumetralin) 2-chloro-N-[2,6-dinitro-4-(trifluoro-methyl) phenyl-n-ethyl-6-fluoro-benzene-methanamine; Prowl (pendimethalin) N-(l-ethypropyl)-3,4-dimethyl-2,6-dinitrobenzene-amine; Ronstar (oxadiazon) 3-[2,4-dichloro-5-(1-methylethoxy) phenyl-5-(1, 1-dimethylethyl)-1,3 ,4-oxadiazole; Surflan (oryzalin) 4-(dipropylamino)-3,5-dinitrobenzenesulfonamide; Treflan (trifluralin) 2,3-dinitro-N-N-dipropyl-4-(trifluoromethyl)benzeneamine; XL (oryzalin + benefin) N-butyl-N-ethyl-2,6-dinitro-4-(trifluoromethyl)benenamine
Copyright: Copyright, All Rights Reserved 1989

Contributor Notes

Technical contribution no. 2896 of the South Carolina Agricultural Experiment Station. The authors are grateful to The Horticulture Research Institute, Inc., 1250 I Street, N.W., Suite 500, Washington, DC, 20005, for a grant to partially support this research.

2Associate Professors of Horticulture.

Received: 02 Sept 1988
  • Download PDF