Search Results

You are looking at 1 - 2 of 2 items for

  • Author or Editor: Brian C. Bushe x
Clear All Modify Search

Abstract

A study of anthurium farms in Hilo, Pahoa, and Kurtistown, Hawaii was conducted to assess types of unmarketable anthurium (Anthurium andraeanum André cv. Ozaki) flowers. Of the 5000 flowers harvested from test plots on each farm during 1 year, total flowers rejected were 32%, 31%, and 26% at the three farms, respectively. At all farms, mechanical injury was the most common type of reason for rejection of flowers, followed by curved petiole; rejections due to insects, mites, and diseases were minimal. The incidence of sunburn, phytotoxicity, thrips, and mites differed among seasons at Hilo and/or Kurtistown.

Open Access

Abstract

Dimethoate 4EC, fenpropathrin 2.4EC, fluvalinate 2F, oxamyl 2L, chlor-pyrifos 4EC, malathion 5EC, diazinon 4EC, and oxydemeton-methyl 2EC insecticides significantly reduced injury of anthurium (Anthurium andraeanum Lind. & Andre cv. Ozaki) flowers by the orchid thrips, Chaetanaphothrips orchidii (Moulton). Injury was characterized by white streaks and/or scarrings occurring primarily on the abaxial surface only or on both adaxial and abaxial surfaces of the spathe. Injury on the adaxial surface occurred only at 0.15% of all thrips-injured spathes observed during the study period. Thrips injury on anthurium flowers in control plots during Aug. 1984 to Sept. 1985 decreased to 3% during Feb. and Mar. 1985, and increased to 90% during Sept. 1985. Chemical names used: O,O-dimethyl S-[2-(methylamino)-2-oxoeth-yl]phosphorodithoate (dimethoate); (Rs)-α-cyano-3-phenoxybenzyl 2,2,3,3-tetramethyl cyclopropanecarboxylate (fenpropathrin); N-[2-chloro-4-(trifluoromethyl)phenyl]-DL-valine (±)-cyano(3-phenoxyphenyl)methyl ester (fluvalinate); S-{2-(ethyl suffinyl)ethyl}O,O-dimethylphosphorothioate (oxydemeton-methyl); methyl 2-dimethylamino)-N-[[(methylamino)carbonyl]oxy]-2-oxoethanimidothioate (oxamyl); O,O-diethyl 0-[6-methyl-α-(1-methylethyl)-4-pyrimidinyl] phosphorothioate (diazinon); O,O-diethyl O-(3,5,6-trichloro-2-pyridyl)-phosphorothioate (chlorpyrifos); and diethyl [(dimethoxyphos-phinothiovl)thio] butanedioate (malathion).

Open Access