Newly Posted Articles

BLACK ROT: On Specimen Cattleya; Benlate Does Not Cure

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Black rot is not cured by Benlate, use Dexon-35, 1 tpg. soak for 20 minutes. A74-217 Read More

BEST PLANTS: Quality Awarded Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Those with 20 or more quality awards throughout AOS judging history number 79; those with 40 or more awards number 21; for the names on these aristocratic lists refer to AA86-208 Read More

BEST PLANTS: Ten Most Liked in Tampa

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Laelia anceps (four clones), Encyclia vitellina, Stanhopea tigrina, One, microchilum, Gongora galeata, One. morenoi, Bepi. Gordon Vickers, Barkeria scandens. OIE86Jy-8 Read More

BLACK FLY: Common in Greenhouses

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Thrives in wet soil or media; tiny white larvae dwell in media; adults flutter up when disturbed; do no damage; (leave excreta balls on foliage); a nuisance; control with malathion. N329 Read More

BOTRYTIS: On Orchid Blossoms

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Fungus spores germinate during humid conditions, usually at night; there are six kinds that do this; a drop in humidity plus clear days will stop development; fans that produce gentle but definite ... Read More

NECTARS: "honey" Exuding Around Flowers

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is associated with good culture. A73-1081; an adaptive mechanism enabling plants to avoid excessive carbohydrates resulting from enhanced photosynthesis. A67-468; the "honey" contains 97% sucros... Read More

NEMATODES: Small Worm-like Creatures

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Usually associated with the soil, in orchids with the rhizome and potting mixes; surgery of the affected parts will help reduce incidence. P71(3)23; use sterilization of the potting medium. S195 Read More

NEMATODES: Three Kinds Have Been Found

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago One in Hawaii feeds on and kills the buds of terete vandas; one causes root lesions in cymbidiums in California, and one infests leaves in New Zealand; rare. N330 Read More

CYMBIDIUMS, MINIATURE: Temperatures Required

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Maximum and minimum difference is less than that required for standards (25 deg.F.); when grown with cattleyas they flower a month or two earlier. OD74-136 Read More

SELFING: Improving Species

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Superior hybrid strains have been developed recently by selfing and sibling-crossing and to compare these with the original jungle plants is incorrect. AA86-29 Read More