Category: Orchid Doctor

PALM NUTS: African Palm Nuts as a Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The shells are good for potting; can be broken to various grinds; an inexpensive substitute in South America for fir bark. A70-413 Read More

PALMETTO BUGS: Cockroaches; Control in the Greenhouse

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use Baygon as directed; the effect on frogs is not known. A74-114 Read More

PANODRENCH: Toxicity in Humans

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Nausea, vomiting, diarrhea, stomach ache, staggering, weakness, delirium; it injures the kidneys and bowels. A68-583; Panodrench now prohibited in most countries. OWD Read More

PANOGEN: Fungicide

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Used to control Orchid wilt, collar rot, black rot (Pythium ultimum), Phytophora and seedling damp-off; use at 1/2 teaspoon per Imperial gal.; very dangerous to humans; use respirator and full prot... Read More

PAPHIOPEDILUM MAUDIAE: A Problem Plant

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It grows tall and weedy and does not flower; this may be due to overfertilizing; it needs 1,000 to l,500fc. 10 to 12 hours daily. A76-611 Read More

PAPHIOPEDILUMS (MOTTLED LEAVES): Problem Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago How to grow them: they need heavy shade, especially around early springtime; high temperatures can check their growth; lots of air movement is necessaary all year round and yet high humidity must b... Read More

PAPHIOPEDILUMS: Asexual Propagation

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Multiplication of explants in vitro produces 200 or more plants in a year from one source; refer to A88-274 Read More

PAPHIOPEDILUMS: Bloom on Short Stems

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Stem length is affected by light, and strong light tends to produce short stems; heavy shade is conducive to long stems; Paph. Maudiae can produce very long stems. A75-192 Read More

PAPHIOPEDILUMS: Blooming Frequency Variation

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Paph. Maudiae blooms freely even on a windowsill; Paph. Claire de Lune blooms regularly but not freely; Paph. harrisianum is unusually free-flowering. A69-524 Read More

PAPHIOPEDILUMS: Breeding

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Its history in Europe with the outstanding hybrids in perspective; an American viewpoint. W9-43;; -49 Read More