Category: Orchid Doctor

Q.U.E.: Slow Release Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Characteristics: it does not mold or attract flies; is a balanced food with 12-4-6 formula, with calcium, iron, sulfur and fritted potash; use only every three months. OD66-179; OD67-236 Read More

QUALEX SHEETS: Description

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It consists of two thin sheets of clear plastic held together by plastic ribs and is used as a covering for greenhouses; the doubled skin with air between provides for heat conservation and good li... Read More

QUATERNARY AMMONIUM COMPOUNDS: Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They have good germicidal properties; control algae in swimming-pools and on hospital walls; as a pot dip at 0.257o; reduction in root and top growth frequently follows pot dip treatments of non-or... Read More

QUATERNARY AMMONIUM COMPOUNDS: One of the Best Kinds of Sterilants, Good Also for Virus

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Cover the object with a dilute solution as advised on the container and let the compound dry to oxidize in order to destroy the virus or bacteria. OA80-79; Physan 20, Roccal are two such. RMH Read More

QUILLING: New Leaves Stay Rolled and Upright

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Appears on vigorous dendrobiums, both evergreen type and D.phalaenopsis type; may be due to low humidity; the leaves do not look right but they function well. A79-1022 Read More

QUILLING: Of Leaves of Dendrobiums

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago D.phalaenopsis hybrids show lack of unfolding of the leaves; low humidity is thought to be a cause; leaves may be bound by dry, hard nectar; cause not really known; syringing may be beneficial. A80-4 Read More

QUILLING: What it Is

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago New leaves stay rolled and upright and do not unfold naturally, also applied to petals of flowers which develop a length-wiseeinward roll; seems that a wetting agent in an insecticide spray if appl... Read More

QUINOLINOL SULFATE: A Fungicide

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is used to control Pythium, Phytophthora, Sclerotium, Pseudomonas, Erwinia and petal blights; AH86-71 (8-Quinolinol) Read More

RAID NO-PEST STRIP: As Insecticide in Greenhouses

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It was effective in a window greenhouse where it eliminated the pests; it should be useful elsewhere. OIE85Jy-12 Read More

RAIN FOREST: Definition

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago There is no agreement in the botanical world as to what this means; of relevance to orchidists; discussion and preferred meaning given for it, for cloud forest, tropical rain forest, etc. ; refer t... Read More