Category: Orchid Doctor

HEATING: Kerosene Stove

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use it only in an emergency; adjust it to a smokeless flame. A78-226 Read More

HEATING: Lp Gas Heater

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Unvented it causes yellowing of the leaves and bud drop; it produces ethylene gas; not recommended. A70-345 Read More

HEATING: Oil Stove

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Satisfactory if vented to the outside; adjust the flame to burn blue to yellow with no smoke, A71-715 Read More

HEATING: Wood Stove

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is not recommended because wood burning produces ethylene, even when vented. A78-13 Read More

HEATING: Wood-burning Stove

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It could be injurious to the flowers; burning wood emits ethylene; well-vented and not dampered it should be safe. A74-300 Read More

HERBICIDES: Use in Greenhouse

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago On floors, use Karmex DW liberally on the soil, or Princep 80W. A79-910; F79-154 Read More

HERBICIDES: Use in Greenhouse on Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They seem to have a cumulative residual effect harmful to the plant; use only under benches. F79-154 Read More

HOAGLAND'S SOLUTION: A Nutrient Feed

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Two types: "P.N." solution: to 25 gals, water add tablespoons of, Potassium phosphate (monobasic) 1; Potassium nitrate 4; Calcium nitrate 7; Magnesium sulfate (Epsom salts) 4; "T.C." solution: Ammo... Read More

HOLMAN BOGS: Artificial Bogs for Growing Cypripediums

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They consist of a plastic liner in a hole one foot deep; contain peat soil in a layer and also soil substratum with organic matter; many other details; refer to A76-415+; A77-S24 Read More

ACID OR ALKALINE: Changing the Values

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Various means can be used: tufa, a limestone form, can be added to paphiopedilums from limestone cliffs; bark composts acidify with age; peatmoss, pine needles, oak leaves in the mix produce acidit... Read More