Newly Posted Articles

ALFALFA: Growth Stimulant

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Contains triacontanol; a powder available from healthfood stores for about $1., used in seedling mixes and others; experimental. OA83-26; OIE87Sept-7 Read More

PLOIDY: Problems Caused by Chemical Change of Diploids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Cells should either double or quadruple their chromosomes; on the variation in results being obtained, especially in cymbidiums; the problems connected;recognition of changed clones; the effects on... Read More

MANURES: As Fertilizers

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Chicken and other animal manures contain organic materials which can accumulate in the potting medium to reduce its aeration; the major nutrients are present and most of the micronutrients. P68(3)-... Read More

FLASKS: Magenta Vessels

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Cubical shaped, light weight plastic culture flasks or containers, easy to ship, etc.; advt. A84-1345 Read More

BARK: Potting Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A typical mixture would have about 15 parts medium bark, 1-1/2 parts coarse Perlite, 174 part charcoal chips (quarter-inch size). OR87-173For cymbidiums in a high humidity area near the ocean in Ca... Read More

POTASSIUM: Functions

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is thought to be related to cell organism, cell permeability and state of hydration;it is possibly vital to the plant's general health. AU75-45 Read More

POTASSIUM HYDROXIDE: Used to Achieve Ideal Ph Range in Water

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is a very caustic lye; it is pre-mixed in a stock solution, to be added to barrels of rain-water in Hawaii where volcanic gases have been absorbed by the rains to drive the pH down to 4, which i... Read More

SOFT ROT (ERWINIA CAROTOVORA): Destructive of Cattleya Types

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The bacterium enters through wounds; causes rapid wet rot with offensive odor in succulent tissue, more slowly in hard growth; cut off and destroy; spray with Physan 20 at 1.5 tpg; treat benches wi... Read More

SOUTHERN BLIGHT: Sclerotium Rolfsii, Pellicularia Sp.

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Crown rot; infrequent but devastating especially in warmer parts of the world; attacks roots, pseudobulbs, lower part of leaves; control: sterilize pots and media with 4% formalin; dip plants in Na... Read More

OUTDOORS GROWING: In Miami Area

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago "grow or go" applies to orchids of minor importance in a large garden; plants are attached especially to oak trees on the east side at a point where water sprinklers hit a window-screener pouch wit... Read More