Newly Posted Articles

BACTERIAL LEAF ROT: On Leaves of Ascocendas

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Bordeaux mix not very effective against bacteria; try Physan at 15 ml. per gallon of water. A74-792 Read More

BACTERIAL ROT: Control Recommended

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Agri-mycin at about one-fifth the recommended dosage; spray no more than four times a year; if used more often it may cause deformities in flowers; use any time as pot treatment. OD73-139 Read More

BACTERIAL ROT: Treatment

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Rots caused by Pseudomonas can only be limited or arrested by a full dip in a bactericide such as Physan 20, at 15 ml. to 4 liters of water (3tpg.), a teaspoon is 5ml.; cut out diseased parts befor... Read More

GREENHOUSES: Epoxy Enamels as Paint on Wood

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Is used for boat bottoms, should do almost as well in greenhouses. A66-580 Read More

FERTILIZERS: Proper Frequency and Strength

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In plants fertilizer-nutrient is only about 1% of the green weight; water temperature, light, humidity and air are far more important; recommendation: fertil- ize not more than fortnightly, with 1 ... Read More

FERTILIZERS: Proportions

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago One teaspoon per gallon is equivalent to one pound per 100 gallons of water. OD71-95 Read More

FERTILIZERS: Slow Release Fertilizers

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Include Golden Vigoro, Mag-Amp, Nitrophoska (Aus.), Osmocote, QUE Slow Release, etc. RMH Read More

BACTERIAL SOFT ROT: Erwinia Carotovora, a Bacillus

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Incurable; rare; destructive; cattleyas most affected; destroy immediately rather than trying to heal; water-soaked green spots on leaf break open at slight touch; exudation contaminates the bench ... Read More

NAMES: Hybrid Generics

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A list of derived names originated by growers and horticulturists from 1887 to 1973, with sources; refer to W2-485+For the latest list of combined names from genera, see Sander's list of orchid hyb... Read More

PSEUDOBULBS: Twisted Bulbs on Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago These can develop for no apparent reason, except that water lodging in immature growths may be the cause. A85-832 Read More