Newly Posted Articles

CYMBIDIUMS: Space Between Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A simple rule evolved over time states one full space between two plants; plants too close together have always been the commonest form of cultural suicide. AU79-37 Read More

FLUORESCENT LIGHTS: To Produce Excellent Color in Flowers

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago For display, the odd combination of one standard (not wide-spectrum) Gro-Lux tube #F40/GRO, with one Cool White Deluxe tube #F40/CWX (not the standard Cool White tube); under them white is pure whi... Read More

CYMBIDIUMS: Tetraploids, Spontaneous

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Alexanderi 'Westonbirt'; Pauwelsii 'Comte de Hempjtinne'; Rosanna 'Pinkie'; Shirley 'McBean's' ; Babylon 'Castle Hill'; Babylon 'Carpentier'; Vieux Rose 'Dell Park'; Pearl Easter 'McBean's'; Dorama... Read More

NUTRIENT CONTENT: Of Plant Leaves

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Results of analyses of leaves from various crops with calculated ratios of elements shows remarkable similarity; for cattleyas it is 3N-0.65P2O5-5.2K20; for cymbidiums it is 3N-0.54P205-2.9K20. OD6... Read More

PESTICIDES: Review

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Safety ratings, label warning statements; toxicity table of the most popular formulations; their availibility; a compatibility table of 22 kinds; their application; storage, shelf life, etc.; refer... Read More

COLOR BREAK: Caused by Other Than Virus

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Some plants produce abnormal flowers with a white or light wedge in a petal and may do so every few years. A66-134; OD71-199 Read More

MERISTEMMING: Clonal Multiplication

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago For a review of principles and practical applications, refer to W2-169+; tissue culture,a manual, OB1-203-293 Read More

PESTICIDES: Registration for Use on Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Many standards are not registered: Truban (ethazol), Subdue 2E (metalaxyl) and Physan (n-alkyl ammonium chlorides) are three frequently recommended and widely used; a petition is recommended to get... Read More

ASCOCENDAS: With Dead Growing Tip

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Cut it off, likely a new growth will emerge from a leaf axis below. A81-1436 Read More

ARAMITE: Miticide

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Use 15% WP at 2 tpg.; two applications 7 to 10 days apart. OD65-169 Read More