Newly Posted Articles

PAPHIOPEDILUMS: Leaf-tip Die-back

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Is caused by too much fertilizer, or a calcium deficiency, or drying-out of the plant, especially during days of high temperatures. A83-1156 Read More

PAPHIOPEDILUMS: Problem Taxonomy

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A new revision or two of the genus have shown the divergent views of the splitters, Dr.Fowley, for instance as compared with the lumpers, Dr. Cribb, for example; a brief review of the problems and ... Read More

TRUBAN 30WP: Toxic Dose for Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago One ttpg. was toxic; 48 oz. to 100 gals. water is toxic; the recommended spray is eight oz. per 100 gals. water. A76-14 Read More

CHROMOSOMES: Failure

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The Convention qualifies as the biggest fraud as applied to plants since Prohibition in the U.S.; it has probably killed more plants than it has saved; originally written for protection of animals,... Read More

CHROMOSOMES: Is it Effective?

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The greatest threats are Japan, Belgium and Holland which have not signed the treaty; until they ratify it they will remain the worst importers of wild species. OA86-64 Read More

TRUBAN 30WP: Toxicity to Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago One rounded or heaping teaspoon per gal, water is not toxic, but one tablespoon to a gal. is toxic. A74-502 Read More

TUFA: A Volcanic Rock

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Has a rough or porous textured surface, a volcanic form of limes tone. RMH Read More

TURFACE: What it Is

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A monmorillonite clay product = used as an additive to potting media; it is calcined at high temperatures; comes in granulated form; highly absorbent; provides aeration; has other qualities; refer ... Read More

VANDAS: In Baskets

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Because "potting on" with them can be a problem, start with three inch baskets for seedlings and when necessary move it whole into a four inch or five inch size, and continue this system (move both... Read More

VANDAS: Lack Roots Up-stem for Repotting

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Air-layer the stems to induce rooting by wrapping some places on the stem with moist sphagnum wrapped with polyethylene secured top and bottom with string or elastic, until new roots are large enou... Read More