Newly Posted Articles

PAPHIOPEDILUMS: Hybrids with Phragmipediums

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Are they possible? -- although some attempts have been made, there are few flowers; for the history, cytological studies, chromosome counts, etc., refer to A85-6x Read More

FOLIAR FEEDING: Benefits

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Research shows many plants, presumably including orchids, are able to absorb nutrients through their leaves, buds, flowers and fruits. OD72-211Research shows that certain plants are able to absorb ... Read More

TOXIC ELEMENTS: They Can Start as Beneficial Ones

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago At higher levels many become toxic: nitrogen, potassium, magnesium, iron, zincc and boron; for instance, excess of potassium has been isolated as the potential cause of growth retardation, particul... Read More

TRACE ELEMENTS: Added

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Fish fertilizer or seaweed can furnish them and can be applied in addition to a regular fertilizer. OIE86JY-10 Read More

PALCO WOOL: Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Tends to reduce break-down in pots; is broken down rapidly itself by fertilization; if not changed every 12 to 18 months its decomposition will kill roots. OD69-63 Read More

THRIPS: Controls, in Increasing Degrees of Toxicity to the User

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Malathion (LD50=2oz.), lindane (1/2 oz.) and dimethoate (1/2 oz.) A68-582 Read More

TREE FERN: Its Nitrogen Content

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago It has little nitrogen, so use a bark fertilizer, such as 30-10-10. A81-27 Read More

TREE-FERN FIBER: Hawaiian

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Also known as hapuu; it is getting scarce; a fertilizer to use with it or for plants mounted on it is a l0-10-10 ratio, used once a month, or one pound to 100 gals, for 400 sq.ft. A61-315 Read More

PAPHIOPEDILUMS: Leaf Growth

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Between the first of June and the end of December a required complement of leaves must be produced in order to mature the plant for flowering; fertilize at half strength three out of four waterings... Read More

CYMBIDIUMS: Bud Drop

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago During hot weather buds drop if the plant has an ancestor C. lowianum 'concolor' which has as its progeny C. Alexanderi 'Westonbirt'. OA86-82 Read More