Newly Posted Articles

ROOTS: Old Ones

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Experiments with root absorption of a trace element: showed that old roots continue to function and are of value to the plant. ORII-210. Read More

ROOTS: Outside Pots

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Why do they grow so vigourously?; it is because of too much watering, or the medium is too poorly aerated or dense. A69-55 Read More

MITES (GENERAL): Characteristics and Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago During egg stage and three chrysalis stages they are relatively immune to pesticides, especially to organic phosphates (Malathion,etc.); mites develop resistance to one pesticide which makes relate... Read More

MITES, FALSE SPIDER: Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Most vicious and destructive of pests; too small to be seen even with a magnifying glass unless it's a 10X, 14X lens; phalaenopsis mite (Tenuipalpus pacificus) attacks ferns and orchids; they do no... Read More

MITICIDES: Most Widely Used

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Vendex, has low toxicity to humans, claims are made that it kills the spider mites as larvae, chrysalis,eggs, insects; Pentac, relatively safe with long residual action; Kelthane, where obtainable;... Read More

PESTICIDES: Characteristics and Dangers

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A recent review of them from the orchidist's viewpoint and requirements, with an LD50 list; refer to AU80-25+ Read More

VANILLA: Time to Harvest

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago When the tips of the pods show yellow about 1/4 inch; 125 pods. A76-115 Read More

PEAT MOSS: Handling

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Persons handling peat moss can contract sporotrichosis an unpleasant fungus infection which can enter the skin through nicks and abrasions, or be inhaled; the first is usually mild and is treated w... Read More

PAPHIOPEDILUMS: Pollination

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Column and anthers, location = for an illustration, refer to A57-247Select two plants for hybridization; either remove the pouch of the pod plant, or with a razor slice off the rear of the pouch; u... Read More

CORK BITS: For Potting Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Tree-fern is preferred over cork bits usually; cork slabs need osmunda, sphagnum moss or tree-fern pads to start the roots. A80-960 Read More