Newly Posted Articles

BARK, REDWOOD: Suitable Kinds

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Local garden shop kind is suitable if it has not been treated with fire-retardant. A79-4 Read More

BARK, RE-USE: In Potting Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Uncertainty rules; use trial method; put some plants in previously used bark and some in fresh and compare results. A61-582 Read More

BARK, SOUTHERN PINE: Suitability for Potting

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Has been used but results were not very satisfactory as a rooting medium; use it only weathered and composted. A75-437 Read More

BARK: Advantages and Questions

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago It's a variable product and does not produce as good growth as osmunda did, but it's accepted because it is easy to use although it can cause more trouble than most other media; what is lost by usi... Read More

BARK: Best for Cymbidiums?

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago At end of third year of trials, plants in bark were significantly larger than in pumice or calcined clay. OA84-78 Read More

BARKS: From Hardwood Trees

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago No trial has been successful with them; they decompose rapidly; develop heat and injure roots; high nitrogen favors decomposition; if available, chestnut bark is resistant. A74-896 Read More

CARBARYL: Toxicity Reactions in Humans

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Nausea, vomiting, diarrhea, salivation, nasal discharge, congestion, nervousness, tremor, dizziness, convulsions. A68-583 Read More

BEES: As Pest in Greenhouse

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Spring is when they appear most; bumblebees seek out cymbidiums; honey-bees are a lesser nuisance. OR74-226They can pollinate some plants, and cause flowers to fade; screen air openings; use a swat... Read More

HUMIDITY: Maintaining it

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago The relative ineffectiveness of "damping down" compared with using misters; at 5,000 feet altitude or more the amount of water carried by the air can be about one-third reduced; to maintain it in t... Read More

LIME: Oyster Shell, Its Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago It is calcium carbonate lime; ground up shells comes in coarse type for chicken scratch or flour type used by many orchid growers. C74-51 Read More