Newly Posted Articles

OVERPOTTING: Poor Culture

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is conducive to poor aeration after watering; it is self-defeating as an aid to less watering, or as an aid to less frequent potting. F70-87 Read More

SHREDDING: Of Sphagnum or Peat

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It can be done by forcing it through 1/4 in. hardware cloth sieve. A76-427 Read More

SYSTEMICS: For Scale Control

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Systemic sprays are not very effective because orchids grow too slowly to get a good "burst" of pesticide into the affected area; Cygon is the best for Boisduval scale but is not labelled for green... Read More

OVERWATERING: Kills Roots

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Roots are lost and bulbs shrivel; repot in small pot, after removal of some back bulbs, in sphagnum moss to induce starting of new roots; water sparingly. OR73-113 Read More

PAPHIOPEDILUMS: Blooming Frequency Variation

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Paph. Maudiae blooms freely even on a windowsill; Paph. Claire de Lune blooms regularly but not freely; Paph. harrisianum is unusually free-flowering. A69-524 Read More

SYSTEMICS: Review

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For description, etc. of Di-Syston granules, Di-Syston cartridge, Meta-Systox-R sprays and Cygon spray, refer to C69-46+ see also Cygon 2E; Insecticides; Temik Read More

TEMPERATURE: Control

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In a confined area where fluorescents are used such as in a space four feet by five feet heat is generated by the ballasts which can be rewired to operate outside the closet; a fan circulating the ... Read More

CATTLEYAS, MINIATURE: Under Lights

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago C. trianaei or C. labiata hybrids will not flower if lights are on for more than 14 hours a day so cut the time to 12 hours or less in winter. A84-473The unifoliates turn into bifoliates; normal un... Read More

ORCHIDS: Largest

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is GrammatophyHum wallissii and the clone 'Burnham' is listed as such in Guiness Book of records. AU85(4)-38 relationship with insects = in addition to aspects of pollination, there are other sy... Read More

ORCHIDS: Starting Your Own Hybrids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Start with a plan, learn the mechanics of pollenization, remov ing the pod, flasking, etc., all briefly noted. OD87-61 Read More