SHADING: Supplementary Type

Culture Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin over 3 years ago.

Article Blog   Article Index
Ordinary plastic door or window screening provides about 2 0% screening, and two layers can be used effectively in an emergency. A85-1109
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Shading

Shading Comments
SHADING, ECLIPTIC: Permanent with No Movable Parts The amount of shading changes with the inclination of the sun; for the south end of a greenhouse; like a fixed Venetian blind; slats are set so low that the winter sunlight enters, but the high summer sun is blocked; specifications and diagrams; refer to ODA74-64+ 0
SHADING: For Cattleyas In California use 63% shade cloth for them and for dendrobiums. A86-719 0
SHADING: For Greenhouses Recently developed products include "Vari-Shade" a coating; "Ripple glass" which allows good light to pass through and alleviates the need for shade; "Papronet" a netting for shade made of polypropylene and polyethylene, for details refer to OR81-186 0
SHADING: For Phalaenopsis In California use 73% for both them and Paphiopedilums. A86-719In New York State in winter use not more than 25%. A81-688 0
SHADING: Lath Blinds These can be used to reduce the heating effect of sunlight and not its intensity by a compromise in lath blinds; raise parallel runners about nine inches above the glass and rest the rolled-up lath blinds (Western Cedar preferred) so that two rolls can be extended outward from the centre spot on the roof; for details and management see OR87My-84; A80-1140 0
SHADING: On a Fiberglass Greenhouse To vary the shade with the season; if the fiberglass corrugations run east-west, the high curves can be shade-painted leaving the trough area of strips clear to provide about 30% shade and as the sun shifts towards the south more available light will enter the unshaded part; neat, eh? A83-267 0
SHADING: Purpose It reduces both the heating effect of the sun and the intensity of light, so a compromise is always in order; the best by test is lath blinds, placed about one foot above the roof, and rolled into place when necessary; refer to OR87-84 0
SHADING: Removing it A wire brush on a long pole, using water and soap, or Sal soda (Sodium carbonate -- washing soda, if you can find it) are aids to its removal. OD87-10 0
SHADING: Too Much 70% shade for cattleyas will produce thin and weak plants, the surest sign of not enough light, and 55 to 63% is usually recommended (in California?) A84-1061 0
SHADING: Whitewash A substitute for the old-fashioned whitewash can be found in a product used for marking lines on playing fields, such as baseball diamonds; one name for it is Sportsfield Whiting; mixed with water it can be applied like paint as thickly as need be; it takes a bit more cleaning off in the fall. RMH 0

New Topics

  1. Yahoo Alex asked question Can you identify this orchid? in category General Discussion
  2. Darrin Duling asked question unknown Oncidium intergeneric in category General Discussion
  3. Darrin Duling asked question need id on oncidium intergeneric in category General Discussion
  4. Darrin Duling asked question test in category General Discussion
  5. Kate McMillan started topic Horticultural Charcoal vs Activated Charcoal in category General Discussion

New Comments

  1. Samuel Yanos commented on member plant Coel. rochussenii 'Waki' by Melvin Waki
  2. Yahoo Alex commented on topic "Can you identify this orchid?" by Yahoo Alex
  3. Darrin Duling commented on topic "test" by Darrin Duling
  4. Mo Chen commented on member plant Den. longicornu by Mo Chen
  5. Yahoo Alex commented on member plant Habenaria Tanager by David Nickerson
  6. Adam Almeida commented on member plant Chz. Hsinying Pink Doll 'Hsinying' by Melvin Waki
  7. Alex Maximiano commented on member plant V. Boschii by Adam Almeida
  8. Carol Holdren commented on member plant Ar. graminifolia by Adam Almeida
  9. Melvin Waki commented on member plant Pol. neobenthamia by Adam Almeida
  10. Melvin Waki commented on member plant Hwra. Lava Burst by Jeanne M Uzar
  11. Carol Holdren commented on member plant V. Nopporn White Diamond by Adam Almeida
  12. Melvin Waki commented on member plant V. Yip Sum Wah 'Flame' by Tanya Lam
  13. Tanya Lam commented on member plant Gra. stapeliiflora 'Waki' by Melvin Waki
  14. Gustavo Sánchez commented on orchid Lc. Blue Rose
  15. Carol Holdren commented on member plant Aerdv. Somsri Sunlight by Mary Lane
  16. Tanya Lam commented on member plant Cym. finlaysonianum by Tanya Lam
  17. Alex Maximiano commented on member plant Lc. Dinard 'Blue Heaven' by Melvin Waki
  18. Carol Holdren commented on member plant Rth. Yellow Bouquet 'Pam' by Melvin Waki
  19. Carol Holdren commented on member plant V. falcata var. Hisui by Tanya Lam
  20. David Nickerson commented on member plant Ctsm. Edgardo A. Pauneto 'Dark Stripes' by David Nickerson