ALGAE: Control on Surface of Potting Medium

Ailments Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin almost 5 years ago.

Article Blog   Article Index
Use 1.5 ttpg. of Maneb (Manzate) as heavy spray. A73-409
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Algae

Algae Comments
ALGAE: Control Use Physan 20, at the rate of 1/2 tpg. A78-495 0
ALGAE: Control in Cattleya House Physan 20 may be too expensive; Phygon is cheaper for use on evaporative cooling pads. A74-969 0
ALGAE: Control in Growing Trays After watering plants, rinse the tray grave1 if possible and allow grave 1 to dry fully to kill algae; repeat periodically; or, spray grave 1 with Simazine 80W, 1 tpq. A70-535 0
ALGAE: Controls When it occurs in a humidity tray holding water and pebbles, pour in a little chlorine (household bleach), let it remain for a while then decant and ventilate; or, use neutral copper. A86-929 0
ALGAE: In Osmunda Under Lights Usually caused by heavy organic fertilizers plus high humidity; harmful only if it excludes air from roots; use Physan 20. A79-910 0
ALGAE: In Pots Use of Bioquin satisfactory,address given; Manzate (Maneb) fungicide controls algae; use 1 ounce to 4 gals. water; various basic copper fungicides also control algae. A73-888; no safe algecide known. A77-1101 0
ALGAE: In Rainbarrel To destroy it add some sodium hypochlorite, then aerate to free the chlorine; exclude light by covering barrel with black polyethylene. A67-579 0
ALGAE: Interior of Greenhouse Wash off with soap and water, spray every few weeks with household bleach which does not harm plant materials but can harm the skin, so wash it off, if necessary. OR82-102 0
ALGAE: In White or Clear Pots In areas of strong light algae grows inside plastic pots which are translucent; dark pots exclude light. A72-490 0
ALGAE: Its Effect on Plants Algae can be harmful to plants grown in clay or crockery pots by covering the roots, so wash it off the pots and water less. A81-688 0
ALGAE: On Plant Leaves Caused probably by too little light; low intensity of fertilizer on leaves promotes growth; it can cut down on photosynthesis. F68-187 0
ALGAE: On Potting Medium Surface Medium is 1 sand, 1 fir bark, 1 milled sphagnum; water well, then let the surface dry; syringe only in early morning. A77-527 0
ALGAE: On Stones in Tray Under Plants Humidity trays should be flushed with Clorox 20% solution and allowed to stand 15 minutes, then flushed again with water; replace the plants. A82-588 0
ALGAE: To Prevent Growth in Tanks Drain the tank; add Clorox 1 ttpg. and let stand one and a half hours; drain, replace with clear water. A65-53 0
ALGICIDES: Condensation Drip From Air Cap Insulation Promotes Algae To render drip harmless spray with Physan 20, 1/2 tpg. A79-124 0

New Topics

  1. Kim Loan T Nguyen asked question Brassolaeliocattleyamaianh in category General Discussion
  2. Paula Milano asked question Pot. Hawaiian prominence america red orchid in category General Discussion
  3. ETHEL HAY asked question Name of this orchid in category General Discussion
  4. Joe L asked question ID of this Oncidium? in category Oncidium Alliance
  5. Edward Zapata started topic Cymbidium Helen Bannerman in category General Discussion

New Comments

  1. Carol Holdren commented on topic "Brassolaeliocattleyamaianh " by Kim Loan T Nguyen
  2. David garcia commented on member plant Myrmecophilia tibicinis stromburgkia trumpet player by David garcia
  3. Carol Holdren commented on member plant Bc. Maikai by William Gorski
  4. Joe L commented on topic "ID of this Oncidium? " by Joe L
  5. Robert H. Findlay commented on member plant Sngl. macloughlinii by Nicholas Stein
  6. Carol Holdren commented on topic "Name of this orchid" by ETHEL HAY
  7. Carol Holdren commented on topic "Pot. Hawaiian prominence america red orchid" by Paula Milano
  8. Carol Holdren commented on topic "Mystery Orchid" by David Hickman
  9. Edward Zapata commented on topic "Lady Bug or dangerous bug" by John Small
  10. Wyatt Parker commented on member plant Zygopetalum var. Big Red One by Wyatt Parker
  11. Carol Holdren commented on member plant Renantanda Sunrise 'Prasongs' by Andrew Chan
  12. Carol Holdren commented on topic "Dendrobium No I’d. HELP!" by Rae Walker
  13. Carol Holdren commented on article "CATTLEYAS: Control of Blooming Time" by Robert M. [Bert] Hamilton (Compiler)
  14. Carol Holdren commented on member plant Lc. Nice Holiday 'Suntopia' by William Gorski
  15. Robert H. Findlay commented on topic "Phragmipedium Cape Sunset or Eric Young?" by Darrin Duling
  16. Robert H. Findlay commented on member plant Phrag. Ecuagenera Dream by Robert H. Findlay
  17. Tatjana Opekunova commented on article "CATTLEYAS: Reasons for Non-flowering" by Robert M. [Bert] Hamilton (Compiler)
  18. Carol Holdren commented on topic "Need ID, Please" by Oliver Quin Surco
  19. Sara D commented on member plant Phal. bellina var. Coerulea by Sara D
  20. Debbie Chase commented on topic "Identify This Orchid " by Debbie Chase