Newly Posted Articles

BROWN ROT: Erwinia cypripedii

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Attacks paphiopedilums; bacterial brown rot starts as small roundish water-soaked yellow spots often in the middle of the leaf; changes to dark chestnut; may appear greasy; reaches growing point of... Read More

CRESTLITE (TRADE NAME): (trade Name) in Cymbidium Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago It is calcinated clay, the size of small pebbles; an industrial compound. OA79-168;-171 Read More

SHIPPING PLANTS: Cross Country

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago From Pennsylvania to California plants were sent via UPS Air, whi ch is recommended; it is necessary to get a U.S.D.A. inspection clearance so plants will not be held on their arrival. A87-165 Read More

SHIPPING PLANTS: Flasks of Seedlings

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Never order flasks to be shipped by mail, even air post; they get jumbled up in the media; ship bare root. FR128 Read More

PAPHIOPEDILUMS: Hard, Strap-leaved Types

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Patience is necessary to get these to flower, including: P.bodegonii, haynaldianum, rothschild- ianum, parishii, lowii, philippinense, etc.; most of which produce good root systems; they like 55 dF... Read More

WOOD PRESERVATIVES: Injury Causes in the Greenhouse

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Creosote should never be used inside or outside a greenhouse; penta (Pentachlorophenol) should never be used either; it cannot be removed, but it can be covered; use a coating of linseed oil follow... Read More

ORCHIDS AFTER OWNER'S DEATH: Think About it Now

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Add a codicil to your will; request your local orchid society to sell your plants at a commission, with the proceeds to go to your family estate. A66-808 Read More

ODONTOGLOSSUMS: Footcandles of Light Required in Summer

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago At 9:00 A.M.: l,000fc.; 12:00 noon: 1,200 to l,300fc; 3:00 P.M. :600fc; 5:00 P.M.: 500fc. OD71-88 Read More

ORCHIDS: Description

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago They are monocotyledons, the flowers have three sepals, two of which may combine to form a large dorsal sepal as in paphiopedilums, and three petals, two of which are alike and one modified into a ... Read More

CYMBIDIUMS: Blooming Frequency From the Same Bulb

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Most modern hybrids will bloom a second time from a green bulb but rarely for a third year. C71-199 Read More