Newly Posted Articles

BARK, REDWOOD: Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Shredded bark used as insulation material and sold as Palco Wool was treated with fire-retardant ammonium phosphate which caused remarkable growth of plants. A87-1041 Read More

REST: For Dendrobiums

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago As exemplified by D.Gatton Sunray, after growth is comple ted in the Fall, allow the plant to dry for four or six weeks then give it a good soaking; if shrivelling of canes does occur in the meanti... Read More

PH (GENERAL): Of Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago A pH8 to 9 of the 30-10-10 fertilizer is natural and should not be adjusted because the alkaline state changes to the acidic side when used by the plant. A81-27 Read More

ANTHRACNOSE: Leaf Spot

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Leaves develop circular or oval sunken spots, which are reddish changing to dark brown or grey; for controls use Captan or Benomyl at 1 ttpg. AU85(4)-31Many genera are affected by Gloeosporium and ... Read More

ANTI-DAMP: A Fungicide and Bactericide

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Use as spray, drench or soak for several hours; concentration 1:2000; for community pots and mature plants; has LD50 of 1200. A73-810; N110,117 Read More

ANTI-TRANSPIRANTS: Use After Repotting

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Apply Wilt-Pruf, Folicote or similar product to prevent loss of moisture from plants, avoid getting any on the roots, be sure to coat undersides of leaves also; apply with small brush or spray. OIE... Read More

LIPS: Abnormal Coloration

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Rose or reddish pigmentation occurs in cymbidiums and epidendrums in response to pollination or pollen removal; mice remove pollen; removal frequently hastens the ageing of the flowers. A67-569+; A... Read More

LOAMITE: A Forest By-product

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago It was ground, charred, impregnated with some nitrogen and used in potting mixes. A66-992 Read More

LOAMITE: Looks Like Sawdust

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Treated with acid to carmelize the lignins; breaks down about 10% per year; no longer (1974) made; sponge rock is one substitute; perlite is another; other possibilities mentioned; refer to C74-21 Read More

BENLATE: On Paphiopedilums

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Caused production of infertile pollen. A79-898 Read More