Category: Orchid Doctor

MAGNESIUM SULPHATE: Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is a key element, instrumental in the formation of chlorophyll and plant fiber. OA78-51It is the only mineral to appear in the chlorophyll molecule; vital to green plants for photosynthesis. AU7... Read More

MAGNESIUM SULPHATE: Epsom Salts

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Can be applied twice a year to cymbidiums grown in full sun in California; it aids in photosynthesis and helps the plants to withstand the heat of the bright sun. OA87-93 Read More

MAGNESIUM SULPHATE: Optimal Amount to Apply

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago 25ppm, which is low, can be applied to cymbidiums and phalaenopsis. SA85Dec-168 Read More

MAGNESIUM SULPHATE: Purpose in Plant Nutrition

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is an essential and serves the same purpose in the plant as iron in the human blood stream; dolomite lime has some in it; also know as Epson Salts, it can be applied at the rate of one pound per... Read More

MAGNESIUM SULPHATE: Supplementary Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago One teasoon spread around the top of an average sized pot is sufficient in the summer months; it can also be applied as a spray, Au87 Read More

MALATHION: Combines with Fungicides

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Both Benlate and Manzate can be combined with it. A73-991 Read More

MALATHION: Effectiveness on Spider Mites Questioned

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The residual action is short-lived, but with a wetting agent the spray is effective when used repeatedly to break the mite cycle; other better miticides are available. A76-1007 (see Miticides) Read More

MALATHION: Insecticide/miticide

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A stomach and contact poison; recommended for springtails, red spider mites, aphids, mealy bugs, ants; apply at 1 ttpg. weekly; has an LD-50 of 880 mg. A71-894; OD65-168 Read More

MALATHION: Insects Apparently Immune

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Try adding a wetter-sticker at the rate of 1/2 tpg. to the Malathion spray of 1.5 tpg. A75-500 Read More

MALATHION: Never Take it for Granted

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The most frequently recommended insecticide but do not take it for granted; it is a poison; it will harm some flowers; it will spot some masdevallias; drops of the spray produce burns on cattleyas,... Read More