Category: Orchid Doctor

METHYL BROMIDE: Used to Sterilize Osmunda with Weed Seeds in It

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use a 50 gal. steel drum with an air-tight lid; place the osmunda in it and add one pound of methyl bromide, observing all precautions; seal for 48 hours; open and led the odor disappear before usi... Read More

MICE: An Orchid Pest

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They chew the plants at night, remove the pollen from the best blooms; control by the usual setting of traps or mouse bait, such as Bromol, whieh contains Bromadiolone 0.005%. A82-352;RMH Read More

MICE: In Greenhouses

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They eat the pollen and cause flowers to change color; they eat pollen sacs of cymbidiums and sometimes parts of the flowers; they also eat pollen of cattleyas and phalaenopsis; control them with b... Read More

MICROCLIMATES: In Greenhouses

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Nearly every growing area has them; in most greenhouses there is a cooler level at the bottom and a warmer area at the top. ODA76(3)-6 Read More

MICROCLIMATES: Variability of Temperatures in a Small Greenhouse

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use several thermometers in addition to a high-low type to check degrees; it is warmest at the top, cooler under bench; (generally); variations occur according to the distance from the heat vents i... Read More

MICROFUNGUS INFECTION: In Phalaenopsis

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It looks like virus, like so many other things that aren't, it causes necrotic leaf spot depressions; to.fight it you first dampen the compost of the pot, then you drench the whole thing in Subdue ... Read More

MICROMAX: For Trace Elements

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A commercial product which can be added directly to the potting mix. OA87-93 Read More

MILLIPEDES: Are They Beneficial?

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The best plants came from a corapot in which four of them thrived; maybe their excrement is utilized by the seedlings. OIE-86Dec-15 Read More

MILLIPEDES: Characteristics and Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They feed on decaying organic matter, sometimes they feed on roots, especially of seedlings; their presence causes the media to break down early; use a pot drench of Diazinon; it has no phototoxici... Read More

MILLIPEDES: Control in Potting Media

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use 2 ttpg. Diazinon 25% liquid concentrate applied as spray. A73-409; use Diazinon definitely; the wettable powder (WP) form is less likely to cause harm to plants at 2 ttpg, A79-4 Read More