Newly Posted Articles

PESTICIDES: Temperatures At Which it Is Hazardous for Humans to Work with Them

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Above 85 deg.F. in the afternoon it is best not to work with them. OD75-162 Read More

DAMP-OFF: Of Seedlings, Control

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Mix 1 teaspoon Truban and 2 teaspoons Benlate per gal. of water; will control all forms of damping-off; Benlate alone misses one of the most common forms. A73-1081 Read More

JUDGING: Awards Listed

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago For AOS awards, with descriptions, growers,etc., plus occasional evaluative or critical articles on the judging process, refer to AOS Awards quarterly, 1970 to date. Read More

APHIDS: Description and Activity

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago No controls given, refer to AH86-56 Read More

CHYSIS: Broad Leaves Have Infection with Tan Moist Lesions

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago The lesions are not controlled by Natriphene or Physan; use Benlate 1 ttpg. as drench over everything; or, Banrot 2 ttpg. in same way. A76-206 Read More

DEADLINE: Slug and Snail Control

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A "sure eliminator" according to the promotion ; recommended ; source given. OIE85Nov-8 Read More

PH OF WATER: Sulphuric Acid Used to Reduce Ph to 5.6

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago The long range effects are none if pots are leached with every watering; orchids tolerate good amounts of sulfates. A75-500 Read More

PH METERS: Electronic Type

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago How do they work? -- place a small amount of potting bark or tree fern in water enough to moisten the medium and the electrode or probe and test. A81-688 Read More

PREDATORS: Phytoseiulus Persimilis

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is a mite which controls two-spotted mites in the greenhouse, on such as cymbidiums; they are active and voracious and effective, but it tends to die out through lack of prey, therefore it has t... Read More

JEYES FLUID: Disinfectant

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Registered for soil conditioning in the U.K. it is used as a spray against such orchid pests as black spot, red spider mite; is useful for eliminating slugs and snails; has been tested on cymbidium... Read More