Newly Posted Articles

MEDICINAL USES: Around the World

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Orchids have been used from earliest times, for detailed geographical coverage refer to OBIII-84 Read More

ANTS: Attracted by Aphids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Control the aphids and the ants disappear. A72-807; in Florida, when ants appear check for scale, mealybugs or aphids. DK12 Read More

PESTICIDES: Phytotoxicity

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It appears in five ways: as burn, on leaf tip, on leaf margin, on leaf surface, or bud; as necrosis, which is similar to burn; chlorosis which is a yellowing or bleaching effect, such as spotting t... Read More

ANT-PLANTS: Ants Inhabiting Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Thought to be true symbiosis; some can be cultivated for long without ants; others rarely survive long without them; no evidence that ants are pollinators, list of 21 plants that harbour ants; refe... Read More

ANT-PLANTS: Ants in Schomburgkias (myrmecophilas)

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In cultivation the basal hole still forms; speculation that ants do the hollowing out of the pseudobulbs and/or the base hole has not been confirmed. AU79-211 Read More

BUDS: Turned Black on Cattleya Skinneri After Half-opening

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Probably caused by too much cold. A76-206 Read More

STEM PROPAGATION: In Vitro Phalaenopsis Show Dark Exudate on the Cut Surfaces

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The browning is caused by polyphenyloxidase and can be leached out best with sterile banana extract. A80-1141 Read More

PHYSAN: Bacterial Action

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Studies have shown that it has good action in combatting bacteria as compared with other agents, especially on the germs Enterobacter and likely Erwinia; considerations of associations with excreme... Read More

LIME: Pointers About it

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Composted fertilizers never contain it; it is always added to peat mixes in order to supply missing calcium; Rockwool and Oasis have no buffering ability for lime; the deficit of Calcium is reveale... Read More

ANGRAECUMS: Minimum Optimums

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago 55 degrees F. at night; 50% relative humidity; 2,000 fcs. winter, 4,000 fcs. summer. AU71-135 Read More