Newly Posted Articles

PSEUDOBULBS: Wrinkled

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Back bulbs three to four years old show the natural aging process; it is hastened by over-watering and poor cultural practices. A78-309 Read More

PSEUDOMONAS CATTLEYAE: In Cymbidiums

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Submerge the plant in Natriphene solution 1:2,000 or three-quarters of a teaspoon to a gal. of water; repeat in five to seven days. A66-204 Read More

DRAINAGE: Of Potting Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Kinds of materials: broken crocks, charcoal (not recommended), bark (larger pieces), pebbles, stones, volcanic rocks, styrofoam "peanuts" (packing material), etc. A78-303 Read More

DRAINAGE: Of Potting Mixes

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A fiberglass screening layer cut to fit the inside bottom of a pot prevents most creatures from crawling in through the drainage holes. OIE86Sept. Read More

DRAINAGE: Phalaenopsis Culture

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is second in importance to adequate light; if a plant dies in the second or third year, lack of drainage and aeration of the roots is the cause; bark eventually breaks down and denies air to the... Read More

EARWIGS: Control

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Dust surface of composts with lindane dust, or use lindane smoke; trapping is effective, use match boxes with litter inside; use orange peel halves containing grass or hay; use pots reversed on the... Read More

PSEUDOMONAS INFECTION: Of Phalaenopsis

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago An infection common in cattleyas and others; recognizable as clearly delineated sunken black spots generally confined to one leaf and not fatal; local swabbing with a modern control at correct solu... Read More

PUMICE: Agricultural Grade

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Suitable fertilizer for plants grown in it is 10-10-10; pumice is not like bark which requires extra nitrogen to produce good growth. A61-904 Read More

PUMICE: As Potting Media

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago For its characteristics, a clinical analysis, comparative data with fir bark and osmunda, its many advantages, refer to A61-17+; C72-70+ Read More

PH (GENERAL): Of Potting Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Experiments show that if a recommended medium is chosen the initial pH should cause no concern. Hort. revs. 1983-195 Read More