Category: Orchid Doctor

VANILLA: Root Rot

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Fusarium batatis var. vanillae is a destructive disease attacking Vanilla planifolia in commercial growing areas; refer to AH19 Read More

VANILLA: Species to Be Grown Commercially

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago In the Caribbean area Vanilla planifolia is the commercial choice of several found there; for advice see The orchids, a scientific survey, ed. by Carl Withner (1959) A84-1306 Read More

VANILLA: Time to Harvest

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago When the tips of the pods show yellow about 1/4 inch; 125 pods. A76-115 Read More

VAPONA FUMES: In a Greenhouse Where Furnace Is Located

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Vapona is not explosive; used in the form of Shell No-Pest strips. A73-409 Read More

VAPONA FUMES: The Safest Insecticide, Against Scale

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Shell No-Pest strips were formulated for use in the home; vapona can be volatilized one fl.oz. of the 41-43% material per 10,000 cu.ft. of greenhouse space; it does not accumulate in mammals; Cygon... Read More

VAPONA STRIPS: As An Insecticide

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Their effectiveness for pest control indoors is vouched for. OIE85My-14; caused skin rash. OIE88Apr-9 Read More

VAPOR BARRIERS: Paints to Apply to Concrete Blocks

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago They are asphalt-based and rubber-based and are satisfactory, but damp walls in a greenhouse are beneficial in maintaining humidity so why use them? A66-927 Read More

VARIANTS: Definition

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Characteristics that are distinct and useful to the breeder in one way or another, such as time of flowering, size of flowers, variation in color, shortness of peduncle; it is a combination of gene... Read More

VARIETAL NAMES: Or, Cultivar Names

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago An additional, non-registered name given to a specially selected clone to call attention to its superior quality; the name is written in single quote marks. OA77-49 Read More

VARIETIES: Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A group of organisms within a species that differs from the other members or groups in one or more minor characteristics but not enough to justify a new specific epithet. ODA72-135A variety is a we... Read More