Category: Orchid Doctor

VANILLA: Root Rot

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 10 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 almost 10 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 almost 10 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 almost 10 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 almost 10 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 almost 10 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 almost 10 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 almost 10 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 almost 10 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 almost 10 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