Category: Ailments

PESTICIDES: Recommended Names

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago For a list of 22 substances usually used in greenhouses, with their LD50 rating, and useful notes, refer to N314 Read More

PESTICIDES: Types Included in the Word

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago Algacides, biological pesticides, fungicides, herbacides, insecticides, molluscicides (snail baits) and rodenticides; many of these names are entered in this book. AU87(3)-45; RMH Read More

PESTICIDES: Storage

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago Emulsifiable concentrates and most liquids should be stored above freezing; if properly sealed they should remain effective for two years; do not use if the emulsifiable concentrate does not turn "... Read More

PESTS AND DISEASES: Bacterial, Fungal, Viral

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago For an extended and timely treatment of pests, rots, fungus, virus, with colored illustrations for identification, symptoms, controls, etc., refer to A82-237; 382; 479; 593; 719; A86-1027;also OBIV... Read More

PETAL BLIGHT: Botrytis

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago It is common during cool, damp weather, with poor air circulation; most harmed by it are cattleya and phalaenopsis flowers; destroy all infected blossoms quickly, spray with benomyl (Benlate 50W) a... Read More

PETAL BLIGHT: Caused by Fungi Other Than Botrytis

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago 16 other fungi have been found as causes; many are saprophytes living on decaying leaves, flowers, potting mixes; all such must be removed from under benches and bench tops; periodical spraying of ... Read More

ALGICIDES: Condensation Drip From Air Cap Insulation Promotes Algae

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago To render drip harmless spray with Physan 20, 1/2 tpg. A79-124 Read More

BROWN COAL: Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago Appearance is hard, solid pieces of peat, nearly brown coal in nature; keep their shape for some time, form an airy potting ball. A75-208 Read More

BEETLES: Black Twig Borers

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago Dendrobium beetles in Florida; treat with Diazinon or Sevin. AH86-56 Read More

PESTICIDES: Shelf Life

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago They should be purchased for short-term use; mark the date of purchase on the container; most keep their effectiveness for two or more years if stpred properly; signs of ineffectiveness in dusts an... Read More

Ailments

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Angraecoids

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Announcements

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Beginners

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Book Review

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Bulbophyllums

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Cattleya Alliance

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Conservation

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Culture

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Curiosity

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Cymbidiums

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Dendrobiums

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General Discussion

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Oncidium Alliance

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Orchid Doctor

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OrchidWiz

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Other Genera

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Paph Alliance

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Phalaenopsis

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Pleurothallids

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Propagation

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Scientific

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Site Navigation

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Species

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Vandaceous

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