Category: Ailments

ROTS: Fungus or Bacterial

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Systemic controls that are recommended for use on seedlings or mature plants include such names as Benlate and Difolatan especially for fungal problems; Black rot and Brown rot are both caused by b... Read More

ROTS: Pseudobulbs

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Bulb rot or black rot is caused by Pythium and Phytophthora, which are closely related soil-inhabiting fungi whi ch spread under warm wet conditions and can be splashed about with a hose; try to ap... Read More

RUSTS: Uredo Nigropunctata

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Occurs infrequently in Florida; it forms conspicuous irregular orange and black pustules on both surfaces of the leaves; cut them off and destroy them; try ferbam at 1.5 ttpg. weekly, or Plantvax 7... Read More

RUSTS: Uredo Oncidii

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Many plants are attacked; it produces powdery masses of yellow to yellow-orange spores; spreads easily; weakens plants; treat with a copper-containing fungicide, or Tersan; N319 (as Hemeleia americ... Read More

SCALE INSECTS: Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago In Florida, they are soft or armored scales; seven types described; Mealy bugs described; five different controls given; refer to DK2+ Read More

SCALE INSECTS: Characteristics and Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago They suck the juice of tissues; some produce a toxin; spots where they extract juice become yellow; they tend to congregate at joints and under sheathing leaves but are also found on open areas and... Read More

SCALE: On Vandaceous Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Use Orthene Tree & Ornamental spray which is a soluble powder, at two tablespoons to three gallons of water; or, Malathion at one tpg,, and at several intervals. A85-817 Read More

SCALE: Types, Damage and Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Possibly the most common orchid pest, whi ch because its size, numbe rs and habi ts are conspicuous; they attach themselves to the plant and suck the juices; some are believed to exude a toxic and ... Read More

SEPAL WILT: Cigarette Smoking in the Home

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Ethylene polluted air in the home gave short-lived flowers; after stopping smoking, longer lasting, larger blooms were realized. A74-134 Read More

SPRAYS: Combination

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A mix of fertilizer, Cygon 2E and Benlate is not recommended because amateurs are inclined to use pesticides in excess and chemical toxicity problems are frequent with amateurs; many top growers do... Read More