Category: Orchid Doctor

MITES, TWO-SPOTTED: Characteristics and Control

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Tetranychus urticae is pale greenish or yellowish with a dark spot on each side; spun webbing on underside of leaves is apparent in heavy infestations; is large enough to be seen by the naked eye; ... Read More

MITES, TWO-SPOTTED: Characteristics and Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They are pale green or yellow with a dark spot on each side on the back; webs appear when the mites are numerous; control them with registered miticides for your area such as Azodrin, Kelthane, Met... Read More

MITES, TWO-SPOTTED: Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago More harm is likely to be done to plants by the use of liquid formulations than by the wettable powder types. NZ86-103 Read More

MITES, TWO-SPOTTED: Spider, or Red Spider Mite

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They may be green, orange, pale yellow or red; the stippling is either whitish or brownish; damage is done on the underside of the leaves, with puncture wounds; sometimes the wounds acquire a water... Read More

MITES, TWO-SPOTTED: The Life Cycle

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago As temperature rises in the summer above 50 dF, the incubation period is reduced from 21 days at 60 dF to 6 days at 90 dF and their numbers increase in geometric proportion; use Kelthane (if you ca... Read More

MITES: Biological Control

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Most cymbidium nurseries use the predator mite Typhlodromus occidentalis, or Phytoseinlus persimilis for control and reports are mainly in favor. Au88-13 Read More

MITES: Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Kelthane is a constituent of several available sprays (possibly now banned in some areas); a contact spray, it should be applied to the underside of foliage; as mites have a four day cycle it is vi... Read More

MITICIDES: Kinds Available

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Malathion is recommended but far better is Pentac, a specific for mites and about the safest of all to use; also recommended are: Cygon 2E, Diazinon; Kelthane. A76-1007; OD70-155 Read More

MITICIDES: Most Widely Used

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Vendex, has low toxicity to humans, claims are made that it kills the spider mites as larvae, chrysalis,eggs, insects; Pentac, relatively safe with long residual action; Kelthane, where obtainable;... Read More

MITICIDES: What's Recommended in 1987

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Kelthane is off the U.S. market and Metasystox is restricted in some states of the U.S.; a "soap" may be the answer for some. A87-1174 Read More