Newly Posted Articles

MITES, TWO-SPOTTED: Characteristics and Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 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 over 7 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

FLASKING: Air Supply to Seedlings

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago For cymbidium seedlings in flask, air exchange must always be provided. OA84-126 Read More

LEAVES: Old and Browning

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Caused by old age or root injury. A78-226 Read More

SEED PODS: How Long to Ripen on the Plant

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Cattleyas take from-nine to 13 months; phalaenopsis six to eight months; vandas the same; paphiopedilums and cymbidiums nine to 12 months. A74-595 Read More

SCALE (GENERAL): Control

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Besides Cygon 2E, Temik will kill scale except on flowers, but a permit to use is is necessary. A77-995On cymbidiums, is best achieved with Cygon 2E at 2 tpg.; or with Diazinon 50%EC at 1 tpg; Mala... Read More

SCALE (GENERAL): Characteristics and Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago There are two groups, the soft scales and the armored scales; different species require different controls; species common to California described; refer to AH6+; N328+; S192 Read More

SCALE (GENERAL): Control Experiments

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Foliar application of seven insecticides was tried on vandas for control of proteus scale, and on cattleyas for control of boisduval scale; dimethoate (Cygon) provided a complete control; phytotoxi... Read More

SCALE INSECTS: Control

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago In Hawaii, use Diazinon WP or EC (emulsifiable concentrate) as a spray; use Malathion, or Cygon 2E. P69(l)-ll Read More

PSEUDOBULBS: Twisted Bulbs on Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago These can develop for no apparent reason, except that water lodging in immature growths may be the cause. A85-832 Read More