Newly Posted Articles

MITES, FALSE SPIDER: Characteristics and Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago They are barely visible; do not spin webs; Tenuipalpus pacificus; Brevipalpus australis, B.oncidii, B.obovatus; they cause discolored flecks and depressions; use Kelthane, or Diazinon sprays,,or Te... Read More

MITES, FALSE SPIDER: How They Become a Problem

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Infestations are usually an indication of bad cultural practices because they normally thrive under high light and dryness. A85-397 Read More

MITES, RED SPIDER: Cymbidium's Worst Pest

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It produces small white spots on undersides of leaves, they spread from leaves to flowers; are less active outdoors; water sprays indoors only keep them down temporarily; they can increase in great... Read More

MITES, RED SPIDER: On Cymbidiums

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Controls, etc.: for detailed instructions, cautions and recommendations, refer to A67-497+; OR74-228 Read More

DAMP-OFF: Control

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Spray Captan at 1 ttpg., or PCNB (Terraclor) at 1 ttpg. as pot drench; also Chinasol, oxyquinoline benzoate (Wilson Anti-Damp), or sodium-o-phenylphanate (Dowicide Ai, Natriphene, Sopp, or Topane) ... Read More

MITES, SPIDER: On Thin-leaved Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Cymbidiums, cycnoches, lycastes are susceptible; spray with Pentac at 2 tpg. every six or eight weeks; or, spray with Kelthane 25%WP at 1.5 ttpg. monthly, until clean. A72-1081 Read More

CYMBIDIUMS: Culture to Induce Spiking

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago "full-sun" treatment can be successful; give as much sun as possible in the summer including risk of sunburn and with more water and fertilizer, OD68-244The day-night temperature change must be 20 ... Read More

FISH EMULSION: Over-use

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago At 1 ttpg. and with weekly flushing with plain water overfertilizing cannot happen. A67-1095 Read More

FISH MEAL: Analysis

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Dry meal contains five to seven: percent moisture, 6.5 to 10 percent nitrogen (equivalent to ammonia 8 to 12%) and phosphoric acid 4 to 8 percent. A59-607 Read More

PUMICE: Definition

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A light, spongy stone thrown up by volcanoes. A75-712; RMH Read More