Category: Ailments

INSECTICIDES: Not Effective

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Insects may have become resistant to a particular chemical, so speak to your agricultural agent; the chemical may have bben on the shelf too long as they sometimes deteriorate rapidly; the pH of th... Read More

BLACK ROT: On Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Control with Truban or Dexon-35; Truban is gaining favor over Dexon-35; drench or soak in 1 tpg. A72-341; A75-680; A79-1112; use Tersan or Fermate. S198 Read More

INSECTS: Control in Greenhouse by Predators

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Use of Lady-biEd beetles and Praying mantis claimed to be successful; refer to A69-606 Read More

INSECTS: Control with "safe" Insecticides

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Leftover tobacco from cigarette butts has eliminated springtails (without regard for virus); rotenone and pyrethrum are sometimes considered harmless to warm-blooded animals; but note, this is hard... Read More

INSECTS: In Florida

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago For a four-page list of arthopods (insects, arachnids) reported found on orchids, refer to DK25+ Read More

INSECTS: Resistance and Persistence

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago For reasons why insecticides become tolerated by insects, refer to OD69-309+ Read More

INSECTS: Small Flying and Leaping Insects

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A control for those found on plants left indoors during the summer: Cygon 2E, 2 tpg. as a heavy spray on medium surface. A74-595 Read More

CYMBIDIUMS: Mutations in Meristem Propagation

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Occasionally one occurs which produces a non-blooming strain, accompanied by an easily recognized grassy type of growth. OA83-114 Read More

CYMBIDIUMS: Symptoms of Phosphorous Deficiency

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Plant won't bloom; lack of phosphorous causes delay in reaching maturity. OD71-278 Read More

PESTICIDES: Shelf Life

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