Category: Ailments

MITES (GENERAL): Cymbidium Spray Control

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Spray with miticide any new plant added to the collection; spray them all in early summer and then again in the fall. OA78-167 Read More

SALT, TABLE: Brine in the Well Water

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It can be countered by raising the calcium content with powdered gypsum, at one teaspoon to five gals. water. A79-124 Read More

LEAF BLIGHT: Also Known as Leaf Die-back, Tip Burn

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Caused by fungus invasion; spreads gradually through leaf; cut it out before treating; infected areas show watery before drying; control with Benlate, or Anti-Damp, or Tersan. RMH Read More

MEALYBUGS: Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago An insidious pest; recommended controls are many but their effectiveness is in doubt; try Malathion, Sevin or Cygon 2E with the last named the most effective, if under a cloud; it lasts four to six... Read More

MITES (GENERAL): Finding Them

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Look initially for silvery damage under the leaf where the cell juices have been sucked out, in patches or in a general area; compare a new leaf with an old one; use a hand lens to be certain. OA71... Read More

MITES (GENERAL): In the Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Soak or drench the pot with an all-over spray of Pentac 50%WP at 2 tpg. A79-1112 Read More

MITES (GENERAL): Controls, in Increasing Degrees of Toxicity to the User

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Chlorobenzilate (6oz. required for LD-50) aramite (4oz.) kelthane and dimite (loz. the most lethal);Ethion (too toxic at 1/2 oz.) and Demeton (extremely toxic at 8 drops) are not recommended. A68-5... Read More

MITES, FALSE SPIDER: Spraying with Kelthane as Control

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Believed to have stunted some phalaenopsis plants; two tpg. could not cause the injury; perhaps three tpg. might do so,but unlikely; cause not certain. A74-792 use liquid 1 tpg.or powder 1.5-2 ttpg... Read More

MITES, ACARID: Fungus Mites, Their Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago They feed on fungi, debris, organic decay and sometimes on flowers where they cause brownish discoloration; use good sanitation. AH4; N327 (see also Fungus gnats) 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