Sprays |
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SPRAY EQUIPMENT: Rinsing Materials
Use plain water first on the equipment after it has been used; then use household ammonia at one part to five or ten parts water; then lastly plain water. A78-1124
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SPRAYS: Against Fungus and Bacteria
Physan 20 appears to be an effective bactericide, and it also kills some fungi; the most effective fungicide is Benlate; could be used in a program several times a year. A76-698
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SPRAYS: Combination
A mix of fertilizer, Cygon 2E and Benlate is not recommended because amateurs are inclined to use pesticides in excess and chemical toxicity problems are frequent with amateurs; many top growers don't apply fungicide over all their plants, only insecticides and miticides because pests are ubiquitous. A73-807
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SPRAYS: Dormant
Recommendable types do not exist because they may well kill the plants; such sprays are intended for plants in dormancy in cold weather and there is no such orchid; use Malathion. A64-786
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SPRAYS: For Protection From All the Enemies
Generally speaking, all diseases can be controlled with Benlate, Truban or Banrot, and Mesurol. A81-27
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SPRAYS: Harmful
Aerosol white oil is possibly damaging to plants; it is 60% ingredient of some sprays; the temperature of such a spray may be too cold on contact with the plant; experiment first. AU79-197Small white spots on flower lips can be caused by Physan mixed with Benlate as a spray; illus. A77-435
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SPRAYS: Mix of Fertilizer, Benlate and Physan
Don't use it; use Benlate sparingly so resistance in pests does not build up; it does not normally need a wetter-sticker; Physan is primarily an algae spray. A82-1061
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SPRAYS: Regular, for Insects
Never spray unless it is necessary because preventative spraying is the best way to breed resistant strains. A87-616
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SPRAYS: With Xylene Carrier
The carrier can do more plant damage than the insecticide; malathion spray (standard) caused crown damage to lycaste and neomoorea; wettable powder malathion does no damage; but xylene is effective in conveying the insecticide to scale and hard-shell insects. OD75-22; absolutely wrong; xylene in sprays is not damaging. OWD
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