Dictionary of Pesticides

Tri-ogen (lead arsenate, rotenone, pyrethrins, ferbam, ammoniacal copper complex, Rose Manufacturing Co., Beacon, N.Y.). This spray comes in 3 containers, the ingredients to be measured and diluted only at the time of spraying. The 1953 version, which also contains a miticide, should control aphids, rose-slugs, beetles, red spiders, powdery mildew, black spot, and rose cankers. It may not be so good as DDT for leaf hoppers, and if they get too numerous or if midge appears DDT can be added to the spray. This combination spray can be used on many ornamentals in the garden besides roses and is safe in hot weather.

Tri-ogen Dust (DDT 5%, lindane 0.5%, ferbam3.5%, sulfur 20%, p,chlorophenyl,p,chlorobenzene sulfonate 1%). Note that the dust formula differs from the spray. It will not control powdery mildew for there is no copper and not enough sulfur.

Vapotone XX (TEPP, California Spray-Chemical Corp., Richmond, Cal.).

Volc\ Greenhouse Spray (summer or white oil emulsion, California Spray-Chemical Corp.). This can be used on most house or garden plants, usually a 1 to 50 dilution to control scales, mealybugs, and other hard-to-kill sucking insects. For camellias and azaleas in the South it is often in the special Florida Volck formulation.

Wilson's Grub Controller (DDT and chlordane, Andrew Wilson, Inc., Springfield, N.J.). For treating lawns for chinch bugs as well as beetle grubs.

Wilson's O.K. Plant Spray (potassium oleate, oil of citronella, nicotine, Andrew Wilson, Inc.). A pleasant way of applying nicotine; no additional soap or spreader is needed.

Zerlate (ziram, E. I. du Pont de Nemours & Co., Wilmington, Del.).

ZINEB (zinc ethylene bisdithiocarbamate). See Dithane Z-78, Parzate.

ZIRAM (zinc dimethyl dithiocarbamate). A white powder, sold as Zerlate or Karbam White, effective in control of early blight of tomatoes, celery blight, and some other vegetable diseases.




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