Dithane Z-78 (zineb, zinc ethylene bisdithiocarbamate). A wettable pow
der easier to use than D-14 (no other ingredients needed) and
about as effective although giving slightly more conspicuous residue. For
azalea flower blight use 1 tablespoon to a gallon of water and spray 3
times a week, starting when midseason varieties are coming into bloom.
This also controls downy mildew of cucurbits, rose black spot, and re
duces fire blight when sprayed on fruits at 10% bloom and at full bloom
DN sprays and dusts (Dinitro compounds, Dow Chemical Co., Mid
DORMANT SPRAY. One applied while plants are in dormant or winter con
dition but preferably just before buds break. A delayed dormant
spray is used for fruit trees from the time buds are silvery until green
tips are "size of squirrels' ears." Miscible oils, lime-sulfur, or dinitro com
pounds are used for dormant sprays.
D & P Fruit Spray (DDT, rotenone, ziram, and sulfur, Doggett-Pfeil
Co., Springfield, N.J.). A combination spray for backyard fruit
DREFT. Household detergent used as a spreader, 1 teaspoon to 3 gallons.
Du Pont Floral Dust (methoxychlor, ferbam, sulfur 26%, rotenone, E. I.
du Pont de Nemours & Co., Wilmington, Del.). There is not
enough sulfur to control rose mildew, and special sprays will be required
for aphids and mites, otherwise it controls most enemies.
Du Pont Fruit Tree Spray (methoxychlor, ferbam, sulfur). Should con
trol apple scab, brown rot, codling moth and other chewing insects
but not aphids.
D-X Aero Spray (aerosol formulation of pyrethrum, rotenone, and pi
peronyl cyclonene, B. G. Pratt Co., Hackensack, N.J.). Chemicals
are under pressure in a small container useful for treating house plants
for aphids, mites, whiteflies, mealybugs, thrips (but don't use on lantana,
maidenhair fern, or cyclamen).
D-X Insect Spray. Same as D-X Aero Spray but prepared for regular out
Elgetol (sodium dinitro-o-cresolate, Standard Agricultural Chemicals,
Inc., 1301 Jefferson St., Hoboken, N.J.). A dormant spray to kill
aphid eggs, euonymus scale, and to eradicate apple scab fungus wintering
in old leaves on ground.
End-0-Pest Garden Dust (rotenone, phenothiazine, ziram, sulfur 15%,
Swift and Company, Chicago, 111.). Controls many rose enemies
but not mildew.
EPN 300 (Nitrophenyl thionobenzene-phosphonate, E. I. du Pont de
Nemours & Co., Wilmington, Del.). A phosphate miticide, some
what less toxic to man than parathion.
ETHYLENE DIBROMIDE. A soil fumigant for nematodes, sold as Garden
Dowfume and Soilfume-caps for small garden use.
Evergreen Garden Spray (pyrethrins, mineral and pine oil, alkyl aryl
sodium sulfonate, McLaughlin, Gormley, King Co., Minneapolis,
Minn.). A pyrethrum spray, quick kill for many sucking and some