FOR BEST RESULTS SPRAY YOUR DAHLIAS 
PESTS 
SUCKING INSECTS 
THRIP, LEAFHOPPER, TARNISH BEETLE 
(Very severe through midwestern and south- 
ern states from July until October. Blast young 
buds and prevent bloom.) 
RED SPIDER 
(Only under hot, dry conditions in most sec- 
tions of the country.) 
GRASSHOPPER 
(Midwest, west and southern states.) 
JAPANESE BEETLE 
(Eastern states.) 
EUROPEAN CORN BORER 
(Eastern states.) 
SPOTTED CUCUMBER AND 
BLACK BEETLE 
(Prevalent in mid-summer.) 
STEMBORERS 
(Midwest, east and western states.) 
\ 
MILDEW 
(Prevalent in gardens having poor circulation 
also in cloth houses.) 
THRIP-LEAFHOPPER, TARNISH BEETLE 
CONTROL 
Wash plants with garden hose in even- 
ing to dislodge the insects. Spray with “Hitox” 
which contains rotenone and pyrethrum. For 
leafhopper, rotenone dust may be used, follow 
directions on can. Begin spraying when plants 
are one foot high, spray at least once a week 
until October. 
Spray with pyrethrum, soap and water, 
Red Arrow or Hitox. Spray plants frequently 
with cold water using a garden hose. 
Poison bran; (brown sugar, Paris green 
and bran mash). Cloth or screen wall around 
garden about 7 feet high. 
Any pyrethrum and rotenone spray, fair- 
ly heavy concentration. 
A bulletin, “Protection of Dahlias from 
Corn Borers”, is issued on request by: U. S. . 
Dept. of Agriculture, Bureau of Entomology 
and Plant Quarantine, Washington, D. C., 
Brush insects from bloom into a shallow 
pan of kerosene. 
Presence of Borers is usually revealed by 
the wilting of the lateral or branch of the 
plant. Cut off the wilted branch and slit the 
stem. Should the plant be too large use a 
strong concentration of pyrethrum and inject - 
with an eye dropper. Stalk should be drained 
at bottom to prevent rot. Sometimes during 
heavy rains in July and August the plant will - 
wilt from too much water in the stem. This 
is easily drained out by piercing the stalk 
with a knife at the base of the plant. 
Spray with Bordeaux mixture, following 
directions given on package. Dust with fine 
sulphur. 
Tartar Emetic and brown sugar has prov- 
en to be a very effective bait for leafhopper. 
The Tartar Emetic acts as a stomach poison 
and should be mixed as follows: 8 lb. of sugar, 
1 lb. Tartar Emetic. This makes 50 gal. of 
spray. 
Thirty-four 
