





q i * , 
Tremendous improvements have been made in pest control ma- 
terials—during and since the war. We list the following which 
represent the latest and best developments. 

FREE—descriptive pamphlets covering insecticides, weed killers, fungi- 
cides (for disease control) and seed disinfectants will be sent upon re- 
quest. Please state what you wish to control. 
FR aT aR dA PION ct eels Red RU SSD ee RPL Mo ans OR SE Pa Lee 
DDT No. 50 
A wettable powder especially prepared to mix readily with water 
for spraying. Contains 50% DDT. This high content makes a 
spray leaving minimum visible residue which is an advantage on 
many crops. To use on crops mix 1 to 2 pounds to 100 gallons of 
water. 
Effective against: Codling moth on apples, Colorado potato 
beetle, potato leafhopper, potato flea beetle, cut worms, corn 
borer, corn earworm, cabbage worm, pea weevil, lygus bugs, bean 
leafroller, velvet bean caterpiller, thrips, tomato fruitworm and 
tomato pinworms. Will kill cucumber beetle, pickle worm, and 
melon worm but not recommended for use on these crops as it 
will stunt growth of the vines. Use Marlate instead on cucumber, 
cantaloupe and watermelon vines. DDT leaves residue on the 
plants, clinging to the surface in the form of fine crystals, some- 
times remaining active for weeks. 
CAUTION—Care should be taken to avoid leaving DDT residue 
on fruits and vegetables unless these can be thoroughly washed 
before eating or on which no spray has been applied for 2 or 3 
weeks. DDT is harmful to honey bees and other beneficial insects. 
Do not spray with it when fruit trees are in bloom for this reason. 
Can be used in buildings mixing 1 lb. of DDT No. 50 to 2 gallons 
of water spraying 1 gallon to 2,000 square feet of surface; leaves 
a slight residue which has a long after-effect killing flies, mos- 
quitoes, etc. . 
On animals use 2 lbs. to 25 gallons of water as a spray or 
dip—kills lice and horn flies. . 
PRICE: PREPAID—(1 Ilb., 60c) 
NOT PREPAID—(4 lbs., $1.80) (9 Ibs., $4.00) (50 Ibs., $20.00) 
_by express or freight collect or if by mail add postage. 
DDT No. 5 DUST 
The easy to apply dust form of this valuable insecticide. See 
DDT No. 50 for crops on which it may be used and for the insects 
that may be controlled. 
PRICE: PREPAID—(1 lb., 30c) 
NOT PREPAID—(G Ibs., $1.00) (25 Ibs., $3.00) (100 Ibs., $11.00) 
by express or freight collect or if by mail add postage: 
DU PONT GARDEN DUST 
A complete dust that kills garden insects, also prevents and 
stops many plant diseases. Contains Parzate, Fermate, Deenate 
DDT and Rotenone. It should be dusted on full strength or if a 
wet spray is desired mix 1 lb. with 5 gallons of water. 
NOT PREPAID—(1 Ib. sifter-top can, $1.15) (4 lb. canister, $3.50) 
if wanted by mail please add enough to cover postage. 
86 D. V. Burrell Seed Growers Co., Rocky Ford, Colo. 
