INSECTICIDES 
Good gardening consists not only of proper tillage, irrigation 
and care of the plants but also in combating various insect pests 
that will destroy or injure the crop. Insects obtain their nourish- 
ment by chewing, eating, or by sucking. Chewing insects can be 
killed by means of stomach poisons; sucking insects must be 
killed: by poisons coming in contact with their bodies, poisoning 
them or paralyzing their breathing organs. Insecticides may be 
applied as wet spray or in dust. Extensive research with insecti- 
-cides has been conducted with the view of'determining the .most 
effective killing agents as well as those that are, safest to use. 
DDT, Pyrethrum, Rotenone, and Nicotine have toon found to be 
among the best. Dust insecticide is applied as it comes from the 
package. Use any good dust gun which blows the insecticide with 
such force that it forms a smoky dust cloud. 

Results obtained depend largely upon the thoroughness of appli- 
cation. Start early in the season when the pests first appear. 
Direct the blast upward against the under side of the leaves if 
Aphis, Bean Beetles, or other pests which congregate on the lower 
side of the leaves are present. The same applies to wet.sprays. 
We can supply several sizes of sprayers. If interested in purchasing 
these please write. You will find dust guns listed page 89. 

DDT NO. 50—Micronized wettable powder especially prepared to 
mix readily with water for spraying. Contains 50% DDT. This 
high content makes a spray leaving minimum visable residue 
which is an advantage on many crops. To use on crops mix: T 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, 
velyet bean caterpillar, thrips, tomato fruitworm and. tomato 
pinworm. 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 unless used in a very weak solution. This spray leaves 
residue on the plants, clinging to the surface in the form of fine 
crystals, sometimes 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. 
Can be used in buildings mixing 1 lb. of DDT No. 50 to 2 gals. of 
water spraying 1 gal. to 2,000 sq. ft. of surface; leaves a slight 
residue which has a long after-effect killing flies, mosquitos, ete. 
PRICE: PREPAID—(1 Ib., $1.00) . 
NOT PREPAID—(5 Ibs., $4.00) (25 Ibs., $17.50) (100 Ibs., $65.00) 
by express or freight collect. 

See page 90 for Special ‘Prices to Market Growers 87 
